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OFFICE OF RESEARCH, DEVELOPMENT, AND TECHNOLOGY AT THE TURNER-FAIRBANK HIGHWAY RESEARCH CENTER

Multiple Corrosion-Protection Systems for Reinforced Concrete Bridge Components

Publication Information

Publication Type:
Report
Publication Number:
FHWA-HRT-11-060
Abstract:

The results presented in this report indicate that the coated bars provided superior corrosion protection to the reinforcing steel. In addition, bars with damaged coatings initiated corrosion at several times the chloride contents within concrete and typically corroded at rates two orders of magnitude less than conventional reinforcement. Limited additional protection was achieved using bars with primer coating, MC bars, and concrete containing calcium nitrite and one of the organic corrosion inhibitors, although the latter resulted in reduced compressive strength and reduced resistance to surface scaling.

Publishing Date:
November 2011
Author(s):
Darwin, David
Browning, JoAnn
Locke, Jr, Carl
Virmani, Y. Paul
O’Reilly, Matthew
Publishing Office:
Office of Infrastructure Research and Development
FHWA Program(s):
Research
Infrastructure
AMRP Program(s):
Structures
FHWA Activities:
Long-Term Bridge Performance
Subject Area:
Research
Bridges and other structures