Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)

The Korean Institute of Building Construction (한국건축시공학회)
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An Experimental Study on Measurement of Corrosion Initiation in Reinforced Concrete Exposed to Chloride Using EIS Method

EIS를 이용한 염해에 노출된 철근콘크리트의 부식개시 측정에 관한 실험적 연구

  • 박동진 (한양대학교 대학원 건축시스템공학과) ;
  • 박장현 (한양대학교 대학원 건축시스템공학과) ;
  • 이광수 (여주대학교 건축과) ;
  • 이한승 (한양대학교 건축학부)
  • Published : 2017.11.16
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Abstract

In this study, the initiation of steel corrosion was monitored due to chloride attack using embedded sensor. In general, Steel bars embedded in concrete are protected from corrosion by being forming a passive film on the surface. However, the passive film is destroyed by chemical erosion such as concrete carbonation and chloride penetration, and the rebar is exposed to the deteriorating factor and corrosion proceeds. In order to realize the initiation of steel corrosion, OCP and change of Impedance parameter were observed by using Half-cell and EIS method depending on cover depth. As result, 10mm cover showed the impedence increased in 6weeks.

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