Corrosion Mechanism of Reinforcing Steel in Ceramic Mortar

세라믹스 몰탈내의 철근 부식 메카니즘

  • Received : 2001.02.09
  • Published : 2001.08.25

Abstract

The corrosion behaviors of reinforcing steels were investigated under chloride ion contained in cement mortar including gypsum by the implementation of half cell potential measurement, EPMA analysis, exterior features, weight loss and extraction experiment. The acceleration test equipment accelerated corrosion of mild steel bar in a short period of time. From observing the exterior features and weight loss, we could evaluate the measure of corrosion. Also, from the extraction experiment of ${SO_4}^{2-}$ with $Cl^-$ ions contained in the ceramic mortar, we concluded that ${SO_4}^{2-}$ ion affected more on the corrosion mechanism in comparison to pH.

Keywords

corrosion behaviors;cement mortar;gypsum mortar