Abstract

Anti-corrosion behaviour of rebar embedded in cement mortar containing chloride ions was investigated by electrochemical chloride extraction(ECE). of the initial chloride ions of the cement mortar was fixed to Friedel salts and the soluble chloride ions were successfully extracted by ECE method. Concentration profiles of the chloride ions were estimated by Fick's 2nd law with time and depth, and it was close to the real value. The corrosion potential increased to anodic direction after ECE test, and the corrosion of rebar was reduced as a result of AC impedance spectroscopy.

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