PRACTICAL APPLICATION OF FATIGUE AND RUTTING TESTS ON BITUMINOUS BASE MIXES

The paper discusses both the fatigue and rutting characteristics of two types of asphalt concrete base course mixes presently used by the Georgia Department of Transportation. Variables studied include level of compaction effort used in the Marshall Mix Design Method, asphalt content, aggregate gradation and type, asphalt viscosity and the influence of flyash and portland cement mineral filler. Fatigue properties are measured using a rectangular beam specimen supported on a rubber (elastic) subgrade. Rutting characteristics of the mixes are determined using both the Shell creep test and also the repeated load triaxial test. A simplified theory for predicting rut depth is developed suitable for use in design method or for evaluating new materials. Finally, the significance of the test results are considered in terms of practical design implications.

  • Supplemental Notes:
    • From the Technical Session, Lake Buena Vista, Florida, 13-15 February 1978.
  • Corporate Authors:

    University of Minnesota, Minneapolis

    155 Experimental Engineering Building
    Minneapolis, MN  USA  55455
  • Authors:
    • BARKSDALE, R D
  • Conference:
  • Publication Date: 1978

Media Info

  • Features: References;
  • Pagination: p. 115-159
  • Serial:
    • Volume: 47

Subject/Index Terms

Filing Info

  • Accession Number: 00197205
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Sep 15 1979 12:00AM