Technical Report Documentation Page
| 1. Report No. | 2. Government Accession No. | 3. Recipient's Catalog No. | ||
|---|---|---|---|---|
| 4. Title and Subtitle MBTC - 2027 Investigation of the Effect of Fines on Base Course Performance Final Report | 5. Report Date Aug 2006 | |||
| 6. Performing Organization Code | ||||
| 7. Author(s) Norman D. Dennis, Jr. Richard M. Welcher John H. Lawrence | 8. Performing Organization Report No. | |||
| 9. Performing Organization Name and Address University of Arkansas, Department of Civil Engineering 4190 Bell Engineering Center Fayetteville, AR 72701 | 10. Work Unit No. (TRAIS) | |||
| 11. Contract or Grant No. MBTC - 2027 | ||||
| 12. Sponsoring Agency Name and Address Arkansas State Highway and Transportation Department P.O. Box 2261 Little Rock, AR 72203-2261 | 13. Type of Report and Period covered Final Report 1 July 2001 thru 30 June 2004 | |||
| 14. Sponsoring Agency Code | ||||
| 15. Supplementary Notes | ||||
| 16. Abstract Crushed aggregate which met the gradation requirements of Arkansas Class 7 base course was sampled from five quarries in the state of Arkansas. The material taken from these quarries had a wide variety of mineral composition (limestone, dolomite, sandstone, syenite, novaculite) which represents a large portion of the mineral types used as Class 7 base material in the State of Arkansas. Three to five-ton samples from each quarry were fractionated and subsequently reblended in smaller batches so that the resulting gradations replicated the average of the historical gradation from each quarry, with the exception that the fines content (minus-#200 material) was varied from 6 to 16 percent in 2 percent increments. Replicate specimens for hydraulic conductivity testing and triaxial strength testing and suction testing were created for each of the six new gradations plus gradations at the upper and lower boundaries of the AHTD specification. Specimens were compacted in 6 inch diameter molds at optimum moisture content to 98 percent of maximum dry density, as determined by AASHTO T-180 method D. Hydraulic conductivity was measured on 6 inch diameter by 4 or 4.625 inch high specimens using both constant and falling head methods at relatively low gradients. Shearing strength was measured on 6 inch diameter by 12 inch high specimens using consolidated-drained triaxial testing at confining pressures of 5, 10 and 20 psi. The results of testing showed that the hydraulic conductivity of all specimens was so low that none of the base materials could be considered drainable at any of the tested fines contents. In addition, the decrease in hydraulic conductivity for fines contents of 10 to 16 percent was essentially negligible. The results of strength testing showed that the strength and modulus of these materials actually increased as the percent of fines increased from 8 percent up to 12 percent. Beyond 14 percent fines there was a slight decrease in both strength and modulus for three of the five quarries tested. As a result of this testing, recommendations were made to the Arkansas Highway and Transportation Department to increase the percentage of allowable non-plastic fines from 10 to 12 percent for Class 7 base course materials.. | ||||
| 17. Key Words Hydraulic Conductivity, Unbound Aggregate, Base Course, Shear Strength, Fines | 18. Distribution Statement No Restrictions | |||
| 19. Security Classif. (Of this report) (none) | 20. Security Classif. (Of this page) (none) | 21. No. of Pages 482 | 22. Price | |
Form DOT F 1700.7 (8-72) Reproduction of completed page authorized
By
Norman D. Dennis, Jr., Ph.D., P.E.
Richard M. Welcher, MSCE, P.E..
John H. Lawrence, MSCE, P.E.
Report prepared by
University Arkansas Department of Civil Engineering
for
Arkansas State Highway and Transportation Department, Little Rock, Arkansas
Contract Number MBTC-2027
August 2006








ABSTRACT
It has been long recognized that pavement service life is highly dependent on the strength characteristics and permeability (hydraulic conductivity) of the underlying base material. Current Arkansas State Highway & Transportation Department (AHTD) specifications limit the maximum fines (material passing a # 200 sieve) content in its Class 7 base aggregate to 10 percent. To decrease costs associated with the production of granular base course, aggregate producers in the State of Arkansas have proposed that the upper limit on fines be increased. The overall objective of this study was to determine if an increase in fines content, above the currently specified 10 percent, would have detrimental effects on base course performance.
In this study samples of Class 7 base course from five (5) different quarries, representing a wide range of geologic materials used in the State of Arkansas, were tested in the laboratory to measure hydraulic conductivity, moisture retention and strength properties at varying fines contents. The focus of this laboratory work was to determine the effect of fines on the strength, hydraulic conductivity and moisture retention of unbound aggregate base course materials. For this study a model gradation blend was developed for each quarry based upon historical gradations and AHTD specifications. Model gradations were developed for 6 percent, 8 percent, 10 percent, 12 percent, 14 percent, and 16 percent fines. The quantity of material retained on the # 40 and larger sieves did not vary for the different gradations from each quarry, only the percentage of fines was varied. A modified proctor of the upper and lower limit gradations from each quarry was performed to establish target dry densities and optimum moisture contents to be used in preparing specimens for testing.
In accordance with AASHTO specifications, replicate 152mm (6 inch) diameter by 117mm (4.265 inch) high samples containing 6 percent and 8 percent fines were tested by the constant head method (T-215). Samples containing 10 percent, 12 percent, 14 percent, and 16 percent fines were tested by the falling head method (ASTM D5084, method C). Two (2) replicate samples were tested for each percentage of fines. Samples were tested for capillary rise (suction) by a procedure developed in this study.
Strength and modulus testing was conducted in accordance with ASTM 2850, using consolidated-drained triaxial testing procedures on replicate 150mm (6 inch) diameter by 305 mm (12 inch) high specimens. Each test specimen was subjected to an initial stress controlled cyclic loading at an effective confining pressure of 5 psi to establish and initial modulus value. This loading was followed by strain controlled staged testing at 5, 10 and 20 psi to establish strength parameters c and φ.
It was determined that historical gradations of Class 7 base course used in Arkansas have hydraulic conductivity values that are from 2 to 6 orders of magnitude lower than what is considered to be “freely draining”. Any increase in the percentage of fines above the current maximum of 10 percent will have only minor effects on the hydraulic conductivity of the granular base course and will not affect its drainability at all. In addition, is was determined that strength and stiffness of Class 7 bases from the selected quarries actually increased as fines contents increased from 8 to 12 percent. For some quarries strength decreased marginally at 14 percent fines, while for others the strength remained essentially constant at fines contents of 14 and 16 percent. Overall the variation in strength for fines contents ranging from 6 to 16 percent was generally less than 10 percent.
CHAPTER 1
INTRODUCTION
A typical pavement section consists of a surficial wearing course, which may be flexible asphaltic concrete hot mix or rigid Portland cement concrete. This wearing course is underlain by a base course and finally a subgrade layer. The intermediate layer of material within the pavement structure, the base course, typically consists of crushed stone aggregate, soil-aggregate mixtures, or granular materials treated with either Portland cement or bitumen of varying blends and mixtures. The base course must have significant strength and resistance to deformation in order to adequately support the wearing course, limiting distresses in that layer such as rutting and fatigue cracking. The base course must also protect the subgrade from excessive stresses imposed by traffic loading. Most base courses are also relied upon to drain water from the pavement structure.
The most commonly used unbound aggregate base coarse material within the state of Arkansas is a crushed stone aggregate conforming to the gradation requirements of Class 7 base as defined by the Arkansas Highway and Transportation Department’s Standard Specifications for Highway Construction (AHTD, 1996). Accordingly, Class 7 material was selected as this study’s target material. The Arkansas Highway and Transportation Department (AHTD) currently mandates that the amount of fines (percentage of material passing the U.S. Standard No. 200 sieve) within Class 7 base
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range from 3 percent to 10 percent. Class 7 base course is a crusher run material and the ability to control the fines content is a major concern to aggregate producers. Rarely does Class 7 base fail to meet the AHTD gradation requirements because it has less than 3 percent fines; it normally fails because of excessive fines. Aggregate producers incur additional costs if tighter production controls and processing like washing or additional screening of the product are required to create a blend meeting the AHTD upper limit of 10 percent fines.
Many surrounding state departments of transportation allow for a percentage of fines in their respective equivalent of Class 7 crushed stone aggregate base to exceed the AHTD’s imposed maximum value of 10 percent. As a result several aggregate producers have posed the question of why the maximum amount of fines cannot be increased in the state of Arkansas. The purpose of this research is to investigate the effect of fines on the strength and stiffness characteristics of Class 7 crushed stone aggregate base course. From this research, design engineers will be able to evaluate the beneficial or detrimental strength characteristics of base course with fines contents that both fall within the current AHTD acceptance criteria and those with a percentage of fines higher than the currently established upper limit.
The performance of base course is generally evaluated using two criteria: 1) strength, and 2) permeability. These two criteria are heavily influenced by the amount of fines present within the base material. AHTD Class 7 base must meet particle size tolerances based upon established percentages passing the 37.5 mm (1-1/2 in.), 19.0 mm
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(3/4 in.), 4.75 mm (U.S. Standard No. 4), 0.425 mm (No. 40), and 0.075 mm (No. 200) sieves.
The gradation of a base course will place it into one of three fines content conditions: 1) little to no fines, 2) excessive fines, and 3) an intermediate fines content (Yoder and Witczak, 1975). The amount of fines present can affect the shear strength stiffness and permeability of the aggregate base course. The definition of what percentages constitute too few, too many, and appropriate amounts of fines has largely been left to individual state departments of transportation to evaluate and determine. The Arkansas Highway and Transportation Department has determined that the optimal performance for Class 7 base with respect to strength and permeability is achieved through a material that has a fines content ranging from 3 percent to 10 percent of the total weight.
The optimum fines content with respect to strength may differ from the required fines content to promote adequate drainage in the base material. The two conditions are essentially inversely proportional (Yoder and Witczak, 1975). A base material is considered free draining if little to no fines are present. Generally, fines contents of less than 2 percent are required for a material to be considered free draining (Barton, 2004). The permeability of the base material drops substantially as the percentage of fines is increased above the 2 percent threshold. The affect of fines on the drainage characteristics and strength of the Class 7 base material is the focus of this study.
The purpose of this study was to investigate the optimal fines content for AHTD Class 7 aggregate base courses in relation to strength and drainage performance criteria.
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This objective was accomplished by evaluating the strength performance for the base as measured by angle of internal friction (φ) values obtained with traditional triaxial testing and classical Mohr-Coulomb failure analysis. As well as evaluating the drainage performance by conducting both constant head and falling head hydraulic conductivity testing and suction tests. Specimens of Class 7 base course having varying blends of fines, both inside and outside the current AHTD acceptance tolerances, were examined. Fines contents of these blends are varied from 6 to 16 percent. The information gathered in this study will form the basis for suggesting an optimum fines content (or range of contents) at which the aggregate base strength/stiffness is greatest and drainage performance remains unhindered.
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CHAPTER 2
LITERATURE REVIEW
The main objective of this study is to investigate the affect of fines on the strength and drainage characteristics of unbound aggregate base course classified as Class 7 by the AHTD. A full understanding of pavement design concepts is essential to developing the evaluative criteria for strength performance. It is also necessary to discuss the advantages and disadvantages of various field and laboratory tests and procedures used to evaluate strength and drainability.
Base course is defined as the layer of material that lies immediately below the wearing surface of a pavement. The base course is constructed directly on subbase course or on natural subgrade if no subbase course is used. Its major function within the pavement structure is to provide structural support for the wearing course although it is often relied upon to provide drainage for the pavement structure (AASHTO, 1993) as well. When necessary, the base course may also provide protection against frost action.
The requirement for base course to carry load and distribute stress means stability of the aggregate is of utmost importance. The factors contributing to stability of the base course aggregate include particle-size distribution, particle shape, relative density, internal friction, and cohesion (Yoder and Witczak, 1975). High angles of internal friction are required to resist load-induced deformation. Internal friction, in turn, depends largely upon density, particle shape, and grain-size distribution of the
7
material. Of these properties, Yoder and Witczak state that the proportion of fine to coarse fraction is the most important in relation to overall base course stability.
Figure 2.1 presents three states of base aggregate with differing fines contents. An aggregate with little to no fines relies on coarse aggregate intergranular contact for strength development (Fig. 2.1a). Aggregate in this state has a relatively low density but is permeable and not subject to frost action. Base courses lacking fines are difficult to place properly and compact due to the lack of confinement of the coarse aggregate. Aggregate blends with few fines require some form of confinement before they will exhibit high shearing resistance. The lack of fines makes coarse particle angularity and shape more important to development of aggregate friction.
Figure 2.1: Three phases of increasing fines content in granular materials (Yoder and Witczak, 1975).
An aggregate blend that has a sufficient amount of fines to fill voids between the coarse particles (Fig. 2.1b) will continue to develop strength from coarse particle contact but with the addition of a fines matrix the coarse particles become effectively “locked” into place because the void spaces are filled with a relatively incompressible material. The density of the aggregate blend is increased but its permeability is reduced. Placement and compaction of these aggregate blends is feasible using conventional
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construction methods. Aggregate base with an amount of fines sufficient to fill the voids between the coarse aggregate particles (typically between 8% to 12% by weight depending on the parent geological material) is ideal from the standpoint of stability and will have a relatively high shearing strength in both confined and unconfined conditions (Yoder and Witczak, 1975).
Excessive fines in aggregate matrix will reduce shear strength and stability by pushing the coarse particles away from each other, decreasing point-to-point contact. In essence, the coarse particles “float” in the matrix of fine grained particles. Figure 2.1c illustrates this condition. The density of unbound aggregate bases with excessive fines is low and they should be considered as impervious and highly susceptible to frost action. Aggregate blends with excessive fines are not desirable for pavement base courses.
The AASHTO design guide does not provide specific quality requirements for base courses. Instead, the Guide relies upon AASHTO’s Manual for Highway Construction or ASTM Specification D-2940, “Graded Aggregate Material for Bases and Subbase for Highways and Airports,” for quality guidance. The authors of the AASHTO Guide encourage the development of quality and acceptance criteria for base course material by individual construction agencies, such as state departments of transportation, or municipalities, based upon their experience with locally available materials and accepted construction methods within their region.
Section 303 of the AHTD Standard Specifications for Highway Construction (AHTD, 1996) establishes acceptance and construction criteria for aggregate base course material. Section 303 specifies that “Class 7 shall be any mechanically crushed natural
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rock or stone of igneous, sedimentary, or metamorphic origin produced from a solid geological formation by quarrying methods”. Table 2.1 summarizes the requirements for AHTD Class 7 base, measured in accordance with the following AASHTO test specifications:
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Table 2.1: AHTD Class 7 material requirements (Section 303, AHTD, 1996).
| Sieve, mm (U.S.) | Percent Passing |
|---|---|
| 37.5 (1-1/2”) | 100 |
| 25.0 (1”) | 60 – 100 |
| 19.0 (3/4") | 50 – 90 |
| 4.75 (No. 4) | 25 – 55 |
| 0.425 (No. 40) | 10 – 30 |
| 0.075 (No. 200) | 3 – 10 |
| Maximum Liquid Limit (Minus No. 40 Material) | 25 |
| Maximum Plasticity Index (Minus No. 40 Material) | 6 |
| Minimum Percent Crusher-Run Material | 90 |
| Maximum Percent Wear by the Los Angeles Test | 45 |
The AHTD Standard Specifications do not include other material property requirements for the crushed stone material, such as specific gravity or alkali reactivity. A material is deemed acceptable for use as Class 7 base as long as the crusher produced blend meets the requirements established in Table 2.1.
The authors of the AASTHO Guide recommend untreated aggregate base course be compacted to a minimum of 95 percent of maximum laboratory dry density, determined in accordance with AASHTO T 180, Method D, (Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and 457-mm (18-in.) Drop) or the equivalent (AASHTO, 1993). The maximum particle size allowed in the compaction mold according to T 180 Method D procedures is 19.0 mm (3/4 in.). Class 7 base can
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have anywhere between 10% to 50% of particles greater than 19.0 mm (3/4 in.) in size; therefore, the presence of oversize particles in placed aggregated base course must be accounted for in Proctor curve development. The AHTD does not accept the premise that the AASHTO T 224 coarse particle correction equation provides an adequate maximum dry density and optimum moisture content representative of the in-place base course. Section 301.04(f) of the AHTD Standard Specifications requires coarse aggregate replacement in moisture density testing in lieu of coarse aggregate correction in accordance with AASHTO T 224, (Correction for Coarse Particles in the Soil Compaction Test) as required by AASHTO T 180. The AHTD specification states that coarse particles retained on the 19.0 mm (3/4 in.) sieve shall be replaced by an equal mass of material passing the 19.0 mm (3/4 in.) sieve and retained on the 4.75 mm (No. 4) sieve. The AHTD does not accept the premise that the AASHTO T 224 coarse particle correction equation provides an adequate maximum dry density and optimum moisture content representative of the in-place base course. The current rock replacement method has been used by the AHTD for a long time with acceptable results (Westerman, 2004). Since AASHTO leaves the decision as to which portion(s) of the Standard Specifications to apply to the individual governing agencies AHTD has elected to apply the provisions of a previous version of the AASTHO testing specifications. The AHTD requires base course aggregate to be compacted to at least 98 percent of maximum laboratory dry density, determined in accordance with the same AASHTO T 180, Method D (AHTD, 1996). The specification further states that the base material should be compacted at or near the optimum moisture content, but makes no reference to the allowable variance from that value. The AHTD originally required aggregate base to
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be compacted to 100% of the T 180 maximum dry density when field density was determined by the sand cone method. According to the AHTD (Westerman, 2004), “The sand cone method of in-place measurement of field density (AHTD Test Method 345) yielded higher percentages of maximum dry density than did the nuclear density (AHTD Test Method 330) method of measurement. The decision was made to specify that field density measurements be only by the nuclear method. The required minimum percentage compaction was then lowered to 98% in order to account for differences between percent compaction readings obtained by the sand cone and nuclear test methods.”
ASTM D 2940 “Standard Specification for Graded Material for Bases and Subbases for Highways and Airports” only provides general guidance for establishing suitable gradations for base course materials. The final base gradation is essentially determined by the transportation agencies or other governing bodies (Federal Aviation Administration, U.S. Army Core of Engineers, etc.). This is necessary due to differences in regional geological formations and the availability of different types of quarry produced aggregate. A comparison of the course aggregate gradations recommended by ASTM and the gradation specifications for states surrounding Arkansas for material similar to AHTD Class 7 is presented Table 2.2.
The table reflects the acceptance variability between states with respect to crushed stone aggregate base gradations. Not only are no two of the surveyed state’s base course requirements the same but no two states even use the same sieve sizes for establishing the desired gradation. The state most restrictive on fines content, Kentucky,
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ZR = standard normal deviate for a given level of reliability,
S= combined standard error of the traffic prediction and performance
o
prediction,
∆PSI = difference between the initial design serviceability index, po, and the
terminal serviceability index, pt, and
MR = resilient modulus, psi. The outcome of the performance equation is the required pavement structural number (SN) which is indicative of the total pavement thickness required to satisfy the design criteria (traffic, life, reliability, etc.).
To account for the differing blends of automobile and truck loading on a given roadway, the concept of an equivalent single axle load (ESAL) was developed. This method reduces traffic streams having different axle loads and axle configurations into a comparable number of passes of an 18-kip single axle load over the selected design period. The reliability input term provides some level of assurance that the pavement will perform as intended over the design period (Huang, 1993). A standard deviation is a convenient way to specify the variability of design factors. The use of a standard deviation covers variances in pavement material properties, design traffic, unexplained variance, and inadequacies of the design procedure or lack of fit of the design equations. A standard deviation representative of local conditions is selected and used in conjunction with reliability concepts. The use of reliability and standard deviation are required to take into account the variability of traffic estimates and the inherent uncertainties of performance predictions.
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Design serviceability loss (∆PSI) considers the level of service for newly constructed roadways (initial service level) and the lowest acceptable level of service below which corrective measures such as rehabilitation, reconstruction, etc. must be completed (terminal service level). The initial service index from the AASHO Road Test was 4.2 for flexible pavements. Terminal service indices of 2.5 for major highways and 2.0 for highways with lower traffic are recommended (Huang, 1993). The design serviceability loss for a new interstate, for example, would be 1.7 (4.2 minus 2.5). The PSI ratings developed during the AASHO Road Test were based on the evaluations of a subject rating personnel group. The panel rated differing pavement areas based upon their assessed need for repair work or corrective measures (Huang, 1993 from Carey and Irick, 1960).
The SN can be expressed in terms of the strength properties of the materials in the pavement system and their thicknesses. Once the required pavement SN has been developed, suitable pavement cross-sections are developed by manipulating the input parameters shown in Eqn. 2.2
SN = a1D1 + a2D2m2 + a3D3m3
(2.2)
where ai = ith layer coefficient
Di = ith layer thickness (inches), and
Mi = ith layer drainage coefficient.
Table 2.3 contains the layer coefficient (ai) values established by the AHTD of pavement section courses. The most widely used aggregate base course materials in Arkansas are either Class 7 quarry run crushed stone or Class 5 river run crushed stone.
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Selection of either class material for use is largely based on regional availability. Class 7 quarry run crushed stone is accepted as the superior base course material as evidenced by the higher established layer coefficient. The Class 7 layer coefficient of 0.14 is deemed applicable for a particular base course provided its material gradation falls within the established acceptance parameters and it possess the stated aggregate properties. This uniform layer coefficient for all quarry run crushed stone aggregate base material does not recognize any potential strength performance variations due to the actual material gradation within the acceptance bands or to variation in performance due to the mineral composition of the aggregate.
Table 2.3: AHTD established layer coefficients for pavement design (AHTD, 1998).
| Pavement Section Course/Type | Layer Coefficient, ai |
| ACHM Surface Course: 9.5 mm (3/8 in.), 12.5 mm (1/2 in.) | 0.44 |
| ACHM Binder Course: 25.0 mm (1 in.) | 0.44 |
| ACHM Base Course: 37.5 mm (1-1/2 in.) | 0.36 |
| P.C. Stabilized Base Course (Soil Cement) | 0.20 |
| Aggregate Base Course (Class 7) | 0.14 |
| Aggregate Base Course (Class 5) | 0.11 |
| Lime Treated Subgrade | 0.07 |
Various nomographs are available by which the design engineer can correlate material properties to structural layer coefficients. Figure 2.2 shows the relationships of the layer coefficient, a2, California bearing ratio (CBR), R-value, Texas triaxial, and modulus. Referring to Table 2.3 and Fig. 2.2, one notes that the layer coefficient for AHTD Class 7 a2 of 0.14 equates to a Texas triaxial classification of about 2.0 and a resilient modulus value of approximately 30,000 psi.
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Numerous methods of determining the quality and suitability of crushed stone for aggregate base courses have been employed. As stated within Section 2.3, the AASTHO Guide does not include a set of specific criteria which crushed stone aggregate must possess in order to achieve different layer coefficients (a2). This essentially means that the layer coefficient of 0.14 established by the AHTD for Class 7 base may devalue the strength of a high quality material while in some instances it may overvalue the strength for materials of marginal quality.
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The AHTD determines the acceptability of crushed stone for base course aggregate largely upon the results of its index properties (Atterberg limits and gradation) testing. Other test methods that may be used for the strength evaluation of base course material include the Texas triaxial, resilient modulus (MR), and triaxial tests. California Bearing Ratio (CBR) and R-value testing are generally reserved for testing of subgrade soils. These test methods along with their advantages and disadvantages are further discussed in the following sections of this report.
The term “index tests” commonly refers to a test or series of easily performed tests which give a value that can be related to an engineering property of the material such as strength, compressibility or permeability. The index tests required by the AHTD for base material acceptance are Atterberg limits (liquid and plastic limits and plasticity index) and grain size analysis. Completion of index property testing allows for the subject material to be designated according to the desired classification system, typically AASHTO or ASTM. The design engineer may then consult available correlations between a given material designation and the engineering performance properties and characteristics of the material.
Advantages to the use of index testing to evaluate base quality are the low cost ease with which Atterberg limits and gradation testing can be performed by transportation agencies and consulting engineers. The time to complete these tests is short when compared to other more rigorous test methods. It is opined that many states rely on index testing as a manner of affirming material quality during construction due to this time benefit.
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The main disadvantages to the use of index testing for the evaluation of base material are that these tests do not provide a direct measure of any engineering property and do not allow for modeling (loading, environment, etc.) of the conditions under which the base material will be placed. While index testing allows for accurate classification of the material, it does not provide any performance based information, such as resilient modulus values, other than that available through generalized correlations.
The California Bearing Ratio (CBR) test (AASHTO T 193) is an empirical test method that measures the penetration resistance of a standardized 49.63 mm (1.954 in.) diameter piston advanced at a uniform rate of 1.27 mm per minute (0.05 in. per minute) into the test specimen. The specimen is compacted into a 152.4 mm (6 in.) diameter mold to a final height of 116.8 mm (4.6 in.). Load readings are to be taken at each 0.64 mm (0.025 in.) of penetration from 0 to 5.1 mm (0 to 0.2 in.) and every 2.54 mm (0.1 in.) thereafter to a maximum penetration of 12.7 mm (0.5 in.). The penetration stress is calculated in megapascals (pounds per square in.) and is plotted versus penetration for each reading. If necessary, methods for correcting the load-penetration curve due to sample surface irregularities or other causes are presented within the AASHTO test method. The bearing ratio of the test specimen is calculated by taking the stress value from the stress penetration curve for 2.54 mm (0.1 in.) and 5.08 mm (0.2 in.) penetrations and dividing the stresses by standard stresses of 6.9 MPa (1000 psi) and
10.3 MPa (1500 psi), respectively then multiplying by 100.
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Surcharge weights are applied to the test specimens in order to replicate the field overburden conditions applied by the pavement to the base and/or subgrade courses. Inclusion of this surcharge load during soaking also provides for measurement of the material’s swell under the predicted in-service field conditions. The ability to modify the surcharge weights added to the test specimen to better represent those in-place conditions for the aggregate base course is beneficial. If the overburden weight is unknown during testing a surcharge weight of 4.54 kg (10 lbs) is typically selected. After the specimen is prepared in accordance with one of the following procedures, the mold and weights are immersed in water permitting free access of water to the top and bottom of the specimen and allowed to soak for 96 hours. A constant water level is maintained during this soaking period. The immersion period can be decreased for fine grained or granular soils that absorb moisture readily. Initial and final swell measurements are taken and the swell is calculated as a percentage of the initial height of the specimen.
Bearing ratios can be determined using one of two basic procedures. In the first method, the bearing ratio is determined on materials compacted to optimum moisture content. The optimum moisture content is determined in accordance with either AASHTO T 99 or T 180 Proctor test procedures. Three bearing ratio specimens are compacted using three different compactive efforts (usually 10, 25, and 56 blows per layer) to obtain unit weights both above and below the desired unit weight. After soaking (further described below), each of the three specimens is loaded in accordance with the specified procedure and load vs. penetration curves are developed. A graph
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showing the measured CBR vs. the dry unit weight is generated and the design CBR for the desired maximum dry unit weight is selected.
The second test procedure allows for bearing ratios to be determined over a range of water contents. Specimens are prepared similar to the method of moisture-density relations Proctor testing where a range of differing moisture content specimens are compacted at the same compactive effort (number of blows per lift). Typically three moisture-density curves are generated, one for each of three different compactive efforts. Each of the moisture-density specimens in all curves is loaded and the resulting bearing ratio data points are plotted against moisture content. The design CBR value selected for reporting is the lowest CBR within the specified water content range (such as within 2 percent of the optimum moisture content, for example) having a dry unit weight between the specified minimum and the dry unit weight produced by compaction with the water content range. Figure 2.3, taken from AASTHO T 193, displays the moisture-density and dry density-corrected CBR plots developed in this test method for a silty clay soil.
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Figure 2.3: Determining CBR for water content range and minimum dry unit weight. The CBR test has many limitations. It is of critical importance to not vary from the rate of loading, size of piston, and size of the compacted sample during testing in order to reduce testing scatter. The granular nature of crushed stone adds to erratic test results. The maximum particle size permitted within the test specimen is 19.0 mm (3/4 in.) which conflicts with base course gradations where the maximum particle size is greater than 19.0 mm (3/4 in.). Particle size variation within the test specimen, especially within the zone directly beneath the piston, may cause variance in load deformation characteristics, even within samples of the same gradation. It is known that a difference in CBR values exists between laboratory and field tests under saturated conditions. This difference is attributable to the laboratory specimen being completely confined laterally within a rigid cylindrical mold during
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testing. Resistance to piston penetration under laboratory conditions is affected by the confinement provided by the mold that retards displacement along the failure plane and thus inflates the CBR value obtained. Also, granular particles undergo lateral precompression during compaction in the rigid mold, causing increased CBR values.
A modified CBR test for granular materials in which controlled lateral pressure is applied on the specimen walls has been proposed (Livneh, 1967). The modified test specimen is initially prepared, compacted, and saturated in accordance with AASHTO T
193. The specimen is then removed from the rigid mold following saturation and placed in a rubber-sleeved pressure chamber of a type similar to that used in the Texas triaxial shear test (discussed in Section 2.5.4 of this report) and subjected to lateral pressure. The standard 4.54 kg (10 lb) surcharge weight utilized in method T 193 is replaced with a fixed disk to prevent vertical expansion of the specimen and to minimize shear stresses induced on the specimen as a result of the applied lateral pressures.
Studies completed by Livneh and Greenstein (1978) show that CBR values for granular materials vary with changes in lateral confining pressures. Their work showed that the standard test method that utilizes a rigid mold, and thus a single confining pressure, does not adequately reflect confinement conditions of in-place aggregate base course in the field. It is also important to understand that performance of base course aggregate as a structural layer is not directly proportional to its CBR value i.e., base course aggregate having a CBR value of 100 is not necessarily twice as good as one having a value of 50, (Barksdale, 2000). Relation of CBR values to pavement structural layer coefficients, ai, is accomplished through use of accepted nomographs such as those presented in Fig. 2.2.
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The Hveem Stabilometer test (AASHTO T 190) was developed by the California Division of Highways. This test method is used to measure the potential strength of subgrade, subbase, and base course materials for use in road and airfield pavements. The test is not as widely accepted or utilized as the CBR test, and is generally used in the western portion of the United States; however, the AHTD still uses this test for pavement support design. Where used, the material’s R-value is generally correlated to other strength indices such as the CBR and triaxial tests. The AHTD (1998) directly correlates the R-value to resilient modulus, MR, in their current roadway design guide. The R-value is defined as the resistance of a soil to lateral deformation under vertical loading as determined by a stabilometer. Figure 2.4 shows a Hveem stabilometer.

Four 1200-gram samples of soil or base material are prepared with an amount of water estimated to equal half to two-thirds of the water required to produce saturation. This amount of water is described in depth within Sections 4.3 and 4.4 of the AASHTO test method. When 75% or more of the test material passes the 19.0 mm (3/4 in.) sieve, only the portion of material passing that sieve should be used. Even if less than 75% of the sample passes the 25.0 mm (1 in.) sieve only the portion of material passing the 25.0 mm (1 in.) sieve should be utilized to mold the test specimen. A kneading compactor is
⎞⎟ ⎠
⎜⎝
used to fabricate sample specimens 101.6 mm (4 in.) in diameter by 63 mm (2.5 in.) in
height.
Resistance testing begins by placing the specimen into the Hveem stabilometer. A horizontal pressure of 34 kPa (5 psi) is applied to the specimen by means of the displacement pump. Vertical load is applied at a uniform rate of movement of 1.3 mm/minute (0.05 inches/minute). The horizontal pressure is recorded when the vertical load of 8900 N (2000 lbf) is reached and then the vertical load is decreased to 4450 N (1000 lbf). The horizontal pressure is lowered to 27 kPa (4 psi) and then brought back to 35 kPa (5 psi) and the vertical pressure is increased to 8900 N (2000 lbf). This process conditions the sample. The stabilometer pump handle is turned at a rate of approximately two turns per second and the number of turns required (measured using the turns-displacement dial indicator) to raise the horizontal pressure from 34 to 690 kPa (5 to 100 psi) is recorded. The resistance, R, value is calculated in Eqn. 2.3:
⎜⎟−
100
R
100
(2.3)
⎤⎥⎦
1
P
v
2.5
1
+
D
Ph
−
=
⎛
⎡⎢⎣
⎞⎟⎠
⎛⎜⎝
27
where R = resistance value
Pv = applied vertical pressure of 1103 kPa (160 psi)
Ph = transmitted horizontal pressure at Pv = 1103 kPa
(160 psi)
D = number of turns, displacement dial indicator reading
necessary to increase horizontal pressure from 34 to
689 kPa (5 to 100 psi)
The R-value calculated using Eqn. 2.3 is for specimens with compacted heights from 62 to 65 mm (2.45 to 2.55 in.). Specimens with dimensions slightly outside of this range are corrected using the correction chart presented in the AASHTO test method. R-values vary from 0 for water to approximately 100 for stiff, nearly rigid material. Densely graded, high density crushed stone base course typically has R-values in the 80’s and 90’ while less well graded and higher fines content gravelly materials produce R-values in the 50’s and 60’s (Barksdale, 2000).
The manner in which a compacted specimen is pushed from the Hveem mold into the stabilometer can cause sample irregularities, especially for granular materials such as crushed stone aggregate base courses. The actual R-value of a base course can be unintentionally degraded due to this disturbance. The acceptance limits for AHTD Class 7 aggregate base gradation allow for up to 50 percent of material to be retained on the 19.0 mm (3/4 in.) sieve. The final specimen height of 63 mm (2.5 in.) is too short for material of this nominal diameter. The base course of a pavement section rarely is less than 4 in. for rigid pavement and 6 to 8 in. for flexible pavement. This means that larger
28
size particles that may be present within the in-place base course are not accounted for in the Hveem mold. The AHTD does not use R-value testing for aggregate bases.
The focus of this investigation is on the effect of fines on base course strength. The small specimens required of this evaluative method limit appropriate blending, mixing, and compaction. Additionally, one would expect to see R-values for crushed stone aggregate base at the upper end of the spectrum. With all testing results, regardless of sample model blend, confined to one end of the R-value spectrum a determination of the effect of fines on base course strength performance could not be adequately determined. As a result, the use of this test to evaluate comparative strength will not be considered for this study.
The Texas triaxial test (formerly AASTHO T 212) is a static test developed by the Texas Department of Transportation to categorize the quality of soils and soil-aggregate combinations into one of six classifications based upon the location of the Mohr-Coulomb failure envelope.
A total of seven cylindrical specimens 152.4 mm (6 in.) in diameter and 203.2 mm (8 in.) in height are molded at optimum moisture content and maximum dry density. Care should be taken to mold the specimens as close to identical as practicable. The specimens are enclosed in lightweight stainless steel cylinders with tubular rubber membranes and top and bottom porous stones in place. The specimen set is placed in an oven air dryer to remove between 1/3 to 1/2 of the molding moisture content at a temperature of 60°C (140°F). The time estimated to remove the moisture should range
29
from 3 to 6 hours. With a constant lateral pressure of 6.9 kPa (1 psi), the specimens are subjected to capillary absorption for 10 days as shown in Fig. 2.5.
Six of the seven specimens are loaded in axial compression, each at a different confining pressure. The typical lateral pressures used for a series of tests are 0 kPa (0 psi), 20.7 kPa (3 psi), 34.5 kPa (5 psi), 69.0 kPa (10 psi), 103.5 kPa (15 psi), and 138.0 kPa (20 psi). The triaxial specimen is loaded at a rate of 2% strain per minute with (load) readings taken at every 0.5 mm (0.02 in.) of deformation to a maximum of 15.2 mm (0.60 in.) or until specimen failure has occurred. The lateral pressure, σ3, is applied
only to the sides of the specimen. As a result, the major principal stress, σ1, is simply the axial stress applied during loading because confining pressure is not applied to the specimen ends. The principle stresses at failure are calculated and Mohr’s stress circles are plotted for the combined test results of the six specimens. The Mohr-Coulomb failure envelope is developed. The failure envelope is transferred onto the Texas triaxial subgrade and flexible base material classification chart (Fig. 2.6) and the tested material is classified to the nearest 0.1 of a class. The higher the class the lower shear strength the material possesses. Stone base has a class rating of 2.6 or lower while clay is approximately 5.5. The Texas triaxial class values may be correlated to other design properties such as resilient modulus and pavement structural layer coefficient, a2, using nomographs similar to those shown in Fig. 2.2.
Yoder and Witzcak (1975) point out that a disadvantage of the procedure is the amount of friction existing between the rubber membrane and the chamber wall. This friction could lead to inflated axial stress values recorded at failure. The Texas Triaxial test was replaced in the 1986 AASHTO Design Guide with the repeated load triaxial
30
“resilient modulus” test. TxDOT still utilizes the Texas triaxial test (Tex-117-E) to determine the shearing resistance of base and subgrade materials. However, the Texas triaxial test is a static test that does not offer the same benefits of modeling in-service conditions as the dynamic load and response of the resilient modulus test.
2.5.5 Resilient Modulus The AASTHO Design Guide (1993) establishes resilient modulus as the standard, or recommended, measure of a material’s strength property for use in the evaluation and design of pavement sections. Resilient modulus is a measure of a material’s elastic behavior under the repeated application of dynamic load to a test specimen. The 1986 AASHTO guide recognized resilient modulus testing over 30 years after the concept was first introduced by Seed et al. (1959) and thus replaced the soil support value called for in previous AASHTO guide editions.
The soil support value was a performance parameter that was not clearly defined. The soil support, S, value for subgrade at the AASHO road test was taken as 3 while an S value of 100 was established for the crushed limestone aggregate base coarse present in the AASHO road test pavement section (Elliott, 2004). Development of subgrade and base support values was deferred to individual state transportation agencies by the AASHTO guide authors. No specific laboratory test directly provides S values; rather, the support parameter is obtained through correlations to tests such as California Bearing Ratio (CBR), Texas triaxial, R-value, etc. The vagueness and subjective nature of S values made design standardization difficult. Additionally, the correlations between established tests and S values were frequently based on little historical or laboratory testing (Elliott, 2004).
31






































































CHAPTER 3
RESEARCH METHODOLOGY
The site selection process began with the identification of quarries that produce AHTD Class 7 crushed stone aggregate base course throughout the state of Arkansas. The quarries were divided according to rock type, parent geological formation, and geographic location. Portions of Arkansas, such as the eastern and southeastern portions of the state, do not contain geologic formations conducive to the mining and production of crushed stone aggregate base and were not represented in this study. While not all approved Class 7 base is native to the state, all sites evaluated as part of this research are located within Arkansas.
After consulting with AHTD personnel in the Materials Division along with Resident Engineers from within AHTD Districts 4 and 10, the focus of this study was narrowed to five quarries that represent the predominant rock type and geological formations in Arkansas: Sharps (Benton County), Preston (Crawford County), Black Rock (Lawrence County), Glen Rose (Hot Springs County), and Granite Mountain (Pulaski County). Figure 3.1 illustrates the geographic distribution of the sites throughout the state. The location of each of the selected quarries is represented with a star. The aggregate types and parent geological formations for each quarry are listed in Table 3.1.
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Table 3.1: Parent stone of the selected quarries.
| Quarry | Location (County) | Aggregate Type | Geological Formation |
|---|---|---|---|
| Sharps | Benton | Limestone | Boone |
| Preston | Crawford | Sandstone | Hartshorne |
| Black Rock | Lawrence | Dolomite | Powell |
| Glen Rose | Hot Springs | Noviculite | Arkansas Noviculite |
| Granite Mountain | Pulaski | Syenite | Cretaceous |
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AHTD personnel were largely responsible for sampling of the subject quarries and trucking the material to the University of Arkansas’ Engineering Research Center (ERC) in Fayetteville, Arkansas. It is understood that the material was obtained from the working faces of produced Class 7 stockpiles with heavy-duty front-end loaders. The delivered material was stockpiled at the ERC facility. The close proximity of Sharps quarry to the ERC made it possible for the researchers to obtain material from that quarry without assistance from the AHTD.
Approximately 3000 to 5000 pounds of Class 7 material was sampled from each quarry. The stockpiled material was sampled in accordance with AASHTO T-2. Sieve analyses (AASTHO T-37) were conducted on the materials obtained to determine the “as-received” material gradations. Grainsize distribution curves for each quarry can be found in Appendix A.2. After air-drying, the aggregate was fractioned using the AHTD gradation acceptance criteria particle size breakpoints of 37.5 mm (1-1/2 in.), 19.0 mm (3/4 in.), 4.75 mm (No. 4), 0.425 mm (No. 40), and 0.075 mm (No. 200) sieves.
Liquid limit (AASHTO T-89), plastic limit and plasticity index (AASHTO T-90) testing was completed on material passing the 0.425 mm (No. 40) sieve. Both wet and dry sieving methods were used to obtain minus 0.425 mm (No. 40) material for use in plasticity testing. The specific gravity and absorption of material retained on the 4.75 mm (No. 4) sieve were determined in accordance with (AASHTO T-85). Two samples of each quarry material were prepared with grain size distributions intended to meet the upper and lower boundaries of the AHTD Class 7 acceptance criteria. This criterion is
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given in Section 303 of the AHTD Standard Specifications for Highway Construction (AHTD, 1996). The upper boundary blend followed a grain-size distribution curve that allowed the greatest percentage of material passing a particular gradation breakpoint. The lower boundary blend followed a distribution curve having the least amount of material passing a particular gradation breakpoint. Moisture density relationships were developed for each of these blends in accordance with AASHTO T-180, Method D. In accordance with AHTD requirements, all plus 19.0 mm (3/4 in.) material was replaced with an equivalent weight of plus 4.75 mm (No. 4) material. This process of sample preparation and determination of material index properties was repeated for each quarry.
The “as-received” material gradation results were compared to historical gradation information furnished by the AHTD Materials Division. Following an evaluation of all the gradation data, a model gradation was established for each quarry. The model gradation was intended to represent the upper boundary of the historical and “as-received” gradation data, under the hypothesis that finer grained blends would represent the worst-case conditions for both strength and hydraulic conductivity. Figure
3.2 illustrates the historical, “as-received”, and model gradations for Sharps quarry along with the current AHTD acceptance limits. Historical gradations for all quarries can be found in Appendix A.1. The maximum dry density and optimum moisture content for the model blends was established based upon the results of the density testing for the upper and lower bound blends (Fig. 4.2).
105

100 10 1 0.1 0.01
Particle size (mm)
It was assumed that these values for the extremes in gradation adequately represented the full range of sample blends to be tested. Modified Proctor testing for each of the various sample blends was considered unnecessary since only minor differences in unit weight and optimum moisture content existed between the coarsest and finest blends of each material.
A variety of grain-size distributions were used to create compacted specimens for shear strength testing and evaluation. Boundary blend samples were first established according to the AHTD upper and lower gradation acceptance tolerances. The upper boundary blend had a fines content, minus 0.075 mm (No. 200), of 10 percent. The lower boundary blend had a fines content of 6 percent in lieu of the expected 3 percent
106
because the historical data from each quarry indicated that 6 percent was the practical minimum percentage of fines produced in the state.
The fines content of the model blends was varied from 6 percent to 16 percent in increments of 2 percent. The amount of material passing the 0.425 mm (No. 40) sieve was adjusted as the fines content increased in order to maintain a constant total sample weight. The purpose of varying the fines content on only the model gradation and not the boundary blends was to replicate likely crusher production scenarios. While Fig. 3.2 graphically illustrates the blending concept for the Sharps quarry, Table 3.2 presents the percentages of material used in the model gradations for each quarry at a fines content of 10 percent. Blending for all quarries and all gradations can be found in Appendix D.
Table 3.2: Summary of model blend gradation percentages for all quarries at a fines content of10 percent.
| Quarry | Sharps | Preston | Black Rock | Glen Rose | Granite Mountain |
|---|---|---|---|---|---|
| Sieve, mm (size) | Percent Passing: Model Blend 10% Fines | ||||
| 19.0 mm (3/4 inch) | 81 | 75 | 81 | 86 | 81 |
| 4.75 mm (No. 4) | 43 | 35 | 35 | 47 | 45 |
| 0.425 mm (No. 40) | 18 | 20 | 18 | 20 | 18 |
| 0.075 mm (No. 200) | 10 | 10 | 10 | 10 | 10 |
Compacted cylindrical specimens were prepared in a split mold for triaxial shear testing. These specimens measured 15.25 cm (6 in.) in diameter and 30.48 cm (12 in.) in height, resulting in a specimen volume of approximately 5550.1 cubic cm (0.196 cubic ft). The AHTD requires that all base course aggregate be compacted to at least 98 percent of the maximum modified Proctor dry density at a moisture content near the optimum value (AHTD, 1996). Accordingly, the established model blend maximum dry density value was multiplied by 98 percent to obtain a target unit weight in kg per cubic
107
meter (lbs. per cubic ft). Each of the aggregates were allowed to dry for several days inside the laboratory after which hygroscopic moisture contents on the order of 0.2 percent were measured. Because air-dry weights for these materials were so close to the oven-dry weights, air-dry material weights were used in sample blending. The weight of material to be compacted into each triaxial specimen was determined by multiplying the target unit weight by the specimen volume. Table 3.3 presents the material quantities used for a typical model blend. The material weights use in the blending for all gradations and quarries are presented in Appendix D.
Table 3.3: Summary of material quantities used in preparing test specimens for Sharps quarry.
| % Passing | |||
|---|---|---|---|
| Size | Lower bound | Model Gradation | Upper bound |
| 1-1/2" | 100 | 100 | 100 |
| 3/4" | 50 | 81 | 90 |
| #4 | 25 | 43 | 55 |
| #40 | 10 | 18 | 30 |
| #200 | 6 | Varried | 10 |
| PAN | 0 | 0 | 0 |
| γd, max (pcf) | 141.0 |
| 98% γd, max (pcf) | 138.2 |
| Mold Dia (in) | 6 |
| Mold Ht.(in) | 12 |
| Mold Vol (cf) | 0.1963 |
| Material/sample (lb) | 27.13 |
| OMC (%) | 5.5 |
| Lower Bound Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 27.13 | Upper Bound Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 27.13 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 50 | 6153.1 | 3/4" | 10 | 1230.6 | ||
| #4 | 25 | 3076.5 | #4 | 35 | 4307.2 | ||
| #40 | 15 | 1845.9 | #40 | 25 | 3076.5 | ||
| #200 | 4 | 492.2 | #200 | 20 | 2461.2 | ||
| Pan | 6 | 738.4 | Pan | 10 | 1230.6 | ||
| Model Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 27.13 | Model Blend: 12% Fines | Est. Total Sample Wt. (lbs) | 27.13 | ||
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2338.2 | 3/4" | 19 | 2338.2 | ||
| #4 | 38 | 4676.3 | #4 | 38 | 4676.3 | ||
| #40 | 25 | 3076.5 | #40 | 25 | 3076.5 | ||
| #200 | 12 | 1476.7 | #200 | 6 | 738.4 | ||
| Pan | 6 | 738.4 | Pan | 12 | 1476.7 | ||
| Model Blend: 8% Fines | Est. Total Sample Wt. (lbs) | 27.13 | Model Blend: 14% Fines | Est. Total Sample Wt. (lbs) | 27.13 | ||
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2338.2 | 3/4" | 19 | 2338.2 | ||
| #4 | 38 | 4676.3 | #4 | 38 | 4676.3 | ||
| #40 | 25 | 3076.5 | #40 | 25 | 3076.5 | ||
| #200 | 10 | 1230.6 | #200 | 4 | 492.2 | ||
| Pan | 8 | 984.5 | Pan | 14 | 1722.9 | ||
| Model Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 27.13 | Model Blend: 16% Fines | Est. Total Sample Wt. (lbs) | 27.13 | ||
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2338.2 | 3/4" | 19 | 2338.2 | ||
| #4 | 38 | 4676.3 | #4 | 38 | 4676.3 | ||
| #40 | 25 | 3076.5 | #40 | 25 | 3076.5 | ||
| #200 | 8 | 984.5 | #200 | 2 | 246.1 | ||
| Pan | 10 | 1230.6 | Pan | 16 | 1969.0 | ||
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Consolidated-drained (CD) conventional triaxial testing was selected to evaluate the effect of fines on the shear strength of AHTD Class 7 crushed stone aggregate base course. Index tests such as the CBR or R-Value do not provide direct information on performance capabilities of a material. The values obtained from these index or classification tests must be correlated to the real engineering properties for the material. The CBR and R values obtained for crushed stone aggregate base would all be confined to the very highest range of their respective evaluative scale (perhaps exceeding the scale) and would yield only quantitative information on the relative performance of various base course materials. For example: CBR values for crushed stone base would typically range in the 80’s and 90’s (Barksdale, 2000). While the Texas Triaxial test provides definitive information on engineering properties, it is no longer accepted as a material standard by either AASHTO or ASTM. In addition, the equipment required to conduct this test was not available. Even if the equipment could have been fabricated, the requirement of molding seven test specimens for each single model gradation was considered excessive. Also, the requirement to subject all test specimens to capillary moisture action for 10 days would have greatly extend the testing regimen. The development of a series of Mohr stress circles to define the Mohr-Coulomb failure envelope for Texas Triaxial testing is essentially the same as the methods of CD triaxial testing, except the Texas Triaxial offers less control over applied stresses. The consolidated-drained testing can be accomplished more efficiently than Texas Triaxial testing.
109
According to the AASHTO design guide, the definitive material property for assessment of subgrade and base material performance in pavement analyses and design is the repeated load triaxial test, or “resilient modulus” test. However, this testing procedure requires elaborate testing equipment and highly trained personnel. Research completed by Thompson and Smith (1990) also revealed that resilient modulus testing may not be an effective method of evaluating the performance potential of crushed stone aggregate base course materials having slightly different gradations.
After evaluating the advantages and disadvantages of each of the test methods, conventional triaxial testing was selected as the method which would offer the most effective comparative evaluation of the effect of fines on strength. Additional considerations are that the test protocol developed form this study would be easily transportable to other testing agencies and the necessary equipment for this testing is relatively inexpensive, when compared to resilient modulus testing equipment and is widely available from many commercial venders. The drainage characteristics of the granular aggregate base course are such that it may be tested rapidly using the consolidated-drained method.
To evaluate the drainage characteristics of the various gradations both falling head and constant head laboratory hydraulic conductivity tests were selected using both rigid and flexible wall permeameters. Gradients for both test types were kept very low in an attempt to replicate field conditions. While infiltrometers of various configurations could have been used to measure performance of these materials in a field setting the ability to replicate testing procedures and create constant environmental conditions would have been compromised. The selection of commercially available testing
110
equipment and the standard procedures of the laboratory tests make this testing protocol easily transportable to other testing agencies. In addition to hydraulic conductivity testing, suction, or capillary rise, tests were conducted to determine if variation in fines content had an impact on the materials affinity for water or ability to retain water.
Triaxial test specimens 152 mm (6 in.) in diameter by 304 mm (12 in.) in height were created in a split mold, Figs. 3.3 and 3.4, using dynamic compaction from a Marshall hammer having a 3” face. A detailed step-by-step description of the preparation of triaxial test specimens is presented in Appendix E.

The equipment used for the testing consisted of a triaxial system having the following components: computer controlled loading frame, triaxial cell, load cell, pressure transducers, pressure panel, variable power supply, communication module, and PC unit. The hardware selected for this research was the Sigma-1 automated load test system manufactured by Trautwein Soil Testing Equipment. The Sigma-1 loading frame is powered by a D.C. servo motor which theoretically provides infinite resolution on the control of the motor’s rate of revolution. In practice however, one revolution of the
111
motor consists of 2000 counts, or pulses, and the pulse rate can vary from approximately 58 million pulses per second to as slow as 3 seconds per pulse. As a result, the maximum and minimum travel rates are approximately 20 mm/minute (0.787 in./minute) and 7.52 x 10-3 mm/minute (2.96 x 10-5 in./minute), respectively. The peak and continuous torque provided by the motor is 500 ounce-inches and 250 ounce-inches, respectively. The load frame is capable of providing 62.3 kN (14 kip) of thrust through the use of an efficient ball screw and gear reduction system. The load cell has a 44.5 kN (10 kip) maximum capacity with a linearity of 0.025 percent. The linear displacement sensor has a maximum range of 50 mm (1.97 inches) with a linearity of 0.03 percent. The pore pressure transducers have a maximum pressure 1034 kPa (150 psi) and a linearity of 0.1 percent. Figure 3.5 shows the testing system configuration. The GEOTAC® TestNet component provided automatic data acquisition according to a user developed schedule and control of the load frame motor in accordance with a user defined program.
Staged consolidated-drained (CD) triaxial testing was selected as the method of determining shear strength for the materials tested in this study. Test specimens were backpressure saturated and then sequentially subjected to a confining pressure and loaded axially until yielding occurred. The confining pressure was increased for subsequent stages and an axial load was applied until the specimen yielded. Drained testing was considered appropriate for the aggregate material tested in this study because excess pore water pressure, uc, was dissipated rapidly during the application of confining pressure and deviator stress. In consolidated-drained (CD) testing drainage is permitted during both stages so that full consolidation occurs under the confining stress (σ2 = σ3)
112
and no excess pressure develops during the application of deviator stress, σd. The test specimen was considered to be fully consolidated when the water levels in the accumulators, which provided pressure to the top and bottom drain lines of the test specimen, ceased to change after application of a specified confining pressure. This stabilization occurred within 10 seconds after application of a confining pressure. The specimens were loaded so slowly that and pore pressures that would tend to develop were dissipated to at least the 95 percent consolidtation level at all times during cyclic and staged triaxial testing as described later in this chapter. Each test specimen initially underwent a cyclic test in the elastic region followed by staged load testing at varying

113
effective confining pressures which were carried to deformations somewhat beyond the yield point.
Each sample was backpressure saturated according to the procedure presented in Appendix B.3. Initial testing of the Sharps quarry material indicated that a B-value (Skempton, 1954) of at least 0.85 could be achieved quickly at a backpressure of 414 kPa (60 psi) and a confining pressure of 448 kPa (65 psi). The backpressure was maintained at this level while the cell pressure was increased to 483 kPa (70 psi) and 552 kPa (80 psi) to create effective confining pressures of 34.5, 69, and 138 kPa (5, 10, and 20 psi) for the cyclic and first stage, second stage and third stages of testing, respectively.
Initial cyclic testing consisted of 300 readings at 0.0084 percent strain followed by 100 readings at 0.025 percent strain. The cyclic reading schedule was later refined to include more frequent readings to avoid an overshoot of loading and unloading before the commence and halt commands could be invoked. Ultimately the number of readings was increased to 600 at 0.0042 percent strain intervals. All of the staged testing consisted, in the order shown, of 40 readings at 0.025 percent strain, 40 readings at 0.1 percent strain, and 40 readings at 0.25 percent strain. The following data were collected at each reading: applied load, cell pressure, pore pressure, deformation, and strain, from which the specimen stresses σ1, σ3, and σd were calculated.
Cyclic triaxial tests were performed on each specimen under consolidated-drained, CD, conditions. The effective confining pressure of 35 kPa (5 psi) was selected because it represents typical confining stress found in highway base course (Thornton
114
and Elliott, 1988). The strain rate used for loading the specimen was initially set at 60 percent/hour for a few samples but was later reduced to 30 percent/hour because the computer system could not reliably reverse cycles at the proper level of stress. A review of the testing output data (further discussed within Chapter 4) confirmed that both strain rates were sufficiently slow enough to prevent any buildup of excess pore water pressure during the loading phase.
Testing consisted of 40 stress-controlled loading and unloading cycles. For each cycle, loading of the specimen increased to, and was held at, a 21 kPa (3 psi) deviator stress level for a period of 30 seconds followed by unloading the specimen to a lower limit of 3.5 kPa (0.5 psi) deviator stress. This level was held for 30 seconds until the next loading-unloading cycle began. The low applied axial stress was intentionally selected to avoid a premature failure the specimen prior to the beginning of staged triaxial testing and to determine the modulus values of the test specimen at intermediate levels of strain.
The repeated load testing was conducted at strain rates that were much lower than those for typical resilient modulus, MR, testing. As a result, the modulus values developed were expected to be lower than those from standard resilient modulus testing. The purpose of completing repeated load testing prior to the first stage of triaxial shearing was to develop some correlation between the modulus values from this testing and the more expensive and time consuming resilient modulus testing.
At the conclusion of cyclic testing multiple stage triaxial shear tests were performed on each test specimen. The first stage was completed at the conclusion of the
115
cyclic testing at a confining pressure of 35 kPa (5 psi), using the same strain rates of 60 percent/hour and later 30 percent/hour as discussed in section 3.6. The termination strain for the first stage of testing was set at 3 percent.
The second stage of testing was completed under an effective confining stress of 69 kPa (10 psi). The predetermined stage 2 termination strain was selected as 6 percent. However, as illustrated in Fig 3.6, testing was typically terminated when the real-time stress vs. strain plot indicated the specimen had yielded. Typically loading was terminated at each stage when a clear yield could be established to prevent premature sample destruction prior to completing the final stage testing.

116
The third and final stage of testing was completed at an effective confining stress of 138 kPa (20 psi) to a maximum incremental strain level of 4 percent (cumulative total strain for all stages did not exceed 10 percent). The real-time stress vs. strain plots indicated shear failure for a majority of the test specimens occurred prior to a cumulative strain of 10 percent. In these instances testing was halted at the indication of a clear shear failure. The selection of the effective confining pressures in the staged triaxial test was made so that the Mohr-Coulomb failure envelope could be adequately established. Three testing stages were selected to adequately define the Mohr-Coulomb failure envelope over the range of stresses expected under typical highway loading conditions.
The rubber membranes used to isolate the specimen in the triaxial chamber act as short hollow columns when they are confined on one side by the liquid confining pressure and on the other side by the sample and liquid backpressure. As a result, the modulus of elasticity for the rubber membranes was required to determine what portion of the applied deviator stress was acting on the three (3) confining membranes and what portion was actually acting on the test specimen.
To determine this value a 101.6 mm (4 in.) width of the 0.686 mm (0.027 in.)thick membrane was cut for testing. The membrane was suspended from a 12.5 mm (No. 4) diameter rebar 406.4 mm (16 in.) in length. A second 12.5 mm (No. 4) rebar was placed inside the test specimen and weights were incrementally suspended from it. An ink line 101.6 mm (4 in.) in length was drawn on the membrane in the direction of loading which established the gage length, L. With each applied load the length between the two endpoints of the gage line was measured. The incremental strain, ∆L/L, was
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determined with each addition of weight to the membrane. The stress (σ) at each increment was found by dividing the total weight by the membrane corrected cross-sectional area. Table 3.4 summarizes the data obtained from the modulus testing. A plot of stress divided by strain (modulus) vs. strain, as illustrated in Fig. 3.7 was generated from which an average membrane modulus was extracted for the range of strains used in the triaxial testing. The membrane modulus was multiplied by the strain at a particular stage of the test to determine the stress in the membranes under the associated load.
Table 3.4: Membrane modulus determination raw data.
| Initial gauge | Initial gauge | Initial | |||||||
|---|---|---|---|---|---|---|---|---|---|
| length, mm | width, mm | Thickness, mm | |||||||
| 100 | 100 | 0.686 | |||||||
| Reading | Weight, g | Length, mm | Width, mm | Corrected Area, mm2 | Thickness, | ∆L, mm | ∆L/L | σ, g/mm2 | E, g/mm2 |
| 0 | 100 | 100 | 68.6 | 0.686 | 0.0 | 0 | 0.0 | - | |
| 267 | 100.2 | 99.0 | 68.5 | 0.692 | 0.2 | 0.002 | 3.9 | 1953.9 | |
| 1 | 248 | 102.0 | 98.0 | 67.3 | 0.686 | 2.0 | 0.02 | 3.7 | 188.1 |
| 2 | 362.5 | 103.0 | 97.0 | 66.6 | 0.687 | 3.0 | 0.03 | 5.4 | 186.9 |
| 3 | 477 | 104.0 | 96.5 | 66.0 | 0.684 | 4.0 | 0.04 | 7.2 | 188.0 |
| 4 | 591.5 | 104.5 | 96.0 | 65.6 | 0.684 | 4.5 | 0.04 | 9.0 | 209.2 |
| 5 | 706 | 106.0 | 95.5 | 64.7 | 0.678 | 6.0 | 0.06 | 10.9 | 192.7 |
| 6 | 820.5 | 108.0 | 95.0 | 63.5 | 0.669 | 8.0 | 0.07 | 12.9 | 174.4 |
| 7 | 935 | 109.0 | 94.5 | 62.9 | 0.666 | 9.0 | 0.08 | 14.9 | 179.9 |
| 8 | 1049.5 | 111.0 | 94.0 | 61.8 | 0.657 | 11.0 | 0.10 | 17.0 | 171.4 |
| 9 | 1164 | 112.0 | 93.5 | 61.3 | 0.655 | 12.0 | 0.11 | 19.0 | 177.4 |
| 10 | 1278.5 | 113.0 | 93.0 | 60.7 | 0.653 | 13.0 | 0.12 | 21.1 | 183.1 |
| 1393 | 115.0 | 92.0 | 59.7 | 0.648 | 15.0 | 0.13 | 23.4 | 179.0 | |
| 12 | 1507.5 | 116.0 | 91.0 | 59.1 | 0.650 | 16.0 | 0.14 | 25.5 | 184.8 |
| 13 | 16 | 118.0 | 90.5 | 58.1 | 0.642 | 18.0 | 0.15 | 27.9 | 182.9 |
| 14 | 1736.5 | 120.0 | 90.0 | 57.2 | 0.635 | 20.0 | 0.17 | 30.4 | 182.3 |
| 15 | 1851 | 121.0 | 89.0 | 56.7 | 0.637 | 21.0 | 0.17 | 32.6 | 188.1 |
| 16 | 1965.5 | 124.0 | 88.5 | 55.3 | 0.625 | 24.0 | 0.19 | 35.5 | 183.6 |
| 17 | 2080 | 126.0 | 88.0 | 54.4 | 0.619 | 26.0 | 0.21 | 38.2 | 185.1 |
| 18 | 2194.5 | 129.0 | 87.0 | 53.2 | 0.611 | 29.0 | 0.22 | 41.3 | 183.6 |
| 19 | 2309 | 131.0 | 86.0 | 52.4 | 0.609 | 31.0 | 0.24 | 44.1 | 186.3 |
| 20 | 2423.5 | 134.0 | 85.0 | 51.2 | 0.602 | 34.0 | 0.25 | 47.3 | 186.6 |
| 25 | 2996 | 148.0 | 80.0 | 46.4 | 0.579 | 48.0 | 0.32 | 64.6 | 199.3 |
| 6364 | 3182 | 158.0 | 79.0 | 43.4 | 0.550 | 58.0 | 0.37 | 73.3 | 199.6 |
| 8634 | 4317 | 196.0 | 70.0 | 35.0 | 0.500 | 96.0 | 0.49 | 123.3 | 251.8 |
| 10924 | 5462 | 225.0 | 62.0 | 30.5 | 0.492 | 125.0 | 0.56 | 179.1 | 322.5 |
| 12069 | 6034.5 | 284.0 | 58.0 | 24.2 | 0.416 | 184.0 | 0.65 | 249.8 | 385.6 |
| 13214 | 311.0 | 56.0 | 22.1 | 0.394 | 211.0 | 0.68 | 299.5 | 441.5 | |
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E, g/mm2
500
450
400
350
300
250
200
150
100
50
0
0
ε, ∆L/L (%)
Figure 3.7: Modulus vs. strain for single membrane.
Figure 3.7 illustrates that the membrane modulus of E = 185 g/mm2 (0.41 lb/mm2) remains relatively constant until strains of about 25 percent are achieved. Since the majority of all staged triaxial testing was terminated by a maximum cumulative strain, ε, of under 10 percent, it was reasonable to assume a constant value for modulus over the entire strain range of a triaxial test.
Three membranes were used for each test specimen. The inner membrane closest to the sample material was punctured frequently by the aggregate during compaction process; thus its ability to isolate the sample from the confining fluid was compromised. The middle membrane and outer membranes were added to insure that the specimen would be totally isolated from the confining water. Equation 3.1 was ![]()
119
A =πnDt (3.1)
where A = area of all membranes
n = number of membranes
D = specimen diameter
t = individual membrane thickness. The total area for the three membranes was determined to be 985 mm2 (1.53 in2). As a result the load to be subtracted from the corrected load cell reading is given by Eqn. 3.2.
Pmembrane =EεA (3.2)
where E = membrane modulus
ε = maximum cumulative strain during testing
A = total corrected membrane areas. The load carried by the membranes during deviator stress application varies with strain. Considering the maximum cumulative strain during staged triaxial testing rarely exceeded 8 percent, the maximum load applied to the membranes would be less than
143.7 N (32.3 lbs). When one compares this to the axial load applied to the specimen it can be concluded that the membrane load is low when compared to the total applied loads and as a result would have little affect on the Mohr-Coulomb failure analyses if it were ignored.
Most reference texts on soil mechanics indicate that no cohesion should exist for granular materials, and they are typically represented in graphical form with a cohesion intercept value of 0. This concept was not verified in this study. While the Mohr-Coulomb failure envelope for cohesionless materials is expected to pass through the
120
origin, indicative of a cohesion intercept value of 0, each of the Mohr-Coulomb failure envelopes generated from the test data had a finite value for cohesion. Hvorslev (1960) believed that the Mohr-Coulomb failure envelope was actually curved with the envelope being steeper at low stresses and flatter at high stresses. The failure envelope was steeper at low stresses due to the forced intersection with the origin. Testing conducted by Olson (2004) contradicts this concept. Olson’s work with drained tests on kaolinite shows a cohesion intercept even at low stresses. It is thus concluded that the cohesion intercept values observed during testing were valid and the true measurement of shear strength should include cohesion for these granular materials.
Since the findings of this study are contrary to many reported, the possibility that the test specimens were not tested in a totally drained condition was examined. The coefficient of consolidation, cv, was determined from the initial consolidation stage prior to triaxial shear testing. Consolidation times were taken conservatively as 10 seconds based on the cessation of water level changes within the cell and drain accumulators after application of a confining pressure. A cv value of 1695.6 ft2/day was calculated for the specimens using Eqn. 3.3. Equation 3.4 was then used to calculate a time to failure at an average degree of consolidation equal to 95 percent considering the specimen drainage conditions, sample height, coefficient of consolidation, and time to shear failure (Gibson and Henkel, 1954). Discussion of this method of analysis has been previously presented in Chapter 2.
πH 2
c= (3.3)
v
4t100
where cv = coefficient of consolidation
H = specimen height 121
t100 = time at which 100 percent consolidation is achieved.
U =1−η HCvdt 2 f (3.4)
f
where Uf = target degree of consolidation Hd = sample drainage height
η = drainage condition parameter C = calculated coefficient of consolidation
v
tf = time to shear failure. Table 3.5 summarizes the η parameter values based upon drainage conditions. The target degree of consolidation is established as 95 percent for this study and the minimum time to failure, tf, was calculated to be 1.42 minutes by rearranging Eqn. 3.3.
Table 3.5: Summary of η parameter values for time to failure analysis.
| Drainage Condition | η |
|---|---|
| Drainage from one end only | 0.75 |
| Drainage from both ends | 3.0 |
| Radial drainage only | 32.0 |
| Drainage radially and out one end | 35.8 |
| Drainage radially and out both ends | 40.4 |
All of the tests were conducted at strain rates that gave times to failure in excess of the minimum 1.42 minutes. No excess pore water pressures were developed during the staged or cyclic testing; the CD triaxial testing conditions were present throughout. Results are summarized in Chapter 4.
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The testing methods described were repeated for each of the quarry materials. In total 88 independent tests were conducted on samples at varying fines contents from the five quarries under investigation in an attempt to quantify the affect of fines on the shear strength and stiffness of the crushed stone base materials.
Samples containing 6 percent and 8 percent fines were tested by the constant head method in accordance with AASHTO T -215 (ASTM, D2434). The AASHTO specification used in this study is identical to the ASTM specification, except that the sieve analysis for the test according to AASHTO shall conform to T-88. The A STM specification requires that the sieve analysis conform to D-422.
Samples containing 10 percent, 12 percent, 14 percent, and 16 percent fines were tested by the falling head –rising tailwater method in accordance with ASTM D5084, me thod C. The ASTM procedure was followed for falling head tests because no AASHTO specification exists for a falling head test.
In this study a constant head permeameter, show n in Fig. 3.8, was used to determine values of hydraulic conductivity for the lower bound and the model blen ds at 6 and 8 percent fines.
Item # 1 in Fig. 3.8 denotes the 19 mm O.D. diameter bubble tube used to maintain a constant head on the sample being tested. The bubble tube can be moved vertically by loosening the lock nut at the top of the reservoir to allow adjustment of the gradient used in the test. According to AASHTO 215 (D 2434) the suggested values of the gradient range from 0.3 to 0.5 for densely compacted material.
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Item # 2 denotes the 116 mm diameter reservoir that supplies the water used in the test. A graduated scale on the side of the reservoir allow s the researcher to record the change in water level and hence the volume of flow during the test.
Item # 3 denotes the inflow line from the water supply tub. This hose is plugged when a hydraulic conductivity test is being run.
Item # 4 denotes the 5 gallon overflow bucket which contains the sample and the permeameter base assembly. A steel proctor mold, which is n ot visible in the figure, contains the 116 mm tall by 152 mm diameter compacted specimen being tested. Perforated metal plates, # 100 screens, and filter paper are located at the top and botto m of the specimen. The metal plates confine the specimen in the vertical direction w hile the screens and filter paper prevent the migration of the fines when water flows through the specimen.
Item # 5 denotes the vacuum line that is used when saturating the specimen and filling the water supply reservoir.
A schematic of the device shown in Fig. 3.8 is illustrated in Fig. 3.9 which portrays the relative position of the sample in the device and the head suppli ed to the device through the Marriotte reservoir. The adjustable bubble tube controls the amount of head applied to the test specimen. Prior to starting the test the bubble tube is plugged and water is sucked into the reservoir from the supply tub using a vacuum source. The residual vacuum pressure in the top of the reservoir is equal and opposite to the press ure head created by the column of water suspended above the specimen. When the test is started the bubble tube is unplugged exposing the reservoir to atmospheric pressure at the bubble tube tip. At this point bubbles will enter the reservoir and reduce the vacuum
124
and cause the pressure head on the test specimen to be equal the distance from the tip of the bubble tube to the water level in the 5-gallon bucket. During the test, water flows from the main

125
7) Determination of hydraulic conductivity using Darcy’s Law as shown in Equation 2.14
Q = A × k × i × t (2.14)
Where gradient is:
Hi =
L (2.15)
and: H = equals distance from bottom of bubb le tube to overflow water elevation L = height of the specimen
Equa tion (2.14) can be rearranged as H
Q = A × k × × t
L And hydraulic conductivity is calculated as follows:
Q
k = i ×As × t (3.8)
where: k = hydraulic conductivity, cm/s Q = change in water elevation in reservoir multiplied by net area of reservoir (Ar),
3
cm i = hydraulic gradient As = cross sectional area of specimen, cm 2 Ar = inside cross sectio nal area of reservoir minus the outside cross sectional area
of the bubble tube, cm2
t = time of test, sec
126

VENT/VACUUM PORT
BUBBLE TUBE
MAIN RESERVOIR
WATER INFLOW FROM TUB
H
OVERFLOW
L SPECIMEN
RUBBER COUPLING (TYP)
DRAIN HOLES (TYP)
TAILWATER TUB
PERFORATED METAL PLATE W/
SCREEN & FILTER PAPER, TOP &
BOTTOM OF SPECIMEN
Figure 3.9 – Typical constant head test set-up using the principle of Marriotte’s bottle to
apply head.
Example Hydraulic Conductivity Calculation
A sample from the Sharp’s quarry, which is designated as MB8-2, was tested on
7/13/02. The hand calculations as well as the spreadsheet calculation are shown to
illustrate the procedure for calculating hydraulic conductivity.
In this case, the reservoir reading went from 52.8 cm to 50.3 cm in 100 minutes.
The equation used to calculate hydraulic conductivity is:
Q
k = i×As× t (3.8)
in this case:
AR = ⎡⎢π×⎜⎛ 5.96 ⎟⎞2 − π×⎜⎛ .749 ⎟⎞2 ⎤⎥× ⎢⎣⎡2.54 cm ⎥⎦⎤ 2 = 177.15cm2 ⎢⎝ 2 ⎠⎝ 2 ⎠⎥ in
⎣⎦ ⎡ 2 ⎤ 2
⎛ 6 ⎞⎡ cm⎤ 2
A =π× × 2.54 = 182.41cm
S ⎢⎢ ⎜⎝ 2 ⎟⎠⎥⎥ ⎢⎣ in ⎥⎦
⎣⎦
Q = 2.5 cm × 177.15 cm2 = 442.87 cm3
127
i == .2962
therefore,
k =
.2962×182.41cm2 ×100 min× 60 sec
min k = .00137 cm/sec
Fig. 3.10 presents a data sheet and the total flow versus time regression line used to determine hydraulic conductivity of the same sample MB8-2 from Sharp’s quarry. For values reported in this study, the slope of the regression line for total flow versus time was used to determine hydraulic conductivity based on 10 minute reading intervals rather than the 100 minute interval used in the above example. As a result, the hand calculated value differs slightly from the spreadsheet value.
128
| Sample | MB-8(2) | ||
|---|---|---|---|
| Sharp's quarry, MB-8 | |||
| Date-7/13/02 | Ar = 177.15 cm2 | ||
| As = 182.41 cm2 | |||
| L (inches) = | 4.6250 | ||
| H (inches) = | 1.3700 | ||
| I (gradient) = | 0.2962 | ||
| Time (min) | Reservoir (cm) | Difference (cm) | Interval Flow (cm3) | Total flow (cm3) | Flow Rate (cm3/sec) | Hydraulic Conductivity (cm/sec)* |
|---|---|---|---|---|---|---|
| 0.0 | 52.80 | 0.00 | 0.00 | 0.00 | 0.00 | 0.0000 |
| 10.0 | 52.50 | 0.30 | 53.14 | 53.14 | 0.09 | 0.0016 |
| 20.0 | 52.20 | 0.30 | 53.14 | 106.29 | 0.09 | 0.0016 |
| 30.0 | 52.00 | 0.20 | 35.43 | 141.72 | 0.06 | 0.0011 |
| 40.0 | 51.70 | 0.30 | 53.14 | 194.86 | 0.09 | 0.0016 |
| 50.0 | 51.50 | 0.20 | 35.43 | 230.30 | 0.06 | 0.0011 |
| 60.0 | 51.20 | 0.30 | 53.14 | 283.44 | 0.09 | 0.0016 |
Total Flow (cm3)
300.00
250.00
200.00
150.00
100.00
50.00
0.00

*-k cm/sec based on Total Flow Regression = 1.43E-03 cm/sec
129
In this study the falling head permeameter, shown in Fig. 3.11, was used to determine values of hydraulic conductivity for the upper bound and 10, 12, 14, and 16 percent model blends. The figure shows a falling head – rising tail permeability test setup for two (2) samples from Sharp’s quarry.
Item # 1 in Figure 3.11 denotes the permeameter water supply which flows to the pressure panel via a siphon. Valves on the pressure panel are used to mechanically route the permeant to the appropriate burette.
Item # 2 in the figure denotes the Wykeham Farrance WF 13100 pressure panel used to measure water flow and to apply an inflow head, back pressure head, and confining pressure to the sample tested. The appropriate valves on the pressure panel are opened to fill the vacuum burette (outflow), backpressure (inflow), and chamber (cell) burette with permeant. Direct measurement of the quantity of water supplied to the specimen and the permeameter cell is accomplished by using the graduated scale on the burettes. The pressure panel is also used to apply the appropriate vacuum, backpressure, and cell pressures via an “air over water” arrangement.
Item # 3 in the figure denotes the standard flexible wall permeability cell used to route permeant through the specimen and apply confining pressure. Use of the flexible wall permeability cell minimizes side wall leakage (a problem with the rigid wall permeameter) and allows measurements of the low flows common with samples of low hydraulic conductivities (less than approximately 10 -4 cm/s).
The equipment also allows for back pressure saturation which is normally required to saturate the specimen. Back pressure saturation is used to dissolve any air bubbles inside
130
the sample and fill all the pore spaces with permeant. For this study back pressure saturation with a 450 kPa (65 psi) confining pressure and a 380 kPa (55 psi) pore pressure was used to produce an effective stress of 70 kPa (10 psi) on the test specimen. Since hydraulic conductivity decreases as the effective stress increases, the effective stress should be minimized to replicate field conditions.
131

A schematic of the falling head permeameter used in the study is illustrated in Fig. 132
3.12 which portrays the relative position of the sample in the device and plumbing from the pressure panel.
PERMEABILITY CELL
OUTFLOW LINE FROM TOP CAP
FLEXIBLE MEMBRANE (TYP)
SP ECIMEN OUTFLOW LINE FROM TOP CAP
END CAP W/PERFORATED METALPLATE, SCREEN, & FILTER PAPER Chamber Burette TOP & BOTTOM OF SPECIMEN (Fill cell & confining pressure)
Back Pressure Burette (Inflow)
Vacuum Burette (Outflow)
x- Flow control valves
Figure 3.12 – Schematic diagram of flexible wall permeameter cell used in study.
The inflow water from the backpressure burette flows into the base plate of the permeameter cell and upwards through the specimen. As the water exits the specimen it collects in grooves in the top cap and exits the permeameter via the two (2) tubes from the top cap. The vacuum burette (outflow) is connected to these tubes from the top cap meaning that permeant flow is through the sample from bottom to top.
The cell is initially filled with water and a 5 psi confining pressure is placed on the sample via the chamber burette. Water is forced through the sample from the back pressure burette under a slight head (1-3 psi) until the amount entering the sample equals the amount exiting the sample. This condition exists when the decrease of water in the back pressure burette is equal to the increase in water in the vacuum burette. When this condition is attained back-pressure saturation can begin to insure saturation of the
133
specimen.
Determining the level of saturation for specimens subjected to triaxial testing is of critical importance. Skempton proposed the concept of the pore-pressure coefficients (B value) in his 1954 paper. The equipment used in this test permitted the determination of this B value.
The B value is defined as the ratio of the pore water pressure increase resulting from an increase in confining pressure to the change in confining pressure when no drainage is allowed. For saturated soft soils like clays, the B parameter should equal 1. Skempton stated that in a saturated soil (zero air voids) water is infinitely more incompressible than the soil solids matrix. The degree to which water is more incompressible than the solids structure is seen to be somewhat decreased for more granular materials. In essence, the change in stress applied to a granular specimen will be “carried” to varying amounts by both pore water pressure and stiffness of the solids skeleton.
This concept is reinforced by Skempton’s (1954) own findings. A plot of B value vs. degree of saturation for a clay gravel soil showed that at approximately 95 percent saturation the B values obtained are approximately 85 percent. It is interesting to note that the clay gravel material tested has a maximum dry density of 136 lbs/ft3 and an optimum water content of 7.8 percent. The liquid limit and plasticity index were 17 and 2, respectively. Since these values are very similar to those obtained for the crushed stone base course aggregate tested in this study, a target B-value of 0.85 or greater was chosen for this study.
A complete step by step pictorial illustrating the assembly of the device and test
134
procedure used is presented in Appendix B.2. In general terms, the sequence consisted
of:
1) Preparation of the blend in accordance with the percentage of fines being
tested
2) Compaction of the material in a flexible membrane using a split mold
3) Assembly of the flexible wall permeability cell
4) Attachment of the lines from the pressure panel which control vacuum pressure, backpressure, and cell pressure 5) Subjecting the sample to backpressure saturation
6) Obtaining an appropriate B value and running the falling head-rising tail hydraulic conductivity test. 7) Determination of hydraulic conductivity using Equation 3.4
⎛ ain × aout ×L ⎞⎛ h1 ⎞k = ⎜⎜⎝ (ain + aout )× As ×∆t ⎟⎟⎠×ln⎜⎜⎝ h2 ⎟⎟⎠ (3.9)
where:
k = hydraulic conductivity, cm/s
a in = cross sectional area of inflow burette , cm2
a out = cross sectional area of outflow burette, cm2
L = length of specimen, cm
As = cross sectional area of specimen, cm2
∆t = interval of time over which flow occurs, sec
h1 = head difference at start of test, cm
h2 = head difference at end of test, cm
Example Hydraulic Conductivity Calculation
135
Sharp’s quarry sample MB10-1 was tested on 8/8/02. The recorded data was h1 = 100, h2 = 37.6 , ∆t = 50 min. The burettes used in this study were graduated such that 1 cm of the burette’s length contained 1.675 ml of permeant.
k = ⎛⎜⎜ ain × aout ×L ⎞⎟⎟×ln⎛⎜⎜ h1 ⎞⎟⎟ ⎝ (ain + aout )× As ×∆t ⎠⎝ h2 ⎠ (3.9)
where: a in = a out = 1.67 cm2
AS = ⎡⎢π×⎜⎛ 6 ⎟⎞2 ⎤⎥× ⎡2.54 cm⎤2 =182.41cm2
⎢⎝ 2 ⎠ ⎥⎦ ⎢⎣ in ⎥⎦
⎣
L = 4 in x 2.54 cm/in = 10.16 cm
Solving for k:
k = ⎛⎜⎜ 1.67 cm2 ×1.67 cm22 ×10.16 cm ⎞⎟⎟× ln⎛⎜ 100 ml ⎞⎟ ⎝ (1.67 cm +1.67 cm) ×182.41cm × 50 min × 60 sec/mint ⎠⎝ 37.6 ml ⎠
= .00001516 cm/sec (.0000152 as per spreadsheet)
Fig 3.13 presents the data sheet used to determine the hydraulic conductivity of MB10-1 class 7 base course from Sharp’s quarry. A calculator or computer program must be available on site to solve Eq. (3.8) as the test is being run. The specimen should be permeated until at least four (4) values of hydraulic conductivity are obtained over an interval of time in which: the ratio of the inflow to outflow is between 0.75 and 1.25 and the hydraulic conductivity is steady. In this study, the ratio of inflow to outflow was approximately 1.0 for all tests. Steady state flow conditions were assumed when four (4) or more values of hydraulic conductivity were within 50% of each other and a plot of
136
hydraulic conductivity versus time showed no significant upward or downward trend.
3.12 Suction Testing
Two (2) replicate samples of the model gradations with 6, 8, 10, 12, 14, and 16 percent fines were created. Each sample was compacted at optimum moisture to 98 percent of maximum dry density as determined by the modified proctor using a Marshall compaction hammer. Standard plastic concrete cylinder molds (152.4 mm diameter by
304.8 mm tall) were used to contain the samples used in the test. In addition to the model blends replicate specimens of the lower bound gradation with 6 percent fines and the upper bound gradation with 10 percent fines were created to bring the total number of tube suction test specimens to fourteen (14) per quarry.
Sample -MB-10(1) ain=aout=1.67cm2
Sharp's quarry As = 182.41 cm2
L = 10.16 cm
SATURATION
| START DATE | CHAMBER | PORE | VACUUM |
| PRESSURE | BURRETTE | BURRETTE | |
| (psi) | PRESSURE (psi) | PRESSURE (psi) | |
| 8/5/02 | 10 | 0 | 0 |
| 8/5/02 | 65 | 55 | 55 |
PERMEATION
| START DATE | ELAPSED TIME (minutes) | OUTFLOW (ml, Vac Bur) | INFLOW (ml, B-P Bur) | INFLOW (ml, Cham Bur) | H1(Intial head diff) | H2(Final head diff) | k |
|---|---|---|---|---|---|---|---|
| 8/8/02 | 0.00 | 100.0 | 0.0 | 0.0 | 100.0 | ||
| B=4.5/5 =.90 | 50.00 | 68.8 | 31.2 | 0.0 | 37.6 | 1.52E-05 |
137
To allow water to enter the sample, 12-6.5 mm diameter holes were drilled on approximately 38 mm centers around the base of the mold. The inlet holes were approximately 25 mm from the base of the molds.
The samples were placed in tubs which contained approximately 50 mm of water for soaking. The samples were removed and weighed at intervals of 1 hr, 2 hrs, 4 hrs, 24 hrs, 48 hrs, 96 hrs, 120 hrs, 144 hrs, 168 hrs, 192 hrs, 216 hrs, and 240 hrs. A graph relating the percent of moisture gain versus the square root of time was plotted for each sample blend. Figure 3.14 shows the general setup of the suction test.

Figure 3.14- Suction test samples from Sharp’s quarry in water bath . Due to problems with testing which will be describe in more detail in Chapter 4, the test procedure was modified throughout the study to assure more uniform conditions.
138
The test procedure used for Glen Rose and Granite Mountain quarries is described
below.
Test procedure (Glen Rose and Granite Mountain quarries)
139







conductivity of replicate samples are plotted against the percentage of fines for the quarries studied and a hand drawn trend line was inserted. Between 6 and 10 percent fines, the hydraulic conductivity changes approximately 1 order of magnitude for each 1 percent change in fines. However, above fines contents of 10 percent the hydraulic conductivity changes by less than 1 order of magnitude for the entire 6 percent change in fines. This suggests that the decrease in hydraulic conductivity for fine contents greater than about 10 percent is relatively insignificant. In agreement with theory and earlier research, Fig. 4.4 clearly demonstrates that the hydraulic conductivity of granular base course decreases as the percentage of fines increases.
It was noted that material from Granite Mountain had consistently lower hydraulic conductivities than other quarries while material from Glen Rose had consistently higher hydraulic conductivities than the other quarries. In an effort to investigate this trend, the grain size distribution curves for these quarries were compared as shown in Fig 4.5.
It should be kept in mind that these grain size distribution curves were developed by the wet sieving procedure and the material was handled multiple times prior to reaching ERC. As a result, it was expected that the percent of fines could be falsely elevated for the “as received” material. When comparing these two quarries it was found that material passing the # 200 sieve was 7.16 percent for Glen Rose quarry and 11.85 percent for Granite Mountain quarry.
An inspection of the data presented in Fig. 4.5, with emphasis placed on material larger than the # 40 sieve, reveals that the material from Granite Mountain quarry is somewhat “finer” than that from Glen Rose quarry. This finer material would result in smaller void space, and hence decreased hydraulic conductivity.
146
























































The model blend gradation data used to generate Figs. 4.26 through 4.40 along with statistical parameters is presented by quarry in Tables 4.12 through 4.16. The maximum, minimum, average, and deviation from overall mean for each of the parameters analyzed (φ, c, and τ) were calculated. The mean angle of internal friction, φ, values for each quarry ranged from 40.6 (Preston) to 43.3 (Black Rock). Within the individual quarries the deviation from the overall mean was never more than 4 degrees over the range of blends tested. The average deviation from the quarry mean values was more typically on the order of 1.5 to 2 degrees.
203














































Figure B.1.1 – Pictorial sequence demonstrating assembly of constant head permeameter
249















Appendix B.3
Specimen Blending
265
Table B.3.1: Sharps quarry triaxial specimen blending. Table B.3.2: Preston quarry triaxial specimen blending. Table B.3.3: Black Rock quarry triaxial specimen blending. Table B.3.4: Glen Rose quarry triaxial specimen blending. Table B.3.5: Granite Mountain quarry triaxial specimen blending.
| % Passing | |||
|---|---|---|---|
| Size | Lower bound | Model Gradation | Upper bound |
| 1-1/2" | 100 | 100 | 100 |
| 3/4" | 50 | 81 | 90 |
| #4 | 25 | 43 | 55 |
| #40 | 10 | 18 | 30 |
| #200 | 6 | Varried | 10 |
| PAN | 0 | 0 | 0 |
| γd, max (pcf) | 141.0 |
| 98% γd, max (pcf) | 138.2 |
| Mold Dia (in) | 6 |
| Mold Ht.(in) | 12 |
| Mold Vol (cf) | 0.1963 |
| Material/sample (lb) | 27.13 |
| OMC (%) | 5.5 |
| Lower Bound Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 27.13 | Upper Bound Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 27.13 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 50 | 6153.1 | 3/4" | 10 | 1230.6 | ||
| #4 | 25 | 3076.5 | #4 | 35 | 4307.2 | ||
| #40 | 15 | 1845.9 | #40 | 25 | 3076.5 | ||
| #200 | 4 | 492.2 | #200 | 20 | 2461.2 | ||
| Pan | 6 | 738.4 | Pan | 10 | 1230.6 | ||
| Model Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 27.13 | Model Blend: 12% Fines | Est. Total Sample Wt. (lbs) | 27.13 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2338.2 | 3/4" | 19 | 2338.2 | ||
| #4 | 38 | 4676.3 | #4 | 38 | 4676.3 | ||
| #40 | 25 | 3076.5 | #40 | 25 | 3076.5 | ||
| #200 | 12 | 1476.7 | #200 | 6 | 738.4 | ||
| Pan | 6 | 738.4 | Pan | 12 | 1476.7 | ||
| Model Blend: 8% Fines | Est. Total Sample Wt. (lbs) | 27.13 | Model Blend: 14% Fines | Est. Total Sample Wt. (lbs) | 27.13 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2338.2 | 3/4" | 19 | 2338.2 | ||
| #4 | 38 | 4676.3 | #4 | 38 | 4676.3 | ||
| #40 | 25 | 3076.5 | #40 | 25 | 3076.5 | ||
| #200 | 10 | 1230.6 | #200 | 4 | 492.2 | ||
| Pan | 8 | 984.5 | Pan | 14 | 1722.9 | ||
| Model Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 27.13 | Model Blend: 16% Fines | Est. Total Sample Wt. (lbs) | 27.13 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2338.2 | 3/4" | 19 | 2338.2 | ||
| #4 | 38 | 4676.3 | #4 | 38 | 4676.3 | ||
| #40 | 25 | 3076.5 | #40 | 25 | 3076.5 | ||
| #200 | 8 | 984.5 | #200 | 2 | 246.1 | ||
| Pan | 10 | 1230.6 | Pan | 16 | 1969.0 | ||
| % Passing | |||
|---|---|---|---|
| Size | Lower bound | Model Gradation | Upper bound |
| 1-1/2" | 100 | 100 | 100 |
| 3/4" | 50 | 75 | 90 |
| #4 | 25 | 35 | 55 |
| #40 | 10 | 18 | 30 |
| #200 | 6 | Varried | 10 |
| PAN | 0 | 0 | 0 |
| γd, max (pcf) | 132.0 |
| 98% γd, max (pcf) | 129.4 |
| Mold Dia (in) | 6 |
| Mold Ht.(in) | 12 |
| Mold Vol (cf) | 0.1963 |
| Material/sample (lb) | 25.40 |
| OMC (%) | 7.5 |
| Lower Bound Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 25.40 | Upper Bound Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 25.40 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 50 | 5760.7 | 3/4" | 10 | 1152.1 | ||
| #4 | 25 | 2880.4 | #4 | 35 | 4032.5 | ||
| #40 | 15 | 1728.2 | #40 | 25 | 2880.4 | ||
| #200 | 4 | 460.9 | #200 | 20 | 2304.3 | ||
| Pan | 6 | 691.3 | Pan | 10 | 1152.1 | ||
| Model Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 25.40 | Model Blend: 12% Fines | Est. Total Sample Wt. (lbs) | 25.40 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 25 | 2880.4 | 3/4" | 25 | 2880.4 | ||
| #4 | 40 | 4608.6 | #4 | 40 | 4608.6 | ||
| #40 | 18 | 2073.9 | #40 | 14 | 1613.0 | ||
| #200 | 11 | 1267.4 | #200 | 9 | 1036.9 | ||
| Pan | 6 | 691.3 | Pan | 12 | 1382.6 | ||
| Model Blend: 8% Fines | Est. Total Sample Wt. (lbs) | 25.40 | Model Blend: 14% Fines | Est. Total Sample Wt. (lbs) | 25.40 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 25 | 2880.4 | 3/4" | 25 | 2880.4 | ||
| #4 | 40 | 4608.6 | #4 | 40 | 4608.6 | ||
| #40 | 17 | 1958.6 | #40 | 13 | 1497.8 | ||
| #200 | 10 | 1152.1 | #200 | 8 | 921.7 | ||
| Pan | 8 | 921.7 | Pan | 14 | 1613.0 | ||
| Model Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 25.40 | Model Blend: 16% Fines | Est. Total Sample Wt. (lbs) | 25.40 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 25 | 2880.4 | 3/4" | 25 | 2880.4 | ||
| #4 | 40 | 4608.6 | #4 | 40 | 4608.6 | ||
| #40 | 15 | 1728.2 | #40 | 11 | 1267.4 | ||
| #200 | 10 | 1152.1 | #200 | 8 | 921.7 | ||
| Pan | 10 | 1152.1 | Pan | 16 | 1843.4 | ||
| % Passing | |||
|---|---|---|---|
| Size | Lower bound | Model Gradation | Upper bound |
| 1-1/2" | 100 | 100 | 100 |
| 3/4" | 50 | 81 | 90 |
| #4 | 25 | 35 | 55 |
| #40 | 10 | 18 | 30 |
| #200 | 6 | Varried | 10 |
| PAN | 0 | 0 | 0 |
| γd, max (pcf) | 144.0 |
| 98% γd, max (pcf) | 141.1 |
| Mold Dia (in) | 6 |
| Mold Ht.(in) | 12 |
| Mold Vol (cf) | 0.1963 |
| Material/sample (lb) | 27.71 |
| OMC (%) | 6.5 |
| Lower Bound Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 27.71 | Upper Bound Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 27.71 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 50 | 6284.6 | 3/4" | 10 | 1256.9 | ||
| #4 | 25 | 3142.3 | #4 | 35 | 4399.2 | ||
| #40 | 15 | 1885.4 | #40 | 25 | 3142.3 | ||
| #200 | 4 | 502.8 | #200 | 20 | 2513.9 | ||
| Pan | 6 | 754.2 | Pan | 10 | 1256.9 | ||
| Model Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 27.71 | Model Blend: 12% Fines | Est. Total Sample Wt. (lbs) | 27.71 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2388.2 | 3/4" | 19 | 2388.2 | ||
| #4 | 46 | 5781.9 | #4 | 46 | 5781.9 | ||
| #40 | 17 | 2136.8 | #40 | 17 | 2136.8 | ||
| #200 | 12 | 1508.3 | #200 | 6 | 754.2 | ||
| Pan | 6 | 754.2 | Pan | 12 | 1508.3 | ||
| Model Blend: 8% Fines | Est. Total Sample Wt. (lbs) | 27.71 | Model Blend: 14% Fines | Est. Total Sample Wt. (lbs) | 27.71 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2388.2 | 3/4" | 19 | 2388.2 | ||
| #4 | 46 | 5781.9 | #4 | 46 | 5781.9 | ||
| #40 | 17 | 2136.8 | #40 | 17 | 2136.8 | ||
| #200 | 10 | 1256.9 | #200 | 4 | 502.8 | ||
| Pan | 8 | 1005.5 | Pan | 14 | 1759.7 | ||
| Model Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 27.71 | Model Blend: 16% Fines | Est. Total Sample Wt. (lbs) | 27.71 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2388.2 | 3/4" | 19 | 2388.2 | ||
| #4 | 46 | 5781.9 | #4 | 46 | 5781.9 | ||
| #40 | 17 | 2136.8 | #40 | 17 | 2136.8 | ||
| #200 | 8 | 1005.5 | #200 | 2 | 251.4 | ||
| Pan | 10 | 1256.9 | Pan | 16 | 2011.1 | ||
| % Passing | |||
|---|---|---|---|
| Size | Lower bound | Model Gradation | Upper bound |
| 1-1/2" | 100 | 100 | 100 |
| 3/4" | 50 | 86 | 90 |
| #4 | 25 | 47 | 55 |
| #40 | 10 | 20 | 30 |
| #200 | 6 | Varried | 10 |
| PAN | 0 | 0 | 0 |
| γd, max (pcf) | 135.0 |
| 98% γd, max (pcf) | 132.3 |
| Mold Dia (in) | 6 |
| Mold Ht.(in) | 12 |
| Mold Vol (cf) | 0.1963 |
| Material/sample (lb) | 25.98 |
| OMC (%) | 6.0 |
| Lower Bound Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 25.98 | Upper Bound Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 25.98 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 50 | 5892.3 | 3/4" | 10 | 1178.5 | ||
| #4 | 25 | 2946.1 | #4 | 35 | 4124.6 | ||
| #40 | 15 | 1767.7 | #40 | 25 | 2946.1 | ||
| #200 | 4 | 471.4 | #200 | 20 | 2356.9 | ||
| Pan | 6 | 707.1 | Pan | 10 | 1178.5 | ||
| Model Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 25.98 | Model Blend: 12% Fines | Est. Total Sample Wt. (lbs) | 25.98 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 14 | 1649.8 | 3/4" | 14 | 1649.8 | ||
| #4 | 39 | 4596.0 | #4 | 39 | 4596.0 | ||
| #40 | 27 | 3181.8 | #40 | 27 | 3181.8 | ||
| #200 | 14 | 1649.8 | #200 | 8 | 942.8 | ||
| Pan | 6 | 707.1 | Pan | 12 | 1414.1 | ||
| Model Blend: 8% Fines | Est. Total Sample Wt. (lbs) | 25.98 | Model Blend: 14% Fines | Est. Total Sample Wt. (lbs) | 25.98 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 14 | 1649.8 | 3/4" | 14 | 1649.8 | ||
| #4 | 39 | 4596.0 | #4 | 39 | 4596.0 | ||
| #40 | 27 | 3181.8 | #40 | 27 | 3181.8 | ||
| #200 | 12 | 1414.1 | #200 | 6 | 707.1 | ||
| Pan | 8 | 942.8 | Pan | 14 | 1649.8 | ||
| Model Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 25.98 | Model Blend: 16% Fines | Est. Total Sample Wt. (lbs) | 25.98 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 14 | 1649.8 | 3/4" | 14 | 1649.8 | ||
| #4 | 39 | 4596.0 | #4 | 39 | 4596.0 | ||
| #40 | 27 | 3181.8 | #40 | 27 | 3181.8 | ||
| #200 | 10 | 1178.5 | #200 | 4 | 471.4 | ||
| Pan | 10 | 1178.5 | Pan | 16 | 1885.5 | ||
| % Passing | |||
|---|---|---|---|
| Size | Lower bound | Model Gradation | Upper bound |
| 1-1/2" | 100 | 100 | 100 |
| 3/4" | 50 | 81 | 90 |
| #4 | 25 | 45 | 55 |
| #40 | 10 | 18 | 30 |
| #200 | 6 | Varried | 10 |
| PAN | 0 | 0 | 0 |
| γd, max (pcf) | 134.2 |
| 98% γd, max (pcf) | 131.5 |
| Mold Dia (in) | 6 |
| Mold Ht.(in) | 12 |
| Mold Vol (cf) | 0.1963 |
| Material/sample (lb) | 25.82 |
| OMC (%) | 7.5 |
| Lower Bound Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 25.82 | Upper Bound Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 25.82 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 50 | 5856.0 | 3/4" | 10 | 1171.2 | ||
| #4 | 25 | 2928.0 | #4 | 35 | 4099.2 | ||
| #40 | 15 | 1756.8 | #40 | 25 | 2928.0 | ||
| #200 | 4 | 468.5 | #200 | 20 | 2342.4 | ||
| Pan | 6 | 702.7 | Pan | 10 | 1171.2 | ||
| Model Blend: 6% Fines | Est. Total Sample Wt. (lbs) | 25.82 | Model Blend: 12% Fines | Est. Total Sample Wt. (lbs) | 25.82 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2225.3 | 3/4" | 19 | 2225.3 | ||
| #4 | 36 | 4216.3 | #4 | 36 | 4216.3 | ||
| #40 | 27 | 3162.2 | #40 | 27 | 3162.2 | ||
| #200 | 12 | 1405.4 | #200 | 6 | 702.7 | ||
| Pan | 6 | 702.7 | Pan | 12 | 1405.4 | ||
| Model Blend: 8% Fines | Est. Total Sample Wt. (lbs) | 25.82 | Model Blend: 14% Fines | Est. Total Sample Wt. (lbs) | 25.82 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2225.3 | 3/4" | 19 | 2225.3 | ||
| #4 | 36 | 4216.3 | #4 | 36 | 4216.3 | ||
| #40 | 27 | 3162.2 | #40 | 27 | 3162.2 | ||
| #200 | 10 | 1171.2 | #200 | 4 | 468.5 | ||
| Pan | 8 | 937.0 | Pan | 14 | 1639.7 | ||
| Model Blend: 10% Fines | Est. Total Sample Wt. (lbs) | 25.82 | Model Blend: 16% Fines | Est. Total Sample Wt. (lbs) | 25.82 | ||
|---|---|---|---|---|---|---|---|
| Size | % Retained per sieve | Weight Material Ret. (g) | Size | % Retained per sieve | Weight Material Ret. (g) | ||
| 3/4" | 19 | 2225.3 | 3/4" | 19 | 2225.3 | ||
| #4 | 36 | 4216.3 | #4 | 36 | 4216.3 | ||
| #40 | 27 | 3162.2 | #40 | 27 | 3162.2 | ||
| #200 | 8 | 937.0 | #200 | 2 | 234.2 | ||
| Pan | 10 | 1171.2 | Pan | 16 | 1873.9 | ||











































| Sample | CB-6(1) | ||
|---|---|---|---|
| Preston quarry, CB-6 | |||
| Date12/28/02 | Ar = 177.15 cm2 | ||
| As = 182.41 cm2 | |||
| L (inches) = | 4.6250 | ||
| H (inches) = | 1.5000 | ||
| I (gradient) = | 0.3243 | ||
| Time (min) | Reservoir (cm) | Difference (cm) | Interval Flow (cm3) | Total flow (cm3) | Flow Rate (cm3/sec) | Hydraulic Conductivity (cm/sec)* |
|---|---|---|---|---|---|---|
| 0.0 | 54.80 | 0.00 | 0.00 | 0.00 | 0.00 | 0.0000 |
| 10.0 | 49.60 | 5.20 | 921.18 | 921.18 | 1.54 | 0.0260 |
| 20.0 | 44.90 | 4.70 | 832.61 | 1753.79 | 1.39 | 0.0235 |
| 30.0 | 40.40 | 4.50 | 797.18 | 2550.96 | 1.33 | 0.0225 |
| 40.0 | 35.60 | 4.80 | 850.32 | 3401.28 | 1.42 | 0.0240 |
Total Flow (cm3)
4000.00
3500.00
3000.00
2500.00
2000.00
1500.00
1000.00
500.00
0.00

*-k cm/sec based on Total Flow Regression = 2.38E-02
314





















APPENDIX D
Suction test result of the class 7 base material coming from the Black Rock Glen Rose, Preston, Sharp’s, and Granite Mountain quarries
336
| SUCTION TEST - BLACK ROCK Start date: 4/11/2003 | TIME | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SAMPLE | dry wt.(g) | 1HR weight(g) | % H20 | 2HR weight(g) | % H20 | 4HR weight(g) | % H20 | 24HR weight(g) | % H20 | 2 DAYS weight(g) | % H20 | 3 DAYS weight(g) | % H20 | 4 DAYS weight(g) |
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 12652 | 12718 | 0.522 | 12736 | 0.664 | 12759 | 0.846 | 12857 | 1.616 | 12954 | 2.387 | 13019 | 2.901 | 13082 |
| 12597.00 | 12664.00 | 0.53 | 12681.00 | 0.67 | 12706.00 | 0.87 | 12816.50 | 1.74 | 12927.00 | 2.62 | 12998.00 | 3.18 | 13062.00 |
| 12545.00 | 12649.00 | 0.83 | 12671.00 | 1.00 | 12700.00 | 1.24 | 12815.50 | 2.16 | 12931.00 | 3.08 | 13003.00 | 3.65 | 13062.00 |
| 12630.00 | 12706.00 | 0.60 | 12726.00 | 0.76 | 12751.00 | 0.96 | 12852.50 | 1.76 | 12954.00 | 2.57 | 13023.00 | 3.11 | 13093.00 |
| 12551.00 | 12677.00 | 1.00 | 12698.00 | 1.17 | 12724.00 | 1.38 | 12837.00 | 2.28 | 12950.00 | 3.18 | 13026.00 | 3.78 | 13073.00 |
| 12572.00 | 12669.00 | 0.77 | 12685.00 | 0.90 | 12712.00 | 1.11 | 12826.50 | 2.02 | 12941.00 | 2.94 | 13010.00 | 3.48 | 13067.00 |
| 12550.00 | 12630.00 | 0.64 | 12653.00 | 0.82 | 12683.00 | 1.06 | 12794.00 | 1.94 | 12905.00 | 2.83 | 12976.00 | 3.39 | 13041.00 |
| 12523.00 | 12613.00 | 0.72 | 12637.00 | 0.91 | 12667.00 | 1.15 | 12775.50 | 2.02 | 12884.00 | 2.88 | 12953.00 | 3.43 | 13014.00 |
| 12642.00 | 12694.00 | 0.41 | 12711.00 | 0.55 | 12733.00 | 0.72 | 12814.50 | 1.36 | 12896.00 | 2.01 | 12950.00 | 2.44 | 13006.00 |
| 12767.00 | 12824.00 | 0.45 | 12838.00 | 0.56 | 12856.00 | 0.70 | 12928.00 | 1.26 | 13000.00 | 1.83 | 13049.00 | 2.21 | 13099.00 |
| 12552.00 | 12634.00 | 0.65 | 12657.00 | 0.84 | 12682.00 | 1.04 | 12789.00 | 1.89 | 12896.00 | 2.74 | 12963.00 | 3.27 | 13028.00 |
| 12613.00 | 12700.00 | 0.69 | 12715.00 | 0.81 | 12733.00 | 0.95 | 12816.50 | 1.61 | 12900.00 | 2.28 | 12952.00 | 2.69 | 13006.00 |
| 11396.00 | 11577.00 | 1.59 | 11578.00 | 1.60 | 11587.00 | 1.68 | 11645.50 | 2.19 | 11704.00 | 2.70 | 11750.00 | 3.11 | 11776.00 |
| 11990.00 | 12088.00 | 0.82 | 12103.00 | 0.94 | 12127.00 | 1.14 | 12229.50 | 2.00 | 12332.00 | 2.85 | 12401.00 | 3.43 | 12472.00 |
337
| TIME | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 DAYS | 6 DAYS | 7 DAYS | 8 DAYS | 9 DAYS | 10 DAYS | |||||||
| SAMPLE | weight(g) | % H20 | weight(g) | % H20 | weight(g) | % H20 | weight(g) | % H20 | weight(g) | % H20 | weight(g) | % H20 |
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 13120.00 | 3.70 | 13148.00 | 3.92 | 13154.00 | 3.97 | 13161.00 | 4.02 | 13168.00 | 4.08 | 13172.00 | 4.11 |
| 13071.00 | 3.76 | 13083.00 | 3.86 | 13085.00 | 3.87 | 13089.00 | 3.91 | 13095.00 | 3.95 | 13098.00 | 3.98 |
| 13069.00 | 4.18 | 13078.00 | 4.25 | 13081.00 | 4.27 | 13083.00 | 4.29 | 13090.00 | 4.34 | 13093.00 | 4.37 |
| 13125.00 | 3.92 | 13146.00 | 4.09 | 13153.00 | 4.14 | 13155.00 | 4.16 | 13161.00 | 4.20 | 13165.00 | 4.24 |
| 13075.00 | 4.17 | 13084.00 | 4.25 | 13086.00 | 4.26 | 13087.00 | 4.27 | 13094.00 | 4.33 | 13096.00 | 4.34 |
| 13084.00 | 4.07 | 13096.00 | 4.17 | 13100.00 | 4.20 | 13103.00 | 4.22 | 13109.00 | 4.27 | 13112.00 | 4.30 |
| 13078.00 | 4.21 | 13099.00 | 4.37 | 13107.00 | 4.44 | 13112.00 | 4.48 | 13118.00 | 4.53 | 13121.00 | 4.55 |
| 13041.00 | 4.14 | 13053.00 | 4.23 | 13059.00 | 4.28 | 13065.00 | 4.33 | 13072.00 | 4.38 | 13075.00 | 4.41 |
| 13041.00 | 3.16 | 13085.00 | 3.50 | 13107.00 | 3.68 | 13121.00 | 3.79 | 13129.00 | 3.85 | 13133.00 | 3.88 |
| 13133.00 | 2.87 | 13176.00 | 3.20 | 13201.00 | 3.40 | 13216.00 | 3.52 | 13225.00 | 3.59 | 13229.00 | 3.62 |
| 13069.00 | 4.12 | 13109.00 | 4.44 | 13117.00 | 4.50 | 13129.00 | 4.60 | 13135.00 | 4.64 | 13139.00 | 4.68 |
| 13042.00 | 3.40 | 13085.00 | 3.74 | 13107.00 | 3.92 | 13121.00 | 4.03 | 13129.00 | 4.09 | 13133.00 | 4.12 |
| 11785.00 | 3.41 | 11789.00 | 3.45 | 11795.00 | 3.50 | 11797.00 | 3.52 | 11797.00 | 3.52 | 11798.00 | 3.53 |
| 12509.00 | 4.33 | 12535.00 | 4.55 | 12541.00 | 4.60 | 12543.00 | 4.61 | 12545.00 | 4.63 | 12547.00 | 4.65 |
338
| Start date: 8/7/2003 SUCTION TEST - GLEN ROSE | TIME | |||||
|---|---|---|---|---|---|---|
| 1HR | 2HR | 4HR | 24HR | 2 DAYS | 3 DAYS | 4 DAYS |
SAMPLE dry wt.(g) % H20 % H20 % H20 % H20 % H20 % H20 % H20
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 11554.00 | 11619.00 | 0.56 | 11638.00 | 0.73 | 11647.00 | 0.80 | 11723.00 | 1.46 | 11785.00 | 2.00 | 11829.00 | 2.38 | 11873.00 | 2.76 |
| 11189.00 | 11262.00 | 0.65 | 11272.00 | 0.74 | 11283.00 | 0.84 | 11355.00 | 1.48 | 11417.00 | 2.04 | 11458.50 | 2.41 | 11500.00 | 2.78 |
| 11083.00 | 11160.00 | 0.69 | 11175.00 | 0.83 | 11192.00 | 0.98 | 11275.00 | 1.73 | 11345.00 | 2.36 | 11381.00 | 2.69 | 11417.00 | 3.01 |
| 11187.00 | 11267.00 | 0.72 | 11280.00 | 0.83 | 11292.00 | 0.94 | 11363.00 | 1.57 | 11430.00 | 2.17 | 11474.00 | 2.57 | 11518.00 | 2.96 |
| 11097.00 | 11183.00 | 0.77 | 11204.00 | 0.96 | 11214.00 | 1.05 | 11291.00 | 1.75 | 11355.00 | 2.32 | 11401.50 | 2.74 | 11448.00 | 3.16 |
| 11202.00 | 11280.00 | 0.70 | 11302.00 | 0.89 | 11315.00 | 1.01 | 11390.00 | 1.68 | 11449.00 | 2.20 | 11491.00 | 2.58 | 11533.00 | 2.95 |
| 11444.00 | 11530.00 | 0.75 | 11548.00 | 0.91 | 11569.00 | 1.09 | 11653.00 | 1.83 | 11711.00 | 2.33 | 11750.00 | 2.67 | 11789.00 | 3.01 |
| 11371.00 | 11438.00 | 0.59 | 11452.00 | 0.71 | 11463.00 | 0.81 | 11541.00 | 1.50 | 11604.00 | 2.05 | 11645.00 | 2.41 | 11686.00 | 2.77 |
| 10865.00 | 10953.00 | 0.81 | 10984.00 | 1.10 | 11009.00 | 1.33 | 11118.00 | 2.33 | 11188.00 | 2.97 | 11201.00 | 3.09 | 11214.00 | 3.21 |
| 11249.00 | 11368.00 | 1.06 | 11384.00 | 1.20 | 11413.00 | 1.46 | 11499.00 | 2.22 | 11564.00 | 2.80 | 11604.50 | 3.16 | 11645.00 | 3.52 |
| 11023.00 | 11104.00 | 0.73 | 11124.00 | 0.92 | 11158.00 | 1.22 | 11264.00 | 2.19 | 11327.00 | 2.76 | 11352.00 | 2.98 | 11377.00 | 3.21 |
| 10663.00 | 10759.00 | 0.90 | 10775.00 | 1.05 | 10804.00 | 1.32 | 10891.00 | 2.14 | 10959.00 | 2.78 | 10989.00 | 3.06 | 11019.00 | 3.34 |
| 10372.00 | 10482.00 | 1.06 | 10511.00 | 1.34 | 10530.00 | 1.52 | 10611.00 | 2.30 | 10651.00 | 2.69 | 10658.00 | 2.76 | 10665.00 | 2.82 |
| 10859.00 | 10928.00 | 0.64 | 10947.00 | 0.81 | 10960.00 | 0.93 | 11020.00 | 1.48 | 11070.00 | 1.94 | 11105.50 | 2.27 | 11141.00 | 2.60 |
339
TIME
5 DAYS 6 DAYS 7 DAYS 8 DAYS 9 DAYS 10 DAYS SAMPLE % H20 % H20 % H20 % H20 % H20 % H20
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 11910.00 | 3.08 | 11905.00 | 3.04 | 11931.00 | 3.26 | 11928.00 | 3.24 | 11934.00 | 3.29 | 11938.80 | 3.33 |
| 11539.00 | 3.13 | 11529.00 | 3.04 | 11555.00 | 3.27 | 11558.00 | 3.30 | 11545.00 | 3.18 | 11534.60 | 3.09 |
| 11432.00 | 3.15 | 11429.00 | 3.12 | 11434.00 | 3.17 | 11434.00 | 3.17 | 11440.00 | 3.22 | 11444.80 | 3.26 |
| 11543.00 | 3.18 | 11546.00 | 3.21 | 11554.00 | 3.28 | 11556.00 | 3.30 | 11560.00 | 3.33 | 11563.20 | 3.36 |
| 11460.00 | 3.27 | 11464.00 | 3.31 | 11476.00 | 3.42 | 11475.00 | 3.41 | 11483.00 | 3.48 | 11489.40 | 3.54 |
| 11550.00 | 3.11 | 11554.00 | 3.14 | 11561.00 | 3.20 | 11562.00 | 3.21 | 11567.00 | 3.26 | 11571.00 | 3.29 |
| 11805.00 | 3.15 | 11812.00 | 3.22 | 11817.00 | 3.26 | 11820.00 | 3.29 | 11827.00 | 3.35 | 11832.60 | 3.40 |
| 11706.00 | 2.95 | 11713.00 | 3.01 | 11722.00 | 3.09 | 11726.00 | 3.12 | 11734.00 | 3.19 | 11740.40 | 3.25 |
| 11223.00 | 3.29 | 11230.00 | 3.36 | 11232.00 | 3.38 | 11235.00 | 3.41 | 11239.00 | 3.44 | 11242.20 | 3.47 |
| 11656.00 | 3.62 | 11662.00 | 3.67 | 11667.00 | 3.72 | 11671.00 | 3.75 | 11676.00 | 3.80 | 11680.00 | 3.83 |
| 11383.00 | 3.27 | 11391.00 | 3.34 | 11395.00 | 3.37 | 11395.00 | 3.37 | 11409.00 | 3.50 | 11420.20 | 3.60 |
| 11026.00 | 3.40 | 11030.00 | 3.44 | 11035.00 | 3.49 | 11039.00 | 3.53 | 11045.00 | 3.58 | 11049.80 | 3.63 |
| 10672.00 | 2.89 | 10675.00 | 2.92 | 10681.00 | 2.98 | 10681.00 | 2.98 | 10688.00 | 3.05 | 10693.60 | 3.10 |
| 11181.00 | 2.97 | 11211.00 | 3.24 | 11225.00 | 3.37 | 11233.00 | 3.44 | 11250.00 | 3.60 | 11263.60 | 3.73 |
340
| Start date: 1/2/2004 SUCTION TEST - GMQ | TIME | ||||||
|---|---|---|---|---|---|---|---|
| 1HR | 2HR | 4HR | 24HR | 2 DAYS | 3 DAYS | 4 DAYS | |
SAMPLE dry wt.(g) % H20 % H20 % H20 % H20 % H20 % H20
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 11118.00 | 11310.00 | 1.73 | 11342.00 | 2.01 | 11376.00 | 2.32 | 11590.00 | 4.25 | 11696.00 | 5.20 | 11718.00 | 5.40 | 11733.00 |
| 11214.00 | 11392.00 | 1.59 | 11433.00 | 1.95 | 11479.00 | 2.36 | 11703.00 | 4.36 | 11792.00 | 5.15 | 11793.00 | 5.16 | 11807.00 |
| 11310.00 | 11509.00 | 1.76 | 11551.00 | 2.13 | 11602.00 | 2.58 | 11851.00 | 4.78 | 11932.00 | 5.50 | 11938.00 | 5.55 | 11954.00 |
| 11168.00 | 11360.00 | 1.72 | 11400.00 | 2.08 | 11446.00 | 2.49 | 11711.00 | 4.86 | 11805.00 | 5.70 | 11799.00 | 5.65 | 11816.00 |
| 11077.00 | 11261.00 | 1.66 | 11310.00 | 2.10 | 11363.00 | 2.58 | 11557.00 | 4.33 | 11702.00 | 5.64 | 11714.00 | 5.75 | 11727.00 |
| 11253.00 | 11447.00 | 1.72 | 11560.00 | 2.73 | 11596.00 | 3.05 | 11763.00 | 4.53 | 11905.00 | 5.79 | 11900.00 | 5.75 | 11912.00 |
| 11373.00 | 11558.00 | 1.63 | 11623.00 | 2.20 | 11670.00 | 2.61 | 11898.00 | 4.62 | 12018.00 | 5.67 | 12040.00 | 5.86 | 12051.00 |
| 11181.00 | 11365.00 | 1.65 | 11411.00 | 2.06 | 11454.00 | 2.44 | 11616.00 | 3.89 | 11766.00 | 5.23 | 11820.00 | 5.72 | 11829.00 |
| 11294.00 | 11506.00 | 1.88 | 11573.00 | 2.47 | 11605.00 | 2.75 | 11789.00 | 4.38 | 11941.00 | 5.73 | 11967.00 | 5.96 | 11979.00 |
| 11130.00 | 11312.00 | 1.64 | 11353.00 | 2.00 | 11402.00 | 2.44 | 11599.00 | 4.21 | 11770.00 | 5.75 | 11802.00 | 6.04 | 11809.00 |
| 10838.00 | 11043.00 | 1.89 | 11059.00 | 2.04 | 11104.00 | 2.45 | 11301.00 | 4.27 | 11480.00 | 5.92 | 11495.00 | 6.06 | 11504.00 |
| 11191.00 | 11407.00 | 1.93 | 11423.00 | 2.07 | 11475.00 | 2.54 | 11668.00 | 4.26 | 11827.00 | 5.68 | 11875.00 | 6.11 | 11881.00 |
| 10311.00 | 10540.00 | 2.22 | 10609.00 | 2.89 | 10655.00 | 3.34 | 10908.00 | 5.79 | 10924.00 | 5.95 | 10935.00 | 6.05 | 10935.00 |
| 11275.00 | 11451.00 | 1.56 | 11494.00 | 1.94 | 11535.00 | 2.31 | 11830.00 | 4.92 | 11948.00 | 5.97 | 11994.00 | 6.38 | 12002.00 |
341
TIME
5 DAYS 6 DAYS 7 DAYS 8 DAYS 9 DAYS 10 DAYS SAMPLE % H20 % H20 % H20 % H20 % H20 % H20
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 11740.00 | 5.59 | 11743.00 | 5.62 | 11745.00 | 5.64 | 11749.00 | 5.68 | 11754.00 | 5.72 | 11756.00 | 5.74 |
| 11814.00 | 5.35 | 11817.00 | 5.38 | 11819.00 | 5.40 | 11823.00 | 5.43 | 11827.00 | 5.47 | 11829.00 | 5.48 |
| 11962.00 | 5.76 | 11963.00 | 5.77 | 11965.00 | 5.79 | 11969.00 | 5.83 | 11974.00 | 5.87 | 11978.00 | 5.91 |
| 11825.00 | 5.88 | 11825.00 | 5.88 | 11824.00 | 5.87 | 11830.00 | 5.93 | 11835.00 | 5.97 | 11837.00 | 5.99 |
| 11735.00 | 5.94 | 11738.00 | 5.97 | 11740.00 | 5.99 | 11743.00 | 6.01 | 11745.00 | 6.03 | 11746.00 | 6.04 |
| 11922.00 | 5.95 | 11925.00 | 5.97 | 11927.00 | 5.99 | 11930.00 | 6.02 | 11932.00 | 6.03 | 11933.00 | 6.04 |
| 12061.00 | 6.05 | 12066.00 | 6.09 | 12069.00 | 6.12 | 12071.00 | 6.14 | 12075.00 | 6.17 | 12078.00 | 6.20 |
| 11839.00 | 5.88 | 11843.00 | 5.92 | 11845.00 | 5.94 | 11848.00 | 5.97 | 11851.00 | 5.99 | 11853.00 | 6.01 |
| 11989.00 | 6.15 | 11992.00 | 6.18 | 11994.00 | 6.20 | 11998.00 | 6.23 | 12000.00 | 6.25 | 12002.00 | 6.27 |
| 11822.00 | 6.22 | 11825.00 | 6.24 | 11828.00 | 6.27 | 11831.00 | 6.30 | 11834.00 | 6.33 | 11837.00 | 6.35 |
| 11512.00 | 6.22 | 11513.00 | 6.23 | 11515.00 | 6.25 | 11520.00 | 6.29 | 11523.00 | 6.32 | 11525.00 | 6.34 |
| 11892.00 | 6.26 | 11896.00 | 6.30 | 11900.00 | 6.34 | 11902.00 | 6.35 | 11906.00 | 6.39 | 11907.00 | 6.40 |
| 10935.00 | 6.05 | 10938.00 | 6.08 | 10940.00 | 6.10 | 10942.00 | 6.12 | 11944.00 | 15.84 | 10945.00 | 6.15 |
| 12008.00 | 6.50 | 12013.00 | 6.55 | 12020.00 | 6.61 | 12023.00 | 6.63 | 12023.00 | 6.63 | 12026.00 | 6.66 |
342
| Start date: 12/7/2002 SUCTION TEST -PRESTON | TIME | |||||
|---|---|---|---|---|---|---|
| 1HR | 2HR | 4HR | 24HR | 2 DAYS | 3 DAYS | 4 DAYS |
SAMPLE dry wt.(g) % H20 % H20 % H20 % H20 % H20 % H20 % H20
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 11731.00 | 11850.00 | 1.01 | 11881.00 | 1.28 | 11919.00 | 1.60 | 12095.00 | 3.10 | 12190.00 | 3.91 | 12296.00 | 4.82 | 12352.00 | 5.29 |
| 11627.00 | 11746.00 | 1.02 | 11772.00 | 1.25 | 11805.00 | 1.53 | 11945.00 | 2.74 | 12020.00 | 3.38 | 12104.00 | 4.10 | 12151.00 | 4.51 |
| 11101.00 | 11222.00 | 1.09 | 11250.00 | 1.34 | 11282.00 | 1.63 | 11443.00 | 3.08 | 11530.00 | 3.86 | 11628.00 | 4.75 | 11677.00 | 5.19 |
| 11574.00 | 11689.00 | 0.99 | 11715.00 | 1.22 | 11748.00 | 1.50 | 11907.00 | 2.88 | 11994.00 | 3.63 | 12090.00 | 4.46 | 12142.00 | 4.91 |
| 11572.00 | 11697.00 | 1.08 | 11725.00 | 1.32 | 11760.00 | 1.62 | 11925.00 | 3.05 | 12008.00 | 3.77 | 12103.00 | 4.59 | 12154.00 | 5.03 |
| 11541.00 | 11628.00 | 0.75 | 11660.00 | 1.03 | 11695.00 | 1.33 | 11894.00 | 3.06 | 11996.00 | 3.94 | 12107.00 | 4.90 | 12161.00 | 5.37 |
| 11493.00 | 11586.00 | 0.81 | 11613.00 | 1.04 | 11648.00 | 1.35 | 11822.00 | 2.86 | 11909.00 | 3.62 | 12007.00 | 4.47 | 12062.00 | 4.95 |
| 11507.00 | 11620.00 | 0.98 | 11653.00 | 1.27 | 11694.00 | 1.63 | 11901.00 | 3.42 | 12006.00 | 4.34 | 12117.00 | 5.30 | 12163.00 | 5.70 |
| 11627.00 | 11724.00 | 0.83 | 11752.00 | 1.08 | 11787.00 | 1.38 | 11973.00 | 2.98 | 12071.00 | 3.82 | 12176.00 | 4.72 | 12236.00 | 5.24 |
| 11638.00 | 11730.00 | 0.79 | 11761.00 | 1.06 | 11799.00 | 1.38 | 12006.00 | 3.16 | 12109.00 | 4.05 | 12221.00 | 5.01 | 12278.00 | 5.50 |
| 11546.00 | 11636.00 | 0.78 | 11664.00 | 1.02 | 11699.00 | 1.33 | 11880.00 | 2.89 | 11974.00 | 3.71 | 12078.00 | 4.61 | 12136.00 | 5.11 |
| 11565.00 | 11665.00 | 0.86 | 11699.00 | 1.16 | 11740.00 | 1.51 | 11950.00 | 3.33 | 12056.00 | 4.25 | 12166.00 | 5.20 | 12222.00 | 5.68 |
| 11506.00 | 11655.00 | 1.29 | 11674.00 | 1.46 | 11705.00 | 1.73 | 11839.00 | 2.89 | 11904.00 | 3.46 | 11977.00 | 4.09 | 12012.00 | 4.40 |
| 11532.00 | 11647.00 | 1.00 | 11681.00 | 1.29 | 11722.00 | 1.65 | 11933.00 | 3.48 | 12045.00 | 4.45 | 12166.00 | 5.50 | 12226.00 | 6.02 |
343
TIME
5 DAYS 6 DAYS 7 DAYS 8 DAYS 9 DAYS 10 DAYS SAMPLE % H20 % H20 % H20 % H20 % H20 % H20
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 12396.00 | 5.67 | 12410.00 | 5.79 | 12420.00 | 5.87 | 12427.00 | 5.93 | 12431.00 | 5.97 | 12435.00 | 6.00 |
| 12202.00 | 4.95 | 12225.00 | 5.14 | 12244.00 | 5.31 | 12255.00 | 5.40 | 12263.00 | 5.47 | 12267.00 | 5.50 |
| 11714.00 | 5.52 | 11726.00 | 5.63 | 11734.00 | 5.70 | 11741.00 | 5.77 | 11745.00 | 5.80 | 11748.00 | 5.83 |
| 12190.00 | 5.32 | 12208.00 | 5.48 | 12221.00 | 5.59 | 12229.00 | 5.66 | 12234.00 | 5.70 | 12237.00 | 5.73 |
| 12205.00 | 5.47 | 12222.00 | 5.62 | 12234.00 | 5.72 | 12240.00 | 5.77 | 12244.00 | 5.81 | 12247.00 | 5.83 |
| 12195.00 | 5.67 | 12204.00 | 5.74 | 12212.00 | 5.81 | 12217.00 | 5.86 | 12222.00 | 5.90 | 12224.00 | 5.92 |
| 12119.00 | 5.45 | 12138.00 | 5.61 | 12149.00 | 5.71 | 12154.00 | 5.75 | 12157.00 | 5.78 | 12159.00 | 5.79 |
| 12185.00 | 5.89 | 12193.00 | 5.96 | 12199.00 | 6.01 | 12202.00 | 6.04 | 12208.00 | 6.09 | 12209.00 | 6.10 |
| 12291.00 | 5.71 | 12307.00 | 5.85 | 12317.00 | 5.93 | 12322.00 | 5.98 | 12328.00 | 6.03 | 12330.00 | 6.05 |
| 12314.00 | 5.81 | 12322.00 | 5.88 | 12329.00 | 5.94 | 12333.00 | 5.97 | 12338.00 | 6.01 | 12340.00 | 6.03 |
| 12196.00 | 5.63 | 12218.00 | 5.82 | 12231.00 | 5.93 | 12237.00 | 5.98 | 12242.00 | 6.03 | 12242.00 | 6.03 |
| 12259.00 | 6.00 | 12265.00 | 6.05 | 12273.00 | 6.12 | 12278.00 | 6.17 | 12282.00 | 6.20 | 12284.00 | 6.22 |
| 12048.00 | 4.71 | 12061.00 | 4.82 | 12070.00 | 4.90 | 12076.00 | 4.95 | 12082.00 | 5.01 | 12083.00 | 5.01 |
| 12257.00 | 6.29 | 12262.00 | 6.33 | 12269.00 | 6.39 | 12273.00 | 6.43 | 12277.00 | 6.46 | 12279.00 | 6.48 |
344
| SUCTION TEST - SHARP'S Start date: 5/11/02 | TIME | |||||
|---|---|---|---|---|---|---|
| 1HR | 2HR | 4HR | 24HR | 2 DAYS | 3 DAYS | 4 DAYS |
SAMPLE dry wt.(g) % H20 % H20 % H20 % H20 % H20 % H20 % H20
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 12711.00 | 12738.00 | 0.21 | 12743.00 | 0.25 | 12747.00 | 0.28 | 12777.00 | 0.52 | 12801.00 | 0.71 | 12820.00 | 0.86 | 12836.00 | 0.98 |
| 12788.00 | 12814.00 | 0.20 | 12818.00 | 0.23 | 12822.00 | 0.27 | 12845.00 | 0.45 | 12866.00 | 0.61 | 12880.00 | 0.72 | 12890.00 | 0.80 |
| 12764.00 | 12797.00 | 0.26 | 12800.00 | 0.28 | 12802.00 | 0.30 | 12829.00 | 0.51 | 12851.00 | 0.68 | 12869.00 | 0.82 | 12884.00 | 0.94 |
| 12886.00 | 12912.00 | 0.20 | 12915.00 | 0.23 | 12918.00 | 0.25 | 12941.00 | 0.43 | 12964.00 | 0.61 | 12978.00 | 0.71 | 12989.00 | 0.80 |
| 12804.00 | 12824.00 | 0.16 | 12828.00 | 0.19 | 12836.00 | 0.25 | 12878.00 | 0.58 | 12913.00 | 0.85 | 12937.00 | 1.04 | 12954.00 | 1.17 |
| 12656.00 | 12681.00 | 0.20 | 12687.00 | 0.24 | 12694.00 | 0.30 | 12739.00 | 0.66 | 12777.00 | 0.96 | 12806.00 | 1.19 | 12826.00 | 1.34 |
| 12898.00 | 12935.00 | 0.29 | 12942.00 | 0.34 | 12950.00 | 0.40 | 13004.00 | 0.82 | 13045.00 | 1.14 | 13076.00 | 1.38 | 13096.00 | 1.54 |
| 12748.00 | 12822.00 | 0.58 | 12828.00 | 0.63 | 12836.00 | 0.69 | 12893.00 | 1.14 | 12940.00 | 1.51 | 12972.00 | 1.76 | 12989.00 | 1.89 |
| 12675.00 | 12721.00 | 0.36 | 12726.00 | 0.40 | 12734.00 | 0.47 | 12783.00 | 0.85 | 12822.00 | 1.16 | 12848.00 | 1.36 | 12866.00 | 1.51 |
| 12762.00 | 12795.00 | 0.26 | 12801.00 | 0.31 | 12808.00 | 0.36 | 12856.00 | 0.74 | 12893.00 | 1.03 | 12922.00 | 1.25 | 12941.00 | 1.40 |
| 12795.00 | 12846.00 | 0.40 | 12853.00 | 0.45 | 12862.00 | 0.52 | 12917.00 | 0.95 | 12959.00 | 1.28 | 12991.00 | 1.53 | 13010.00 | 1.68 |
| 12765.00 | 12809.00 | 0.34 | 12818.00 | 0.42 | 12828.00 | 0.49 | 12887.00 | 0.96 | 12937.00 | 1.35 | 12971.00 | 1.61 | 12992.00 | 1.78 |
| 12372.00 | 12428.00 | 0.45 | 12428.00 | 0.45 | 12434.00 | 0.50 | 12494.00 | 0.99 | 12534.00 | 1.31 | 12563.00 | 1.54 | 12581.00 | 1.69 |
| 12843.00 | 12876.00 | 0.26 | 12885.00 | 0.33 | 12895.00 | 0.40 | 12949.00 | 0.83 | 12991.00 | 1.15 | 13020.00 | 1.38 | 13037.00 | 1.51 |
345
TIME
5 DAYS 6 DAYS 7 DAYS 8 DAYS 9 DAYS 10 DAYS
SAMPLE %H20 % H20 % H20 % H20 % H20 %H20
MB-6a
MB-6b
MB-8a
MB-8b
MB-10a
MB-10b
MB-12a
MB-12b
MB-14a
MB-14b
MB-16a
MB-16b
LB-6a
UB-10a
| 12849.00 | 1.09 | 12862.00 | 1.19 | 12871.00 | 1.26 | 12874.00 | 1.28 | 12879.00 | 1.32 | 12883.00 | 1.35 |
| 12898.00 | 0.86 | 12908.00 | 0.94 | 12913.00 | 0.98 | 12915.00 | 0.99 | 12919.00 | 1.02 | 12922.00 | 1.05 |
| 12896.00 | 1.03 | 12908.00 | 1.13 | 12915.00 | 1.18 | 12919.00 | 1.21 | 12925.00 | 1.26 | 12929.00 | 1.29 |
| 12996.00 | 0.85 | 13006.00 | 0.93 | 13011.00 | 0.97 | 13013.00 | 0.99 | 13018.00 | 1.02 | 13021.00 | 1.05 |
| 12965.00 | 1.26 | 12977.00 | 1.35 | 12982.00 | 1.39 | 12985.00 | 1.41 | 12991.00 | 1.46 | 12996.00 | 1.50 |
| 12838.00 | 1.44 | 12849.00 | 1.52 | 12855.00 | 1.57 | 12857.00 | 1.59 | 12860.00 | 1.61 | 12864.00 | 1.64 |
| 13109.00 | 1.64 | 13121.00 | 1.73 | 13126.00 | 1.77 | 13128.00 | 1.78 | 13133.00 | 1.82 | 13136.00 | 1.85 |
| 12998.00 | 1.96 | 13008.00 | 2.04 | 13011.00 | 2.06 | 13013.00 | 2.08 | 13016.00 | 2.10 | 13018.00 | 2.12 |
| 12875.00 | 1.58 | 12881.00 | 1.63 | 12884.00 | 1.65 | 12886.00 | 1.66 | 12889.00 | 1.69 | 12893.00 | 1.72 |
| 12953.00 | 1.50 | 12965.00 | 1.59 | 12970.00 | 1.63 | 12972.00 | 1.65 | 12977.00 | 1.68 | 12982.00 | 1.72 |
| 13021.00 | 1.77 | 13032.00 | 1.85 | 13037.00 | 1.89 | 13040.00 | 1.91 | 13045.00 | 1.95 | 13050.00 | 1.99 |
| 13003.00 | 1.86 | 13014.00 | 1.95 | 13018.00 | 1.98 | 13021.00 | 2.01 | 13025.00 | 2.04 | 13029.00 | 2.07 |
| 12588.00 | 1.75 | 12600.00 | 1.84 | 12603.00 | 1.87 | 12604.00 | 1.88 | 12606.00 | 1.89 | 12608.00 | 1.91 |
| 13052.00 | 1.63 | 13064.00 | 1.72 | 13070.00 | 1.77 | 13074.00 | 1.80 | 13079.00 | 1.84 | 13084.00 | 1.88 |
346
Appendix E
Cyclic and Staged Triaxial Test Stress vs. Strain Plots
347

Deviator Stress (psi)Deviator Stress (psi)
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.500% 0.600% 0.700%
Strain
Figure E.1: Sharps quarry cyclic triaxial- L.B. 6% B
180
160
140
120
100 Stage 2 Stage 3 Cyclic 80
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1.0000% 1.1000% 1.2000% 1.3000%
Strain
Figure E.3: Sharps quarry cyclic triaxial- L.B. 6% 2B
180
160
140
120
100 Stage 2 Stage 3 Cyclic 80
60
40
20
0
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1
| 0 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.04% | 0.05% | 0.06% | 0.07% | 0.08% | 0.09% | 0.10% | 0.11% | 0.12% | 0.13% | 0.14% | 0.15% | 0.16% | 0.17% | |
| Strain | ||||||||||||||
| Figure E. | 5: Sha | rps qu | arry cyclic t | riaxial | - L.B. | 6% C | ||||||||
| 160 | ||||||||||||||
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
10
9
8
7
6
5
4
3
2
1
0
0.02% 0.03% 0.04% 0.05% 0.06% 0.07% 0.08% 0.09% 0.10% 0.11% 0.12% 0.13% 0.14%
Strain
Figure E.7: Sharps quarry cyclic triaxial- M.B. 6% A
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
20
0
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1
| 0 0.05 % | 0.06 % | 0.07 % | 0.08 % | 0.09 % | 0.10 % | 0.11 % | 0.12 % | 0.13 % | 0.14 % | 0.15 % Strain | 0.16 % | 0.17 % | 0.18 % | 0.19 % | 0.20 % | 0.21 % | 0.22 % | 0.23 % | 0.24 % | 0.25 % |
| Fi | gure | E.9 | : Sh | arps | qua | rry | cycl | ic tr | iaxi | al- | M.B | . 6% B | ||||||||
| 160 |
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
20
0
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain
352

Deviator Stress (psi)Deviator Stress (psi)
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.3300% 0.3400% 0.3500% 0.3600% 0.3700% 0.3800% 0.3900% 0.4000% 0.4100% 0.4200% 0.4300% 0.4400% 0.4500% 0.4600% 0.4700%
Strain
Figure E.11: Sharps quarry cyclic triaxial- M.B. 8% A
200
180
160
140
| 120 | |
|---|---|
| Stage 2 | |
| 100 | Stage 3 |
| Cyclic | |
| 80 | |
60
40
20
0
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.0200% 0.0300% 0.0400% 0.0500% 0.0600% 0.0700% 0.0800% 0.0900% 0.1000% 0.1100% 0.1200% 0.1300% 0.1400% 0.1500% 0.1600%
Strain
Figure E.13: Sharps quarry cyclic triaxial- M.B. 8% B
180
160
140
120
| 100 | Stage 2 |
|---|---|
| Stage 3 | |
| 80 | Cyclic |
60
40
20
0
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain

Deviator Stress (psi) Deviator Stress (psi)
9 8 7 6 5 4 3 2 1 0
0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 %%%%%%%%%%%%%%%%%%%%%%%%%%
Strain
Figure E.15: Sharps quarry cyclic triaxial- M.B. 8% B2
180
160
140
120
100 Stage 2 Stage 3 Cyclic 80
60
40
20
0
0.0% 2.0% 4.0% 6.0 % 8.0% 10.0% 12.0%
Strain
355

Deviator Stress (psi)Deviator Stress (psi)
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.0400% 0.0600% 0.0800% 0.1000% 0.1200% 0.1400% 0.1600% 0.1800% 0.2000% 0.2200%
Strain
Figure E.17: Sharps quarry cyclic triaxial- M.B. 10% A
140
130
120
110
100
90
80 Stage 2 70 Stage 3 Cyclic60
50
40
30
20
10
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0% 11.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.0220% 0.0420% 0.0620% 0.0820% 0.1020% 0.1220% 0.1420% 0.1620% 0.1820%
Strain
Figure E.19: Sharps quarry cyclic triaxial- M.B. 10% B
150
140
130
120
110
100
90
80 Stage 2 Stage 3 70 Cyclic
60
50
40
30
20
10
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0% 11.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.0200 0.0300 0.0400 0.0500 0.0600 0.0700 0.0800 0.0900 0.1000 0.1100 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1800 0.1900 0.2000
| % % | % % | % | % | % | % | % | % Strain | % | % | % | % | % | % % % % |
| Figur | e E. | 21: S | harp | s qu | arry | cycli | c tri | axia | l- M | .B. 1 | 2% A | ||
| 160 |
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
20
0
0.0% 2.0% 4.0% 6.0 % 8.0% 10.0% 12.0%
Strain
358

Deviator Stress (psi)Deviator Stress (psi)
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 %%%%%%%%%%%%%%%%%%%%%
Strain
Figure E.23: Sharps quarry cyclic triaxial- M.B. 12% B
140
120
100
80 Stage 2 Stage 3 Cyclic
60
40
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.0300% 0.0400% 0.0500% 0.0600% 0.0700% 0.0800% 0.0900% 0.1000% 0.1100% 0.1200% 0.1300% 0.1400% 0.1500% 0.1600% 0.1700%
Strain
Figure E.25: Sharps quarry cyclic triaxial- M.B. 14% A
140
120
100
80 Stage 2 Stage 3 Cyclic
60
40
20
0
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.09% 0.10% 0.11% 0.12% 0.13% 0.14% 0.15% 0.16% 0.17% 0.18% 0.19% 0.20% 0.21% 0.22% 0.23% 0.24% 0.25% 0.26% 0.27%
Strain
Figure E.27: Sharps quarry cyclic triaxial- M.B. 14% B
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 2.0% 4.0% 6.0 % 8.0% 10.0% 12.0%
Strain
361

Deviator Stress (psi)Deviator Stress (psi)
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.0400% 0.0500% 0.0600% 0.0700% 0.0800% 0.0900% 0.1000% 0.1100% 0.1200% 0.1300% 0.1400% 0.1500% 0.1600%
Strain
Figure E.29: Sharps quarry cyclic triaxial- M.B. 16% A
140
120
100
80 Stage 2 Stage 3 Cyclic
60
40
20
0
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0.07% 0.08% 0.09% 0.10% 0.11% 0.12% 0.13% 0.14% 0.15% 0.16% 0.17% 0.18% 0.19% 0.20% 0.21% 0.22% 0.23%
Strain
Figure E.31: Sharps quarry cyclic triaxial- M.B. 16% B
140
120
100
80 Stage 2 Stage 3 Cyclic
60
40
20
0
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain
0.0000% 0.1000% 0.2000% 0.3000% 0.4000% 0.5000%
Strain
Stage 2 Stage 3 Cyclic Stage 1
0.0% 5.0% 10.0% 15.0% 20.0% 25.0% 30.0%
Strain



Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.05% 0.10% 0.15% 0.20% 0.25% 0.30%
Strain
Figure E.35: Sharps quarry cyclic triaxial- U.B. 10% C
140
120
100
80 Stage 2 Stage 3 Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.37: Preston quarry cyclic triaxial- L.B. 6% A
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strain

12 11 10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24%
Strain
Figure E.39: Preston quarry cyclic triaxial- L.B. 6% B
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain
367
Deviator Stress (psi)Deviator Stress (psi) Deviator Stress (psi)Deviator Stress (psi)

12 11 10 9 8 7 6 5 4 3 2 1 0
0.0000%
160
140
120
100
80
60
40
20
0 0.0%
0.0200% 0.0400% 0.0600% 0.0800% 0.1000% 0.1200% 0.1400% 0.1600% 0.1800% 0.2000%
Strain
Figure E.41: Preston quarry cyclic triaxial- M.B. 6% A
Stage 2 Stage 3 Cyclic
1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.43: Preston quarry cyclic triaxial- M.B. 6% B
140
120
100
80 Stage 2 Stage 3 Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30% 0.32% 0.34%
Strain
Figure E.45: Preston quarry cyclic triaxial- M.B. 8% A
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0 % 5.0% 6.0% 7.0% 8.0%
Strain
370

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24%
Strain
Figure E.47: Preston quarry cyclic triaxial- M.B. 8% B
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30% 0.32% 0.34%
Strain
Figure E.49: Preston quarry cyclic triaxial- M.B. 10% A
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.51: Preston quarry cyclic triaxial- M.B. 10% B
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0%
Strain
373

12
11
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.53: Preston quarry cyclic triaxial- M.B. 12% A
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain
374
Deviator Stress (psi) Deviator Stress (psi) Deviator Stress (psi)Deviator Stress (psi)

12 11 10 9 8 7 6 5 4 3 2 1
| 0 0.00 % | 0.02 % | 0.04 % | 0.06 % | 0.08 % | 0.10 % | 0.12 % | 0.14 % | 0.16 % | 0.18 % | 0.20 % Strain | 0.22 % | 0.24 % | 0.26 % | 0.28 % | 0.30 % | 0.32 % | 0 | .34 % | 0.36 % | 0.38 % | 0.40 % |
| Figu | re E | .55 | : Pre | ston | qu | arry | cycl | ic t | riaxi | al- | M.B | . 12 | % B | ||||||||
| 160 | |||||||||||||||||||||
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain
375

Deviator Stress (psi) Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1
| 0 0.00 % | 0.02 % | 0.04 % | 0.06 % | 0.08 % | 0.10 % | 0.12 % | 0.14 % | 0.16 % | 0.18 % | 0.20 % Strain | 0.22 % | 0.24 % | 0.26 % | 0.28 % | 0.30 % | 0.32 % | 0.34 % | 0.36 % | 0.38 % | 0.40 % |
| Figu | re E | .57 | : Pre | ston | qu | arry | cycl | ic t | riaxi | al- | M.B | . 14% A | ||||||||
| 120 |
100
80
Stage 2 60 Stage 3 Cyclic
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0 % 5.0% 6.0% 7.0% 8.0%
Strai n
376

12 11 10
9
8
7
6
5
4
3
2
1
0
0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 0.44
%%%%%%%%%%%%%%%%%%%%%%%
Strain
Figure E.59: Preston quarry cyclic triaxial- M.B. 14% B
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strain
377
Deviator Stress (psi) Deviator Stress (psi) Deviator Stress (psi)Deviator Stress (psi)

12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30% 0.32% 0.34%
Strain
Figure E.61: Preston quarry cyclic triaxial- M.B. 16% A
160
140
120
100
| 80 | Stage 3 Cyclic Stage 2 |
| 60 |
40
20
0
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24%
Strain
Figure E.63: Preston quarry cyclic triaxial- M.B. 16% B
120
100
80
Stage 2 60 Stage 3 Cyclic
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8. 0%
Strain
379

Deviator Stress (psi) Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 0.44 0.46 0.48 0.50 %%%%%%%%%%%%%%%%%%%%%%%%%%
Strain
Figure E.65: Preston quarry cyclic triaxial- U.B. 10% A
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12 11 10 9
8
7
6
5
4
3
2
1
0
0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30% 0.32% 0.34% 0.36% 0.38% 0.40% 0.42% 0.44%
Strain
Figure E.67: Preston quarry cyclic triaxial- U.B. 10% B
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain

12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14%
Strain
Figure E.69: Black Rock quarry cyclic triaxial- L.B. 6% A.
Deviator Stress (psi)
160
140
120
100
80
60
40
20
Deviator Stress (psi)
Stage 2 Stage 3 Cyclic
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain
382

Deviator Stress (psi)Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16%
Strain
Figure E.71: Black Rock quarry cyclic triaxial- L.B. 6% B.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
20
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain
383

Deviator Stress (psi)Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20%
Strain
Figure E.73: Black Rock quarry cyclic triaxial- M.B. 6% A.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0%
Strain

Deviator Stress (psi) Deviator Stress (psi)
| 12 | ||||||||||
| 10 | ||||||||||
| 9 | ||||||||||
| 8 | ||||||||||
| 7 | ||||||||||
| 6 | ||||||||||
| 5 | ||||||||||
| 4 | ||||||||||
| 3 | ||||||||||
| 2 | ||||||||||
| 1 | ||||||||||
| 0 0.00% 140 | 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% Strain Figure E.75: Black Rock quarry cyclic triaxial- M.B. 6% B. | 0.24% | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 120 | ||||||||||
| 100 | ||||||||||
| 60 80 | Stage 2 Stage 3 Cyclic | |||||||||
| 40 | ||||||||||
| 20 | ||||||||||
| 0 0.0% | 1.0% | 2.0% | 3.0% | Strain | 4.0% | 5.0% | 6.0% | 7.0% | ||

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20%
Strain
Figure E.77: Black Rock quarry cyclic triaxial- M.B. 8% A.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.79: Black Rock quarry cyclic triaxial- M.B. 8% B.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20%
Strain
Figure E.81: Black Rock quarry cyclic triaxial- M.B. 10% A.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strain

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20%
Strain
Figure E.83: Black Rock quarry cyclic triaxial- M.B. 10% B.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strain

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.37% 0.39% 0.41% 0.43% 0.45% 0.47% 0.49% 0.51% 0.53% 0.55% 0.57% 0.59% 0.61% 0.63% 0.65% 0.67%
Strain
Figure E.85: Black Rock quarry cyclic triaxial- M.B. 12% A.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30% 0.32% 0.34% 0.36% 0.38% 0.40%
Strain
Figure E.87: Black Rock quarry cyclic triaxial- M.B. 12% B.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.89: Black Rock quarry cyclic triaxial- M.B. 14% A.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strain

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.05% 0.07% 0.09% 0.11% 0.13% 0.15% 0.17% 0.19% 0.21%
Strain
Figure E.91: Black Rock quarry cyclic triaxial- M.B. 14% B.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12
10
9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.93: Black Rock quarry cyclic triaxial- M.B. 16% A.
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strain

Deviator Stress (psi)Deviator Stress (psi)
12
10
9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.95: Black Rock quarry cyclic triaxial- M.B. 16% B.
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strain

Deviator Stress (psi) Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.25% 0.27% 0.29% 0.31% 0.33% 0.35% 0.37% 0.39% 0.41% 0.43% 0.45% 0.47% 0.49% 0.51% 0.53% 0.55% 0.57% 0.59%
Strain
Figure E.97: Black Rock quarry cyclic triaxial- U.B. 10% A.
160
140
120
100
| 80 | Stage 2 Stage 3 Cyclic |
| 60 |
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.0000% 0.1000% 0.2000% 0.3000% 0.4000% 0.5000% 0.6000%
Strain
Figure E.99: Black Rock quarry cyclic triaxial- U.B. 10% B.
Deviator Stress (psi)
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n
397

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.0000% 0.1000% 0.2000% 0.3000% 0.4000%
Strain
FigureE.101:BlackRockquarrycyclictriaxial-U.B.10%C.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14%
Strain
Figure E.103: Glen Rose quarry cyclic triaxial- L.B. 6% A.
140
120
100
80 Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20%
Strain
Figure E.105: Glen Rose quarry cyclic triaxial- L.B. 6% B.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.107: Glen Rose quarry cyclic triaxial- M.B. 6% A.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.109: Glen Rose quarry cyclic triaxial- M.B. 6% B.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.111: Glen Rose quarry cyclic triaxial- M.B. 8% A.
120
100
80
Stage 2
60 Stage 3
Cyclic
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20%
Strain
Figure E.113: Glen Rose quarry cyclic triaxial- M.B. 8% B.
Deviator Stress (psi)
120
100
80
Stage 2 60 Stage 3 Cyclic
40
20
Deviator Stress (psi)
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n
404

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.115: Glen Rose quarry cyclic triaxial- M.B. 10% A.
140
120
100
80 Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.117: Glen Rose quarry cyclic triaxial- M.B. 10% B.
120
100
80
Stage 2 60 Stage 3 Cyclic
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.119: Glen Rose quarry cyclic triaxial- M.B. 12% A.
120
100
80
Stage 2
60 Stage 3
Cyclic
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.121: Glen Rose quarry cyclic triaxial- M.B. 12% B.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24%
Strain
Figure E.123: Glen Rose quarry cyclic triaxial- M.B. 14% A.
Deviator Stress (psi)
120
100
80
Stage 2 60 Stage 3 Cyclic
40
20
Deviator Stress (psi)
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n
409

Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Figure E.125: Glen Rose quarry cyclic triaxial- M.B. 14% B.
Deviator Stress (psi)
140
120
100
80 Stage 2 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n
410

Deviator Stress (psi)
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24%
Strain
Figure E.127: Glen Rose quarry cyclic triaxial- M.B. 16% A.
120
100
80
Stage 2 60 Stage 3 Cyclic
40
20
Deviator Stress (psi)
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n
411

Deviator Stress (psi)
12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20%
Strain
Figure E.129: Glen Rose quarry cyclic triaxial- M.B. 16% B.
Deviator Stress (psi)
140
120
100
80 Stage 2 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strai n
412

12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.10% 0.20% 0.30% 0.40% 0.50% 0.60% 0.70%
Strain
Figure E.131 Glen Rose quarry cyclic triaxial- U.B. 10% A.
Deviator Stress (psi)
120
100
80
Stage 2 60 Stage 3 Cyclic
40
20
Deviator Stress (psi)
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strain
413

12 11 10 9 8 7 6 5 4 3 2 1 0
0.00% 0.10% 0.20%
Strain
Figure E.133: Glen Rose quarry cyclic triaxial- U.B. 10% B.
Deviator Stress (psi)
120
100
80
Stage 2 60 Stage 3 Cyclic
40
20
Deviator Stress (psi)
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strain
414

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20%
Strain
Fig ureE.135:GraniteMountainquarrycyclictriaxial-L.B.6%A.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16%
Strain
Fig ureE.137:GraniteMountainquarrycyclictriaxial-L.B.6%B.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Fig ureE.139:GraniteMountainquarrycyclictriaxial-M.B.6%A.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Fig ureE.141:GraniteMountainquarrycyclictriaxial-M.B.6%B.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Fig ureE.143:GraniteMountainquarrycyclictriaxial-M.B.8%A.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Fig ureE.145:GraniteMountainquarrycyclictriaxial-M.B.8%B.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30% 0.32%
Strain
Fig ureE.147:GraniteMountainquarrycyclictriaxial-M.B.10%A.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28%
Strain
Fig ureE.149:GraniteMountainquarrycyclictriaxial-M.B.10%B.
160
140
120
100
0.30%
Stage 2 80 Stage 3 Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
8 7 6 5 4 3 2 1 0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30% 0.32% 0.34%
Strain
Fig ureE.151:GraniteMountainquarrycyclictriaxial-M.B.12%A.
160
140
120
100
Stage 2 80 Stage 3 Cyclic
60
40
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30% 0.32% 0.34%
Strain
Fig ureE.153:GraniteMountainquarrycyclictriaxial-M.B.12%B.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24%
Strain
Fig ureE.155:GraniteMountainquarrycyclictriaxial-M.B.14%A.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14%
Strain
Fig ureE.157:GraniteMountainquarrycyclictriaxial-M.B.14%B.
120
100
80
Stage 2
60 Stage 3
Cyclic
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16%
Strain
Fig ureE.159:GraniteMountainquarrycyclictriaxial-M.B.16%A.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22%
Strain
Fig ureE.161:GraniteMountainquarrycyclictriaxial-M.B.16%B.
140
120
100
80
Stage 2
Stage 3
Cyclic
60
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Fig ureE.163:GraniteMountainquarrycyclictriaxial-U.B.10%A.
120
100
80
Stage 2
60 Stage 3
Cyclic
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strai n

Deviator Stress (psi) Deviator Stress (psi)
12
10
9
8
7
6
5
4
3
2
1
0
0.00% 0.02% 0.04% 0.06% 0.08% 0.10% 0.12% 0.14% 0.16% 0.18% 0.20% 0.22% 0.24% 0.26% 0.28% 0.30%
Strain
Fig ureE.165:GraniteMountainquarrycyclictriaxial-U.B.10%B.
120
100
80
Stage 2
60 Stage 3
Cyclic
40
20
0
0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 8.0% 9.0% 10.0%
Strai n
Appendix F
Mohr-Coulomb Failure Envelope Plots
431

Figure F.1: Sharps quarry L.B. 6% 2B consolidated drained strength.
Shear Stress (psi)

c = 12.2 psi
Figure F.2: Sharps quarry L.B. 6% B consolidated drained strength. 432

Figure F.3: Sharps quarry L.B. 6% C consolidated drained strength.

Figure F.4: Sharps quarry M.B. 6% A consolidated drained strength. 433

Figure F.5: Sharps quarry M.B. 6% B consolidated drained strength.

Figure F.6: Sharps quarry M.B. 8% A consolidated drained strength. 434

Figure F.7: Sharps quarry M.B. 8% B consolidated drained strength.

Figure F.8: Sharps quarry M.B. 8% B2 consolidated drained strength. 435

F![]()

436

Figure F.11: Sharps quarry M.B. 12% A consolidated drained strength.

Figure F.12: Sharps quarry M.B. 12% B consolidated drained strength. 437

Figure F.13: Sharps quarry M.B. 14% A consolidated drained strength.

Figure F.14: Sharps quarry M.B. 14% B consolidated drained strength. 438

Figure F.15: Sharps quarry M.B. 16% A consolidated drained strength.

Figure F.16: Sharps quarry M.B. 16% B consolidated drained strength. 439

Figure F.17: Sharps quarry U.B. 10% A consolidated drained strength.

Figure F.18: Sharps quarry U.B. 10% C consolidated drained strength. 440

Figure F.19: Preston quarry L.B. 6% A consolidated drained strength.

Figure F.20: Preston quarry L.B. 6% B consolidated drained strength. 441

Figure F.21: Preston quarry M.B. 6% A consolidated drained strength.

Figure F.22: Preston quarry M.B. 6% B consolidated drained strength. 442

Figure F.23: Preston quarry M.B. 8% A consolidated drained strength.

Figure F.24: Preston quarry M.B. 8% B consolidated drained strength.
443

F![]()

444

Figure F.27: Preston quarry M.B. 12% A consolidated drained strength.

Figure F.28: Preston quarry M.B. 12% B consolidated drained strength. 445

F![]()

446

Figure F.31: Preston quarry M.B. 16% A consolidated drained strength.

Figure F.32: Preston quarry M.B. 16% B consolidated drained strength. 447

Figure F.33: Preston quarry U.B. 10% A consolidated drained strength.

Figure F.34: Preston quarry U.B. 10% B consolidated drained strength. 448

Figure F.35: Black Rock quarry L.B. 6% A consolidated drained strength.

Figure F.36: Black Rock quarry L.B. 6% B consolidated drained strength. 449

Fi![]()
![]()
c = 23.0 psi
20
0

100
Shear Stress (psi)
80
60
40

Figure F.39: Black Rock quarry M.B. 8% A consolidated drained strength.

Figure F.40: Black Rock quarry M.B. 8% B consolidated drained strength. 451
Shear Stress (psi)
120
100 80 60 40 20
c = 10.5 psi
0
| φ = 44.3 deg. | |
Fig![]()
![]()

![]()
452

Figure F.43: Black Rock quarry M.B. 12% A consolidated drained strength.

Figure F.44: Black Rock quarry M.B. 12% B consolidated drained strength. 453

Fi g![]()
![]()

![]()
454

Figure F.47: Black Rock quarry M.B. 16% A consolidated drained strength.

Figure F.48: Black Rock quarry M.B. 16% B consolidated drained strength. 455

Figure F.49: Black Rock quarry U.B. 10% A consolidated drained strength.

Figure F.50: Black Rock quarry U.B. 10% B consolidated drained strength. 456

Figure F.51: Black Rock quarry U.B. 10% C consolidated drained strength.

Figure F.52: Glen Rose quarry L.B. 6% consolidated drained strength. 457

Figure F.53: Glen Rose quarry L.B. 6% B consolidated drained strength.

Figure F.54: Glen Rose quarry M.B. 6% A consolidated drained strength. 458

Figure F.55: Glen Rose quarry M.B. 6% B consolidated drained strength.

Figure F.56: Glen Rose quarry M.B. 8% A consolidated drained strength. 459

Figure F.57: Glen Rose quarry M.B. 8% B consolidated drained strength.

Figure F.58: Glen Rose quarry M.B. 10% A consolidated drained strength. 460

Figure F.59: Glen Rose quarry M.B. 10% B consolidated drained strength.

Figure F.60: Glen Rose quarry M.B. 12% A consolidated drained strength. 461

Figure F.61: Glen Rose quarry M.B. 12% B consolidated drained strength.

Figure F.62: Glen Rose quarry M.B. 14% A consolidated drained strength. 462

Figure F.63: Glen Rose quarry M.B. 14% B consolidated drained strength.

Figure F.64: Glen Rose quarry M.B. 16% A consolidated drained strength. 463

Figure F.65: Glen Rose quarry M.B. 16% B consolidated drained strength.

Figure F.66: Glen Rose quarry U.B. 10% A consolidated drained strength. 464

Figure F.67: Glen Rose quarry U.B. 10% B consolidated drained strength.

Figure F.68: Granite Mountain quarry L.B. 6% A consolidated drained strength. 465

F![]()
![]()

466

Figure F.71: Granite Mountain quarry M.B. 6% B consolidated drained strength.

Figure F.72: Granite Mountain quarry M.B. 8% A consolidated drained strength. 467

F![]()
![]()

468

Figure F.75: Granite Mountain quarry M.B. 10% B consolidated drained strength.

Figure F.76: Granite Mountain quarry M.B. 12% A consolidated drained strength. 469

F![]()
![]()

470

Figure F.79: Granite Mountain quarry M.B. 14% B consolidated drained strength.

Figure F.80: Granite Mountain quarry M.B. 16% A consolidated drained strength. 471

F![]()
![]()

472

Figure F.83: Granite Mountain quarry U.B. 10% B consolidated drained strength.
473