아원계 조강재를 이용한 1일 공용 콘크리트 개발연구

A Study on Development of 1 Day Usable High Early Strength Concrete Using Hauyne C/K System Additives

  • 박정준 (쌍용중앙연구소 콘크리트연구실) ;
  • 백상현 (쌍용중앙연구소 콘크리트연구실 연구원) ;
  • 신영훈 (쌍용중앙연구소 시멘트연구실) ;
  • 김병권 (쌍용중앙연구소 시멘트연구실) ;
  • 윤경구 (도로공사연구소 포장연구실 책임연구원(공학박사)) ;
  • 엄태선 (쌍용중앙연구소 콘크리트연구실 책임연구원 (공학박사))
  • 발행 : 1999.10.01

초록

In recent, concrete material like specific cement and additives having many functions hsa been developed. In road pavement, ultra high early strength cement or organic material are used to open the road early, but there are many restrictions like workable time and special equipment. We aim to developed specific concrete which 1 day strength is over 300kgf/$\textrm{cm}^2$ to open the road within one day and workable time is maintained over 1 hour that can make the concrete ready mixed concrete. In this study, we are convinced if the ratio of hauyne clinker or its additive is increased early strength property is progressed and if the ratio of non hydrous gypsum is increased longtime strength is progressed. The concrete strength is 290-310 kgf/$\textrm{cm}^2$ at 1 day, 570-640 kgf/$\textrm{cm}^2$ at 28 day and the workable time is maintained over 30 minutes. As the results of this experiments We find out the possibility to developed the 1 day usable ready mixed concrete with high early strength.

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