An Experimental Study on the Corrosion Protection Method of Reinforcing Steel in Concrete by Using Corrosion Inhibitor

방청제에 의한 콘크리트 내의 철근 방식법에 관한 실험적 연구

  • 배수호 (안동대학교 토목환경공학과) ;
  • 정영수 (중앙대학교 토목공학과) ;
  • 권영우 (안동대학교 토목환경공학과) ;
  • 김년산 (안동대학교 토목환경공학과) ;
  • 권혁진 (안동대학교 토목환경공학과)
  • Published : 2000.04.01

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. The most economical method of them will be the corrosion protection method using corrosion inhibitor as concrete admixture. Therefore, the purpose of this research is to investigate the performance of corrosion protection of ordinary strength and high strength concrete using corrosion inhibitor, respectively. For this purpose, after manufacturing ordinary strength and high strength concrete with and without corrosion inhibitor, the accelerated corrosion tests for reinforcing steel were conducted according to the periodic cycles (140 day) of wetting ($65^{\circ}C$, 90% R.H.) and drying period ($15^{\circ}C$, 65% R.H.). As a result, th high strength concrete using corrosion inhibitor showed an excellent performance of corrosion protection.

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