Corrosion resistance performance of fusion bonded epoxy coated rebars used as reinforcement in concrete structures

Abstract

During 70's the Fusion Bonded Epoxy Coated Rebars (FBECR) were considered as one of the most foolproof technique to combat corrosion of steel bars embedded in structures situated in coastal areas. In view of this thousands of structures were erected in U.S., Canada and Middle East countries using these rebars. Unfortunately many of these structures started showing distress within 10-15 years of their erection. This was surprising to users, scientists, engineers as well as to contractors responsible for erection of structures. as FBECR were introduced after very thorough research work. This led to very extensive studies by researchers all over the world and number of research papers had appeared in research journals as well as in the form of reports. These studies included causes of failure, lacunae in characterization of FBECR prior to acceptance and other factors. Since no systematic review is available in literature on the titled subject, it was felt important to have a critical review on the subject and analyze the reports/research papers appeared at different sources.