Evaluation of the Performance of Warm Mix Asphalt in Washington State

Warm mix asphalt (WMA) is a relatively new and emerging technology for the asphalt industry. It offers potential construction and environmental advantages over traditional hot mix asphalt (HMA). However, WMA must perform at least as well as HMA before it can be used to replace HMA. This study evaluates the performance of HMA and WMA mixes obtained from various field sites in the state of Washington. Different WMA technologies are examined in four separate projects; these technologies include Sasobit® and three water foaming technologies, Gencor® Green Machine Ultrafoam GX®, Aquablack™ and water injection. Performance tests are conducted on the cores and extracted binders to evaluate the resistance of HMA and WMA samples to fatigue and thermal cracking, rutting and moisture susceptibility. Additionally, the early-age field performance of WMA and HMA control pavements is compared.

• Record URL:
  http://www.wsdot.wa.gov/research/reports/fullreports/789.1.pdf
• 
• Corporate Authors:

  Washington State University, Pullman

  Department of Civil and Environmental Engineering
  Pullman, WA  United States  99164-2910

  Washington State Department of Transportation

  Office of Research and Library Services
  Olympia, WA  United States  98504-7372

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Bower, Nathan
  • Wen, Haifang
  • Willoughby, Kim
  • Weston, Jim
  • DeVol, Joe
• Publication Date: 2012-10

Language

• English

Media Info

• Media Type: Web
• Edition: Final Report
• Features: Figures; Photos; References; Tables;
• Pagination: 103p

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Asphalt pavements; Cracking of asphalt concrete pavements; Fatigue tests; Foamed asphalt; Hot mix asphalt; Pavement performance; Rutting; Warm mix paving mixtures
• Uncontrolled Terms: Moisture susceptibility; Water injection
• Geographic Terms: Washington (State)
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01454096
• Record Type: Publication
• Report/Paper Numbers: WA-RD 789.1
• Contract Numbers: T4120-21
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Nov 15 2012 2:01PM