Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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The Effect of Thermal Characteristic of Organic Fibres on the Spalling of High Strength Concrete

유기섬유의 열적 특성이 고강도 콘크리트 폭열에 미치는 영향

  • 박찬규 (삼성물산(주) 건설부문 기술본부 기술연구소) ;
  • 이승훈 (삼성물산(주) 건설부문 기술본부 기술연구소) ;
  • 김규동 (삼성물산(주) 건설부문 기술본부 기술연구소) ;
  • 손유신 (삼성물산(주) 건설부문 기술본부 기술연구소)
  • Published : 2005.05.01
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Abstract

Recently, in order to reduce the spalling of high strength concrete under fire, the addition of organic fibres to high strength concrete has been investigated. In this study, the effect of thermal characteristic of organic fibres on the spalling of high strength concrete was experimantally investigated. Two types of fibre, polypropylene(PP) and polyvinyl alcohol(PVA) fibres, were selected, and the strength level of concrete was correnponding to the design strength of 80MPa. As a result, it appears that when the remaining ratios(by weight) of fibre at 300$^{circ}C$ and 350$^{circ}C$ are less than 80$\%$ and 50$\%$, respectively, the spalling of high strength concrete is prevented.

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