EVALUATION OF THE PERFORMANCE OF COLD-MIX RECYCLED ASPHALT CONCRETE PAVEMENT IN WASHINGTON. FINAL REPORT

Often upgrading an aged asphalt concrete pavement involves overlaying a cracked pavement with new asphalt concrete. However, usually the substrate cracks reflect through the new overlay under repeated service loading. Full depth cold-mix recycled asphalt concrete is an alternative that eliminates the potential for reflective cracking. Generally, the performance of cold-mix recycled asphalt concrete pavements in the United States supports its use as base course in flexible pavements. The conditions of three Washington experimental "cold-mix" pavements after about 6 years of service varied from fair to good, depending on the level of truck traffic. The wheeltrack rutting of those pavements was not significantly different from rutting that might be expected from conventional flexible pavements under the same conditions. Although the potential for fatigue cracking exists, as it does in conventional flexible pavements, full depth recycling of asphalt concrete eliminates the cause of reflective cracking.

• Record URL:
  http://www.wsdot.wa.gov/research/reports/fullreports/201.1.pdf
• 
• Corporate Authors:

  University of Washington, Seattle

  Seattle, WA  United States  98195

  Washington State Department of Transportation

  Transportation Building, 310 Maple Park Avenue SE, P.O. Box 47300
  Olympia, WA  United States  98504-7300

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Babaei, K
  • Walter, J P
• Publication Date: 1989-12

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 67 p.

Subject/Index Terms

• TRT Terms: Asphalt concrete; Base course (Pavements); Cold in-place recycling; Cold weather; Flexible pavements; Full-depth asphalt pavements; Pavement performance; Recycling; Reflection cracking
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00491292
• Record Type: Publication
• Report/Paper Numbers: WA-RD 201.1
• Contract Numbers: GC8286, Task 13
• Files: TRIS, USDOT, STATEDOT
• Created Date: Feb 28 1990 12:00AM