Evaluation of Warm Mix Asphalt

This report provides details of the construction of a warm mix asphalt (WMA) test section on Interstate 90 in Washington State. The test section consists of 7,813 tons of hot mix asphalt (HMA) and 4,724 tons of WMA produced using Sasobit®. Placement of the WMA used the same equipment and procedures as the HMA and attained the same level of density. Temperature reductions of 30-50°F were achieved using Sasobit®.

A final report detailing the performance of the HMA will be prepared five years after completion of the construction.
Publication Date: 
Sunday, April 12, 2009
Publication Number: 
WA-RD 723.1
Last modified: 
10/12/2016 - 15:42
Mark Russell, Jeff Uhlmeyer, Jim Weston, Jerry Roseburg, Tim Moomaw, Joe DeVol.
Washington (State). Dept. of Transportation. Materials Laboratory
Number of Pages: 
Warm mix paving mixtures, Test sections, Paving materials, Hot mix paving mixtures, Pavement performance, Paving, Evaluation and assessment.