Epoxy-coated bars as corrosion control in cracked reinforced concrete

  1. Get@NRC: Epoxy-coated bars as corrosion control in cracked reinforced concrete (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1002/maco.201106319
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Journal titleMaterials and Corrosion
Pages599608; # of pages: 10
SubjectAdhesion test; Corrosion current densities; Corrosion potentials; Cracked concretes; Epoxy coatings; Adhesion; Chlorine compounds; Coatings; Concrete slabs; Corrosion; Cracks; Epoxy resins; Reinforcement; Software testing; Concretes
AbstractOne of the most common corrosion protection methods in reinforcing concrete bars is the application of fusion-bonded epoxy coatings. Although considerable research has been carried out on the performance of epoxy-coated bars (ECR), there are still many uncertainties about their performance in cracked concrete. In this experimental program, reinforcing steel bars with six types of epoxy coatings embedded in concrete slabs with a 0.4 mm wide preformed crack intersecting the reinforcing steel at right angles were tested. Results of corrosion potentials, corrosion current density, coating adhesion tests, chloride content, and visual examination after 68 months of exposure to a simulated marine environment are reported. Results revealed that under the studied conditions the ECR did not provide total protection of steel reinforcement in cracked concrete. Their use however, tended to reduce significantly the damage caused by the chloride-induced corrosion when compared with the uncoated bars embedded in concrete with similar characteristics. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Publication date
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Information Technology (IIT-ITI)
Peer reviewedYes
NPARC number21269766
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Record identifier40c0ee03-d9b9-492a-9e07-9638cfff1ef9
Record created2013-12-13
Record modified2016-05-09
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