This document was prepared under the auspices of the AASHTO-AGC-ARTBA Joint Committee by Task Force 32 of the Subcommittee on New Highway Materials. The goal of the Task Force is to catalogue and evaluate concrete corrosion protection systems and develop criteria, specifications and construction procedures that will improve the ability of concrete superstructure and substructure elements (excluding highway pavements) to withstand corrosive environments, and the corrosive effects of chlorides from deicing chemicals or salt water.

Corrosion of reinforcing steel in bridge decks has been recognized as a national problem that causes both structural and rideability problems. More recently, an even more serious problem has surfaced with other loadcarrying members of highway structures evincing the same destructive effects of corrosion noted in bridge decks. The measures for bringing this problem under control involve considerations in new construction as well as rehabilitation of the present inventory. These protection methods that act to delay or offset the effects of chloride infiltrations include epoxy coated bars, inhibitors, additives. The objective of this study was to document the types of systems being used for this purpose, noting the differences in techniques. Successes and failures of these systems are noted by providing the technical evaluation results for each system.

The Task Force No. 32 document was submitted to the AASHTO Committee for "New Highway Materials" for approval in 1992. Copies are available through AASHTO for anyone requesting a copy.

Showcase workshops on methodologies for reinforced concrete removal, repair, protection and rehabilitation.

Published in 1995 and distributed by AASHTO: Guide Specifications for Cathodic Protection of Concrete Bridge Decks, AASHTO-AGC-ARTBA, Task Force #29.

Published in 1992 and distributed by AASHTO: Manual for Corrosion Protection of Concrete Components in Bridges, AASHTO-AGC-ARTBA, Subcommittee on New Materials, Task Force #32.

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U.S. Department of Transportation
Federal Highway Administration