Scrap tire rubber was mixed into an asphalt concrete wearing course to study the effect of ice disbonding from the pavement surface under traffic. Rubber contents of 0, 3, 6, and 12% by weight were studied. Initial laboratory ice disbonding test results led to the development of a new paving material, Chunk Rubber Asphalt Concrete (CRAC), that uses larger pieces of rubber in a much denser asphalt concrete mix. Strength values doubled and ice disbonding performance was enhanced.

  • Supplemental Notes:
    • This research was sponsored by Michigan Technological University, Houghton, Michigan, and the Strategic Highway Research Program, Washington, D.C.
  • Corporate Authors:

    U.S. Army Cold Regions Research and Engineering Laboratory

    72 Lyme Road
    Hanover, NH  United States  03755-1290

    Midwest Research Institute

    425 Volker Boulevard
    Kansas City, MO  United States  64110-2299
  • Authors:
    • Eaton, R A
    • Roberts, R J
    • Blackburn, R R
  • Publication Date: 1991-12

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 21 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00620392
  • Record Type: Publication
  • Report/Paper Numbers: Special Report 91-27
  • Contract Numbers: SHRP Contract H-204
  • Files: TRIS
  • Created Date: Mar 31 1992 12:00AM