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Title: Repair Methods of Chloride-Induced Corrosion of Reinforced Concrete During 10 Years’ Exposure

Author(s): H. Edahiro, K. Fujii, Y. Masuda, T. Kemi, T. Inoue, and H. Jitousono Keywords: concrete (reinforced); corrosion; mortar; repair

Publication: Symposium Paper

Volume: 193


Appears on pages(s): 163-178

Keywords: concrete (reinforced); corrosion; mortar; repair

DOI: 10.14359/5820

Date: 8/1/2000

Three repair mortars were compared in terms of chloride attack preventive capability to propose an appropriate repair method applicable to the damaged concrete structure by chloride-induced corrosion. The repair methods were the cover replacement method and the surface coating method. The ability of these two methods to prevent corrosion were compared in terms of corrosion area and mass loss after 10 years’ outdoor exposure. It was proven that the cover replacement method extending over the backside of reinforcing steel using SBR polymer cement mortar with a corrosion inhibitor was effective while the surface coating method was applicable when the amount of chloride in concrete structures was excessive.


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