A Study on Applicability Evaluation according to Strength Range of High-Strength Fire Resistance Concrete

고강도 내화 콘크리트의 강도 영역에 따른 현장 적용성 평가에 관한 연구

  • 장종민 (한양대학교 에리카산학협력단 건설구조물 내구성혁신 연구센터) ;
  • 백영운 (현대엔지니어링 건축사업본부) ;
  • 육태원 (현대엔지니어링 건축사업본부) ;
  • 박동수 (현대엔지니어링 건축사업본부) ;
  • 이한승 (한양대학교 ERICA 건축학부)
  • Published : 2023.05.17

Abstract

In this study, the mass production process was simulated using a 1m3 batcher plant to evaluate the application of high-strength fire resistance concrete. The strength ranges of concrete were set to 50, 60, 70, and 80 MPa, and each concrete mix proportions was selected through preliminary experiments in the laboratory. For the selected concrete mix proportions, after the mixer load value was stabilized in the batcher plant, the slump flow and air content of the fresh concrete were evaluated, and the compressive strength was evaluated up to 56 days. As a result of the experiment, both the slump flow and air content of the fresh concrete satisfied the target performance, and in the case of compressive strength, 50 and 60 MPa satisfied the target performance at 28 days and 70 and 80 MPa at 56 days.

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Acknowledgement

이 성과는 2018년 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. NRF-2018R1A5A1025137).