CORRELATION OF TENSILE PROPERTIES WITH STABILITY AND COHESIOMETER VALUES FOR ASPHALT-TREATED MATERIALS

A LABORATORY STUDY IS DESCRIBED CORRELATING HVEEM STABILITY AND COHESIOMETER VALUES FOR ASPHALTIC CONCRETES TO TENSILE STRENGTH AT FAILURE, ESTIMATED TENSILE STRAIN AT FAILURE, A CALCULATED POISSON'S RATIO AND MODULUS OF ELASTICITY DETERMINED BY INDIRECT TENSILE STRENGTH TESTS. STABILITY AND COHESIOMETER TESTS WERE CONDUCTED AT 140 F WHILE THE INDIRECT TENSILE TEST WERE CONDUCTED AT 75 F. A ONE-QUARTER FACTORIAL EXPERIMENT INCLUDED THE VARIABLES: ASPHALT VISCOSITY; AGGREGATE TYPE AND GRADATIONS; AND, ASPHALT CONTENT. CORRELATION COEFFICIENTS WERE LOW. ACCEPTABLE CORRELATIONS PROBABLY EXIST BETWEEN COHESIOMETER VALUES AND MODULES OF ELASTICITY, TENSILE STRENGTH AND TENSILE STRAIN. ALSO BETWEEN STABILITY AND TENSILE STRAIN AND CALCULATED POISSON'S RATIO. USERS OF CORRELATIONS SHOULD RECOGNIZE LIMITATIONS IMPOSED BY CONFINES OF THE EXPERIMENT. FOR TEXAS HIGHWAY DEPARTMENT STANDARD TEST CONDITIONS, THE ONLY ACCEPTABLE CORRELATION FOUND WAS BETWEEN MODULUS OF ELASTICITY AND COHESIOMETER VALUE. /AUTHOR/

  • Corporate Authors:

    University of Texas, Austin

    Cockrell Hall
    Austin, TX  USA  78712

    Texas State Department of Highways & Public Transp

    11th and Brazos Streets
    Austin, TX  USA  78701

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  USA  20590
  • Authors:
    • Hadley, W O
    • Hudson, W R
    • Kennedy, T W
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00230490
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: Jul 14 1970 12:00AM