An Initial Evaluation of the WSDOT Quality Assurance Specifications for Asphalt Concrete

The Washington State Department of Transportation (WSDOT) did a trial implementation of a quality assurance (QA) specification for asphalt concrete during the 1989 paving season. To assess the QA specification, data from both non-QA and QA projects built that year were compared. Based on these results, the QA projects were evaluated as having improved quality. Subsequently, the QA specification was fully implemented within WSDOT.


Publication Date: 
Friday, April 1, 1994
Publication Number: 
WA-RD 326.1
Last modified: 
10/12/2016 - 15:42
Stephen J. Markey, Joe P. Mahoney, Robert H. Gietz.
Washington State Transportation Center (TRAC)
Number of Pages: 
Asphalt concrete, Evaluation, Improvements, Quality assurance, Specifications.