Effect of Curing Conditions on the Characteristics of Chloride Ion Diffusion in Concrete

콘크리트의 염소이온 확산특성에 미치는 양생조건의 영향

  • 임병탁 (안동대학교 토목환경공학과) ;
  • 배수호 (안동대학교 토목환경공학과) ;
  • 정영수 (중앙대학교 토목공학과) ;
  • 심은철 (안동대학교 토목환경공학과) ;
  • 하재담 (쌍용양회공업㈜기술연구소)
  • Published : 2003.05.01

Abstract

The chief factors for the penetration and diffusion of chloride ions in concrete are water-cement ratio(W/C), aging, curing conditions, chloride ions concentration of given environment., wet and dry conditions and etc. In this study, of these factors effect of curing conditions such as standard and outdoor curing on the characteristics of chloride ions diffusion in concrete were researched when environmental factors for the penetration and diffusion of chloride ions were constant. For this purpose, the voltages passing through the diffusion cell were measured by using accelerated test method using potential difference, and then diffusion coefficients of chloride ions by using Andrade's method were estimated for 44%, 49.5% and 60% of w/c, respectively. As a result., according to curing conditions correlation among diffusion coefficients of chloride ions, W/C and aging were concluded through multiple regression model.

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