RELATIONSHIP OF FATIGUE TO THE TENSILE STIFFNESS OF ASPHALTIC CONCRETE. PHASE 1; LABORATORY INVESTIGATION

THE CORRELATION BETWEEN ASPHALTIC CONCRETE TENSILE STIFFNESS AND FATIGUE LIFE WAS DETERMINED IN THE LABORATORY. CONSTANT STRAIN FATIGUE TESTS WERE UTILIZED AND INDIRECT TENSILE TESTS WERE SELECTED BECAUSE OF THEIR SIMPLICITY AND APPLICABILITY. FOUR ASPHALTIC CONCRETE MIXES OF DIFFERENT STIFFNESSES WERE TESTED UNDER CONSTANT STRAIN FATIGUE AND INDIRECT TENSION. EACH MIX WAS FATIGUE TESTED AT SEVERAL STRAIN LEVELS IN ORDER THAT A STRAIN--FATIGUE LIFE RELATIONSHIP COULD BE DEVELOPED. THIS ENABLED THE CORRELATION OF TENSILE STIFFNESS AND FATIGUE LIFE AT ANY OF THE STRAIN LEVELS USED IN THE TESTS. A CORRELATION BETWEEN TENSILE STIFFNESS AND FATIGUE LIFE WAS PLOTTED. THE INFORMATION GATHERED INDICATES THAT IT MAY BE POSSIBLE TO PREDICT THE FATIGUE SUSCEPTIBILITY OF A MIXTURE WITH A SIMPLE INDIRECT TENSION TEST. THE FATIGUE LIFE OF A SURFACE MIXTURE WAS REDUCED BY ARTIFICIAL AGING AND WAS ALTERED BY USING ASPHALT CEMENTS OF DIFFERENT HARDNESSES. /AUTHOR/

  • Record URL:
  • Supplemental Notes:
    • Vhrc 70-r41, FINAL RPT, 19 PP, 5 FIG, 2 TAB, 9 REF, 1 APP
  • Corporate Authors:

    Virginia Highway Research Council

    Charlottesville, VA  United States 
  • Authors:
    • Maupin, G W
  • Publication Date: 1971-5

Subject/Index Terms

Filing Info

  • Accession Number: 00211698
  • Record Type: Publication
  • Files: NTL, TRIS
  • Created Date: Nov 8 1971 12:00AM