Effect of Ground Tire Rubber Particle Size and Grinding Method on Asphalt Binder Properties

Ground tire rubber (GTR) can be used as a modifier to asphalt cement. This enhancement can improve pavement performance and help keep scrap tires out of landfills. This report looks at the grinding methods used to produce crumb rubber from GTR, the resulting crumb rubber properties, and the effects on asphalt binder performance. The methods examined include: crackermill process; granulator process; micromill process; and cryogenic process. Fourteen GTR asphalt binders were created and tested using multiple stress creep recovery, separation tube testing, and Ring-and-Ball softening point testing.

  • Record URL:
  • Corporate Authors:

    National Center for Asphalt Technology

    Auburn University, 277 Technology Parkway
    Auburn, AL  United States  36830
  • Authors:
    • Willis, J Richard
    • Plemons, Clayton
    • Turner, Pamela
    • Rodezno, Carolina
    • Mitchell, Tyler
  • Publication Date: 2012-10


  • English

Media Info

  • Media Type: Web
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 47p

Subject/Index Terms

Filing Info

  • Accession Number: 01482788
  • Record Type: Publication
  • Report/Paper Numbers: 12-09
  • Files: TRIS
  • Created Date: May 14 2013 11:10AM