COMMULATIVE DAMAGE OF ASPHALT MATERIALS UNDER REPEAT-LOAD INDIRECT TENSION

This report summarizes the results of an investigation of the applicability of Miner's Hypothesis to the fatigue data which were obtained using the dynamic indirect tensile test. Relationships between fatigue life and stress were established for simple-loading fatigue data drom which Miner's Hypothesis could be verified for compound-loading fatigue life prediction. The hypothesis was evaluated experimentally by conducting compound-loading fatigue tests in which two stress level were used. In addition, it was shown that it was possible to predict the permanent deformation which occur under two-level compound loading conditions from the simple summation of damage increments from simple-loading permanent deformation curves. Statistical estimates of the fatigue life of the asphalt mixtures investigated are presented from both the simple-loading and compound-loading test series.

  • Supplemental Notes:
    • Work done in corporation with the Federal Highway Administration, Department of Transportation.
  • Corporate Authors:

    University of Texas, Austin

    Center for Highway Research, 200 West 21st Street
    Austin, TX  United States  78712
  • Authors:
    • Cowher, C E
    • Kennedy, T W
  • Publication Date: 1975-1

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 242 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00129037
  • Record Type: Publication
  • Report/Paper Numbers: CFHR 3-9-72-183-3 Intrm Rpt.
  • Contract Numbers: 3-9-72-183-3
  • Files: TRIS
  • Created Date: Mar 10 1976 12:00AM