CUMULATIVE DAMAGE OF ASPHALT MATERIALS UNDER REPEATED-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 from 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 levels were used. In addition, it was shown that it was possible to predict the permanent deformations 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 for both the simple-loading and compound-loading test series.

• Record URL:
  • https://library.ctr.utexas.edu/digitized/texasarchive/phase2/183-3-THD.pdf
• Supplemental Notes:
  • Prepared in cooperation with Texas Highway Dept., Austin. Planning and Research Div.
• Corporate Authors:

  University of Texas, Austin

  Center for Highway Research, 200 West 21st Street
  Austin, TX  United States  78712

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Texas State Department of Highways & Public Transportation

  Division of Planning and Research, P.O. Box 5051
  Austin, TX  United States  78763
• Authors:
  • Cowher, C E
  • Kennedy, T W
• Publication Date: 1975-1

Media Info

• Pagination: 234 p.

Subject/Index Terms

• TRT Terms: Accelerated tests; Asphalt; Asphalt mixtures; Deformation; Forecasting; Hypothesis testing; Loads; Loss and damage; Mechanical fatigue; Pavement base course; Pavements; Repeated loads; Statistical analysis; Stresses; Tension; Tension tests
• Uncontrolled Terms: Fatigue life; Hypothesis
• Old TRIS Terms: Indirect tension
• Subject Areas: Data and Information Technology; Highways; Pavements;

Filing Info

• Accession Number: 00094147
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: CFHR-3-9-72-183-3 Res. Rept., FHWA/RD-76/S0438
• Files: NTIS, TRIS, USDOT, STATEDOT
• Created Date: Mar 29 1976 12:00AM