혼화재료의 조합사용에 따른 콘크리트의 기초물성 및 단열온도상승 특성

Fundamental Properties and Adiabatic Temperature Rise of Concrete with the Combination of Mineral and Chemical Admixture

  • 전충근 ((주)선엔지니어링 건설기술연구소) ;
  • 김종 ((주)선엔지니어링 건설기술연구소 청주대) ;
  • 신동안 ((주)선엔지니어링 건설기술연구소) ;
  • 윤기원 (주성대학 건축공학과) ;
  • 한천구 (청주대학교 건축공학부)
  • 발행 : 2005.05.01

초록

This paper presents the result of adiabetic temperature rise and fundamental properties of concrete combining admixtures. According to results, difference of setting time with I5.5hours is observed between S-P and R-F30 mixture. Based on the adiabetic temperature rise test, 8$^{circ}C$of heat producted occurs between E-P and R-F30 mixture. is applied to estimate the temperature rising under adiabetic curing condition, which exhibits closer consistency with tested value. The function mentioned above can account for the effect of dormant period in hydration process at early stage on hydration heat production. It reveals that the consideration of placing layer based on the mixture adjustment(E-P mixture at top layer and R-F30 mixture at bottom layer) in mass concreting will contribute to reduce hydration heat as well as alleviate tensile stress discrepancy between placing layer.

키워드