한국안전학회지 (Journal of the Korean Society of Safety)

  • 제34권5호
  • /
  • Pages.111-118
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  • 2019
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  • 1738-3803(pISSN)
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  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
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콘크리트용 표준물질(Standard Reference Materials)개발의 최적배합비율 결정을 위한 기초연구

A Fundamental Study on the Determination of Optimal Mixing Ratio for Development of Standard Reference Materials for Concrete

  • 이동규 (한국가스안전공사 가스안전연구원) ;
  • 최명성 (단국대학교 토목환경공학과)
  • Lee, Dong Kyu (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Choi, Myoung Sung (Department of Civil and Environmental Engineering, Dankook University)
  • 투고 : 2019.09.06
  • 심사 : 2019.10.11
  • 발행 : 2019.10.31
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초록

Recently, a variety of special concrete structures have been designed in domestic and overseas construction markets and more advanced construction technology is required. Therefore, it is necessary to secure quantitative construction technology. For this purpose, it is essential to develop a standard reference material having a constant flow performance and quality to evaluate quantitative performance. On the other hand, the flowability of the concrete is greatly influenced by the flowability of the cement paste. Also, in consideration of design strength and workability, mix design is carried out at various mixing ratios according to the purpose of the site. Therefore, in this study, based on the derived components of standard reference materials for cement paste, we suggested mixing ratio of standard reference materials that can uniformly simulate the flow characteristics of cement paste according to W/C. As a result, it was found that the yield stress was determined by the ratio of water and glycerol but plastic viscosity was controled by limestone content. Finally, the ratio of standard reference materials to simulate the rheological range of cement paste by W/C was suggested.

키워드

참고문헌

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