A Study on the Deterioration Prediction Method of Concrete Structures Subjected to Cyclic Freezing and Thawing

동결융해 작용을 받는 콘크리트 구조물의 내구성능 저하 예측 방법에 관한 연구

  • 고경택 (한국건설기술연구원 토목연구부) ;
  • 김도겸 (한국건설기술연구원 토목연구부) ;
  • 조명석 (전력연구원 원자력연구실) ;
  • 송영철 (전력연구원 원자력연구실)
  • Received : 2000.08.28
  • Published : 2001.01.31

Abstract

In general, the deterioration induced by the freezing and thawing cyclic in concrete structures often leads to the reduction in concrete durability by the cracking or surface spalling. If it can prediction of concrete deterioration subjected to cyclic freezing and thawing, we can rationally do the design of mix proportion in view of concrete durability and the maintenance management of concrete structures. Therefore in this study a prediction method of deterioration for concrete structures subjected to the irregular freezing and thawing is proposed from the results of accelerated laboratory freezing and thawing test using the constant temperature condition and the in-situ weathering data. Furthermore, to accurately predict the concrete deterioration, a method of modification for the effect of hydration increasing during rapid freezing and thawing test is investigated.

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