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

Korea Concrete Institute (한국콘크리트학회)
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Spalling Resistance of $80{\sim}100MPa$ High Strength Concrete

$80{\sim}100MPa$급 고강도 콘크리트의 폭렬방지

  • 허영선 (청주대학교 대학원) ;
  • 배장춘 (청주대학교 대학원) ;
  • 이재삼 (두산산업개발(주) RC연구개발팀) ;
  • 한창평 ((주)한성종합기술단건축사사무소 기술연구소) ;
  • 양성환 (인천전문대학교 건축과) ;
  • 한천구 (청주대학교 건축공학부)
  • Published : 2006.11.04
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Abstract

This study investigates the engineering and fire endurance properties of ultra high strength concrete. The mixture proportions with water to binder ratios (W/B) of 0.15 and 0.25 consist of various adding ratios, such as 0, 0.05, 0.1, 0.15, 0.2, 0.25 and 0.3 percent respectively, of polypropylene (PP) fiber. As for the parameters of specimens, fluidity, compressive strength and unloading fire test were carried out. Test showed that an increase of fiber contents had the favorable properties in fire endurance performance; specimens in W/B 15% required 0.3vol% of PP fiber and specimens in W/B 25% needed only 0.1vol% to prevent spalling.

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