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Title:

Long-Term Performance of Dowel Bar Retrofit in Washington State
Cover of Long-Term Performance of Dowel Bar Retrofit in Washington State

Accession Number:

01151058

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

In 1993, Washington State Department of Transportation (WSDOT) initiated its first full-scale dowel bar retrofit (DBR) project for the repair of a severely faulted concrete pavement. While DBR has had varied success in the United States, primarily due to construction techniques, the performance in Washington State has been very good such that DBR is considered a cost effective rehabilitation treatment for faulted concrete pavements. There are several factors that contribute to longer-term performance of DBR which include: apply prior to significant fault development (ยจรป inch or less); cut DBR slots to the proper depth; limit weight of jackhammers to 30 pounds; thoroughly clean DBR slot prior to placement of patching material; and extender aggregate should be of adequate size to allow consolidation of patching material around the dowel bar. To date, WSDOT has completed approximately 280 lane miles with no major DBR design or construction related issues.

Monograph Accession #:

01147878

Report/Paper Numbers:

10-2604

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Pierce, Linda M
Muench, Stephen T
Mahoney, Joe P.

Pagination:

12p

Publication Date:

2010

Conference:

Transportation Research Board 89th Annual Meeting

Location: Washington DC, United States
Date: 2010-1-10 to 2010-1-14
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures; Photos; References (10) ; Tables (1)

Geographic Terms:

Washington (State)

Subject Areas:

Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods

Source Data:

Transportation Research Board Annual Meeting 2010 Paper #10-2604

Files:

PRP, TRIS, TRB

Created Date:

Jan 25 2010 11:15AM