Assessment of Warm Mix Technologies for Use with Asphalt Rubber Paving Applications

Warm mix asphalt (WMA) is the name given to certain technologies that reduce the production and placement temperatures of asphalt mixes. In the United States, WMA is a relatively new technology; however, European countries have used this technology since the mid 1990’s. Asphalt Rubber (AR) has been used in the United States since 1960s. The field blended asphalt rubber normally requires higher production and compaction temperatures. This paper evaluates whether there are any benefits of using warm mix technologies with AR hot mixes. The potential savings in energy and reduction in Green House Gas emissions could be great. The paper includes a brief literature review and a survey of users of WMA in the United States. Then it concentrates the research on the use of warm mix technologies with AR in California including, Route 152 near Santa Clara, Interstate 5 near Santa Nella, Interstate 5 near Orland, CA-94 in San Diego, SR-101 in Fortuna, SR-70 in Marysville, SH 99 in Sutter County. The overall field testing and research results demonstrate that there are a wide range of benefits which can be attained by using warm mix technology in AR mixes. These may include reduced fuel usage and emissions, compaction aid, longer paving season, night paving, long hauling distances, and improved working conditions.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Cheng, DingXin
  • Hicks, R Gary
  • Teesdale, Tyson
• Conference:
  • Transportation Research Board 90th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2011-1-23 to 2011-1-27
• Date: 2011

Language

• English

Media Info

• Media Type: DVD
• Features: Maps; Photos; References; Tables;
• Pagination: 22p
• Monograph Title: TRB 90th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Asphalt rubber; Benefits; Compaction; Field tests; Greenhouse gases; Materials; Paving; Technological innovations; Warm mix paving mixtures
• Uncontrolled Terms: Fuel savings
• Geographic Terms: California
• Subject Areas: Highways; Materials; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 01336779
• Record Type: Publication
• Report/Paper Numbers: 11-3599
• Files: TRIS, TRB
• Created Date: Apr 18 2011 12:24PM