PERMANENT DEFORMATION AND FATIGUE PROPERTIES OF POLYMER MODIFIED ASPHALT MIXES

An investigation was undertaken to evaluate permanent deformation and fatigue characteristics of polymer modified asphaltic mixes. The investigation included a laboratory testing program and a field evaluation of performance using an accelerated loading facility (ALF). Binders evaluated included the polymer types commonly used in Australia for hot mix applications. Mix testing included wheel tracking at 60 deg C to examine permanent deformation and beam testing for fatigue characterisation. Results of ALF trafficking shows the permanent deformation of the polymer modified mixes is lower than conventional mixes both in magnitude and in rate of deformation. Laboratory wheel tracking is shown to correlate well with ALF results. Compaction has a large influence on both fatigue and elastic properties of asphalt mixes. Using the Shell fatigue relation as an indicator of field fatigue performance of bituminous mixes, relative fatigue multipliers for the various polymer modified binders were estimated. Finally binder parameters which best correlate with permanent deformation and fatigue properties are discussed.

  • Supplemental Notes:
    • This conference was arranged by the International Society for Asphalt Pavements. The ninth conference will be held in Copenhagen, Denmark in August 2002.
  • Corporate Authors:

    University of Washington, Seattle

    Department of Civil and Environmental Engineering, P.O. Box 352700
    Seattle, WA  United States  98195-2700
  • Authors:
    • Maccarrone, S
    • KY, A V
    • GNANASEELAN, G P
  • Conference:
  • Publication Date: 1997

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 1545-54

Subject/Index Terms

Filing Info

  • Accession Number: 00764741
  • Record Type: Publication
  • Report/Paper Numbers: Volume II
  • Files: TRIS, ATRI
  • Created Date: Jun 17 1999 12:00AM