Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Effect of Applied Voltage and Resistivity on the Characteristics of Chloride Ions Diffusion in Concrete

적용 전압 및 저항이 콘크리트의 염소이온 확산특성에 미치는 영향

  • 임병탁 (안동대학교 토목환경공학과) ;
  • 배수호 (안동대학교 토목환경공학) ;
  • 정영수 (중앙대학교 토목공학) ;
  • 김진영 (안동대학교 토목환경공학) ;
  • 심은철 (안동대학교 토목환경공학) ;
  • 하재담 (쌍용양회공업(주) 기술연구소)
  • Published : 2002.10.01
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Abstract

There are various methods for the electrochemical techniques to estimate diffusion coefficient of chloride ions in concrete, such as ASTM C 1202 test method, Andrade's method, Dhir's method, Tang's method, and etc. In the case of estimating diffusion coefficient of chloride ions in concrete by using these methods, applied voltage and resistivity nay exercise some influence on the characteristics of chloride ions diffusion. Thus. in this study, effect of applied voltage and resistivity on the characteristics of chloride ions diffusion in concrete were researched by applying voltage in 12V, 30V, and 60V, and by using resistivity in 0.2Ω and 1.0Ω, respectively. It can be concluded that diffusion coefficient of chloride ions are found to be increasing as the individual applied voltage and resistivity decrease, when water-cement ratio is constant.

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