The Washington State Department of Transportation (WSDOT) has been rehabilitating its aged portland cement concrete pavements over the last 10 years by using dowel-bar retrofit, panel replacements, and diamond grinding. These pavements have been rehabilitated, with dowel-bar retrofit, to extend the performance life beyond the original design life of 20 years. The first dowel-bar retrofit application in Washington was constructed as a test section in 1992. Since then, WSDOT has dowel-bar retrofitted more than 350 lane-kilometers. Dowel-bar retrofit performance and application are described, and lessons learned in the last 10 years are discussed.
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References
1.
Improving Load Transfer in Existing Jointed Concrete Pavements. FHWA-RD-82-154. FHWA, U.S. Department of Transportation, 1983.
2.
PierceL. M.Portland Cement Concrete Pavement Rehabilitation in Washington State: Case Study. In Transportation Research Record 1449, TRB, National Research Council, Washington, D.C., 1994, pp. 189–198.
3.
HallK. T., DarterM. I., and ArmaghaniJ. M.. Performance Monitoring of Joint Load Transfer Restoration. DTFH61-91-P-001198. FHWA, U.S. Department of Transportation, 1992.
4.
Pavement Rehabilitation Strategy Selection. TB-015. P. American Concrete Pavement Association, Skokie, Ill., 1993.
5.
LarsonR.M., PetersenD., and CorreaA.. Retrofit Load Transfer—Special Project 204. FHWA-SA-98-047. FHWA, U.S. Department of Transportation, 1998.
6.
Pavement Notebook. FHWA-PD-96-037. FHWA, U.S. Department of Transportation, 1996.
7.
MahoneyJ. P., PietzM. D., and AndersonK. W.. Summary Report on the State Pavement Technology Consortium. WA-RD 487.1. Washington State Department of Transportation, Olympia, 2000.
8.
University of California at Berkeley Pavement Research Center, Dyna-test Consulting, Inc., Washington State Department of Transportation, and University of Washington at Seattle. Goal 7 Test Plan: Dowel Bar Retrofit Rehabilitation of Rigid Pavements. California Department of Transportation, Sacramento, 2001.
