An Experimental Study on the Corrosion Characteristics of Reinforcing Steel in Concrete by the Accelerated Corrosion Test

부식촉진시험에 의한 콘크리트 내의 철근의 부식특성에 관한 실험적 연구

  • 배수호 (안동대학교 토목환경공학과) ;
  • 정영수 (중앙대학교 토목공학과 ) ;
  • 김년산 (안동대학교 토목환경공학과) ;
  • 권영우 (안동대학교 토목환경공학과) ;
  • 권혁진 (안동대학교 토목환경공학과)
  • Published : 2000.10.01

Abstract

The corrosion protection methods of reinforcing steel in concrete are the various methods such as increasing thickness of cover concrete, using of reinforcing bars coated with epoxy, dosage of corrosion inhibitor as concrete admixture, cathodic protection method and etc. In this study, the performance of corrosion protection was investigated for the test specimens using corrosion inhibitors and cathodic protection, respectively. For this purpose, the accelerated corrosion tests for reinforcing steel were conducted according to the periodic cycles(140 days) of wetting($65^{\circ}C$, 90% R.H) and drying period($15^{\circ}C$, 65% R.H) for the test specimens. As a result, it can be concluded from the test that the effect of corrosion inhibitor was found to be variable with products, the cathodic protection method was found to be independent of salt concentration in concrete.

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