A THERMOVISCOELASTIC CHARACTERIZATION OF AN ASPHALTIC CONCRETE

THE THERMOVISCOELASTIC CHARACTERIZATION IS PRESENTED OF TWO TYPES OF ASPHALTIC CONCRETE TESTED IN UNIAXIAL COMPRESSION AND TENSION AT VARIOUS STRAIN RATES AND TEMPERATURES. THE FIRST MIXTURE WAS PREHEATED, MIXED, AND COMPACTED AT 300 F. THE SECOND MIXTURE WAS PREHEATED, MIXED, AND COMPACTED AT 450 F. THE DATA REDUCTION AND RESULTS FOR 55 TESTS ARE GIVEN. THE TEST CONDITIONS WERE CONSTANT STRAIN RATE LOADING OVER 5 DECADES OF RATE AND A TEMPERATURE RANGE OF -50 TO 150 F. FUNDAMENTAL MATERIAL PROPERTIES (ULTIMATE STRAIN, ULTIMATE STRESS, ULTIMATE SECANT MODULUS, AND INITIAL TANGENT MODULUS) WERE OBTAINED IN TWO OF THE FUNDAMENTAL LOADING MODES, NAMELY, UNIAXIAL TENSION AND UNIAXIAL COMPRESSION. ULTIMATE STRESS DOES NOT SEEM TO BE A SUITABLE FAILURE CRITERIA FOR FLEXIBLE CONCRETE DUE TO THE EVIDENCE AND FACTS PRESENTED; HOWEVER, ULTIMATE STRAIN APPEARS TO BE A SUITABLE FAILURE CRITERIA. /AUTHOR/

  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  USA  76011

    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:
    • Bynum, D
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00210444
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: Sep 28 1970 12:00AM