The Washington State Department of Transportation (WSDOT) has completed construction of twenty-four hot-mix recycle projects as of January, 1985. At the beginning of this study there were sixteen completed projects that were to be examined. Evaluation of the laboratory and pavement performance data shows that WSDOT's initial two projects, Renslow to Ryegrass (1977) and Yakima River to West Ellensburg Interchange (1978), are still performing very well. Although the other fourteen projects have been constructed only within the last two and a half years, the early data indicates equally promising results. Because of the impressive pavement performance exhibited by the recycled pavements, together with hot-mix recycle benefits such as conservation of natural resources, feasibility of construction, and its cost advantage over new ACP, hot-mix recycling has become an attractive addition to the WSDOT paving program.
November 29, 2007
A.J. Peters, R.H. Gietz, J.P. Walter.
Washington (State). Dept. of Transporation. Materials Laboratory.
- # of Pages: 40 p., 576 KB (PDF)
- Subject: Asphalt concrete, Economics, Evaluation, Hot mix paving mixtures, Pavement performance, Recycling.
- Keywords: Asphalt concrete, asphalt, recycling, rejuvenating agents, Washington (State)
- Related Publications: Hot Mix Recycling Evaluation in Washington: Appendix, Project Evaluations, (WA-RD 98.2).
This abstract was last modified April 29, 2008