CRUMB RUBBER MODIFIED ASPHALT CONCRETE IN OREGON

Since 1993, the Oregon Department of Transportation (ODOT) has been monitoring performance of seventeen rubber modified asphalt and asphalt concrete sections constructed on Oregon highways. The study originated in response to the Intermodal Surface Transportation Efficiency Act (ISTEA, 1991) which mandated the use of tire rubber in pavements. The ISTEA requirement was eventually repealed, however, the study continued to document pavement performance in an effort to determine if rubber modified asphalt concrete pavements are feasible in terms of construction and life cycle cost. The rubber modified sections that performed the worst included those constructed using the dry process (rubber modified asphalt concrete - RUMAC). The sections performing the best included open graded mixes constructed using the binder PBA-6GR (a rubber modified asphalt). After five years, the PBA-6GR pavements were performing as well or better than the control sections. The cost of the mixes constructed in 1993 and 1994 with PBA-6GR was about 12% more than the control sections. Over the life of the pavement, the terminal blend asphalt rubber (PBA-6GR) may be cost effective. This report documents the performance of the rubber modified and control sections including distress information, skid and ride data and laboratory testing results. In addition, non-ODOT projects were reviewed and discussed.

• Record URL:
  http://www.asphaltrubber.org/ari/Performance/Oregon_Performance_March_2002.pdf
• 
• Corporate Authors:

  Oregon Department of Transportation

  Research Section, 200 Hawthorne Avenue, SE, Suite B-240
  Salem, OR  United States  97301-5192

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Hunt, E A
• Publication Date: 2002-3

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 38 p.

Subject/Index Terms

• TRT Terms: Asphalt concrete pavements; Asphalt pavements; Construction; Crumb rubber; Laboratory tests; Life cycle costing; Pavement distress; Pavement performance; Rubber; Skid resistance; Smoothness; Tires
• Geographic Terms: Oregon
• Subject Areas: Construction; Finance; Geotechnology; Highways; Materials; Vehicles and Equipment; I31: Bituminous Binders and Materials; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00922904
• Record Type: Publication
• Report/Paper Numbers: FHWA-OR-RD-02-13,, SPR 355, Final Report
• Files: TRIS, USDOT, STATEDOT
• Created Date: Apr 12 2002 12:00AM