Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)

The Korean Institute of Building Construction (한국건축시공학회)
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A Study on Fire Resistance Performance Evaluation for Field Application of Ultra-High Strength Concrete

초고강도 내화 콘크리트의 현장 적용을 위한 내화성능 평가에 관한 연구

  • 백영운 (현대엔지니어링 건축사업본부) ;
  • 육태원 (현대엔지니어링 건축사업본부) ;
  • 박동수 (현대엔지니어링 건축사업본부) ;
  • 김한솔 (한양대학교 ERICA 스마트시티공학과) ;
  • 이한승 (한양대학교 ERICA 건축학부)
  • Published : 2023.11.10
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Abstract

The physical performance of high-strength concrete deteriorates when exposed to high temperatures such as fire. In particular, in the case of ultra-high-strength concrete, there is a high possibility of explosion due to internal water pressure and thermal expansion due to the tight internal structure. In this paper, a fire resistance certification test was conducted for field application of ultra-high-strength fire-resistant concrete, and the fire resistance performance (temperature rise of main rebar) was compared according to the structural concrete cover thickness. As a result, when the covering thickness was 40 mm, three structures did not meet the certification standards, and when the covering thickness was 50 mm, all structures met the fire resistance certification standards.

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References

  1. Kalifa P, Menneteau FD, Quenard D. Spalling and pore pressure in HPC at high temprerture. Cement and Concrete Prsearch. 2000. Vol.30, No.10, p. 1915-27.