지하주차장 슬래브 균열저감을 위한 수축저감 콘크리트 현장적용 사례

Application of shrinkage-reduced concrete to mitigate cracks of slab in parking garages

  • 서종해 (삼성물산 건설부문 주택ENG팀) ;
  • 이정호 (삼성물산 건설부문 수원 S현장) ;
  • 이규식 (삼성물산 건설부문 아산 T현장) ;
  • 전병갑 (삼성물산 건설부문 주택ENG팀) ;
  • 김준삼 (삼성물산 건설부문 주택ENG팀) ;
  • 이회근 (삼성물산 건설부문 기술연구센터)
  • 발행 : 2012.05.18

초록

Concrete has cracks from shrinkage that necessarily result from in hardening process. Shrinkage-reduced concrete developed for crack reduction was utilized at a sample construction project. As a result, it is confirmed that crack initation ratio was remarkably reduced when compared to the case of normal concrete utilization. Additional sample project is supposed to use delay joints as well as srinkage-reduced concrete. Subsequently, the result will be reported. The greatest factor which affects in drying shrinkage is unit quantity of water. However, there are a lot off difficulties in field supervision because proper measuring means is not presented in present standard. Therfore, problems depending on ready-mixed concrete concrete companies should be improved by preparing the related standard assoon as possible.

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