TESTING METHODOLOGY FOR RESILIENT MODULUS OF BASE MATERIALS

Resilient moduli of base and subgrade materials are important parameters in the new pavement design method adopted by AASHTO and many state agencies. Several testing protocols for determining the resilient moduli of subgrade soils have been proposed and evaluated in the technical literature. Unfortunately, less effort has been focused on developing protocols appropriate for base materials. The main objective was to describe a resilient modulus testing procedure that has been developed for the Texas Department of Transportation. The proposed procedure contains the main steps of the AASHTO T294-92 procedure, with several exceptions. Namely, the loading sequence of the T294-92 procedure was modified to avoid subjecting the specimens to high deviatoric stresses at low confining pressures. The conditioning cycles were replaced by a procedure in which the specimen was grouted to the platens to minimize disturbance to the specimen during stage testing. The effects of end restraint on the vertical strains were mi...

[1]  C L Monismith,et al.  FACTORS INFLUENCING THE RESILIENT RESPONSE OF GRANULAR MATERIALS , 1971 .

[2]  Michael Wolfe,et al.  J+ = J , 1994, ACM SIGPLAN Notices.

[3]  Q. L. Robnett,et al.  Resilient Properties of Subgrade Soils , 1973 .

[4]  Dong-Soo Kim,et al.  ACCURACY IMPROVEMENT OF EXTERNAL RESILIENT MODULUS MEASUREMENTS USING SPECIMEN GROUTING TO END PLATENS , 1994 .

[5]  N. Meyers,et al.  H = W. , 1964, Proceedings of the National Academy of Sciences of the United States of America.

[6]  Khaled Ksaibati,et al.  FACTORS INFLUENCING THE DETERMINATION OF A SUBGRADE RESILIENT MODULUS VALUE , 1993 .

[7]  G L Dehlen.  The effect of non-linear material response on the behaviour of pavements subjected to traffic loads , 1969 .

[8]  Soheil Nazarian,et al.  METHODOLOGY FOR RESILIENT MODULUS TESTING OF COHESIONLESS SUBGRADES , 1993 .

[9]  C L Monismith,et al.  PREDICTION OF FLEXIBLE PAVEMENT DEFLECTIONS FROM LABORATORY REPEATED-LOAD TESTS , 1967 .

[10]  R W Culley.  EFFECT OF FREEZE-THAW CYCLING ON STRESS-STRAIN CHARACTERISTICS AND VOLUME CHANGE OF A TILL SUBJECTED TO REPETITIVE LOADING. , 1971 .

[11]  William N. Houston,et al.  STRESS STATE CONSIDERATIONS FOR RESILIENT MODULUS TESTING OF PAVEMENT SUBGRADE , 1993 .

[12]  A. T. Bergan,et al.  Deformation Characterization of Subgrade Soils for Highways and Runways in Northern Environments , 1975 .

[13]  Robert P Elliott,et al.  RESILIENT MODULUS AND AASHTO PAVEMENT DESIGN , 1988 .

[14]  Kiichi Tanimoto,et al.  On Resilience Characteristics of Some Soils under Repeated Loading , 1970 .

[15]  Dong-Soo Kim,et al.  A RELIABLE RESILIENT MODULUS TESTING SYSTEM , 1991 .

[16]  Manuel Louis Feliberti.  Critical evaluation of parameters affecting resilient modulus tests on subgrades , 1991 .

[17]  A T Bergan,et al.  SOME FATIGUE CONSIDERATIONS IN THE DESIGN OF ASPHALT CONCRETE PAVEMENTS , 1973 .

[18]  M Karasahin,et al.  APPLICABILITY OF RESILIENT CONSTITUTIVE MODELS OF GRANULAR MATERIAL FOR UNBOUND BASE LAYERS , 1993 .

[19]  Kenneth H. Stokoe,et al.  DEVELOPMENT OF A RELIABLE RESILIENT MODULUS TEST FOR SUBGRADE AND NON-GRANULAR SUBBASE MATERIALS FOR USE IN ROUTINE PAVEMENT DESIGN. FINAL REPORT , 1992 .

[20]  Dar-Hao Chen,et al.  RESILIENT MODULI OF AGGREGATE MATERIALS: VARIABILITY DUE TO TESTING PROCEDURE AND AGGREGATE TYPE , 1994 .

[21]  C. Chan,et al.  RESILIENCE CHARACTERISTICS OF SUBGRADE SOILS AND THEIR RELATION TO FATIGUE FAILURES IN ASPHALT PAVEMENTS , 1962 .

[22]  C L Monismith,et al.  CHARACTERIZATION OF SUBGRADE SOILS IN COLD REGIONS FOR PAVEMENT DESIGN PURPOSES , 1973 .

[23]  A T Bergan,et al.  CHARACTERIZATION OF FREEZE-THAW EFFECTS ON SUBGRADE SOILS , 1973 .

[24]  Andrew Dawson,et al.  FIELD AND LABORATORY EVALUATION OF THE MECHANICAL BEHAVIOR OF UNBOUND GRANULAR MATERIALS IN PAVEMENTS , 1993 .

[25]  Gonzalo R. Rada,et al.  COMPREHENSIVE EVALUATION OF LABORATORY RESILIENT MODULI RESULTS FOR GRANULAR MATERIAL , 1981 .