Wednesday, March 19, 2008 - 2:25 PM
Convention Center, Second Level, R01 (Ernest N. Morial Convention Center)
08311

Corrosion of Epoxy Coated Rebar in Cracked Marine Substructure Concrete

Kingsley Lau and Alberto Sagues, University of South Florida; Rodney G. Powers, Florida Dept of Transportation

The corrosion condition of Florida marine bridge substructures with epoxy coated reinforcement were investigated after approximately 20 years of service. Chloride ion penetration through thin structural cracks to the reinforcement surface may lead to early corrosion initiation.  Initial results from bridges built with otherwise low permeability concrete show varying performance at crack locations ranging from little to significant corrosion. Service life predictions based on corrosion initiation and propagation concepts with consideration of cracks will be made to evaluate repair and rehabilitation needs.  

See more of Rehabilitation of Reinforced Concrete Structures by Electrochemical and Other Techniques and Corrosion Protection Strategies for Construction - Session 1
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See more of The CORROSION 2008 Conference and Expo (March 16-20, 2008)