Properties of Fire Resistance of High Performance Concrete Using Cellulose Fiber

셀룰로오스 섬유를 사용하는 고성능 콘크리트의 내화특성

  • 김경민 (두산산업개발(주) RC연구개발팀) ;
  • 주은희 (청주대학교 대학원) ;
  • 황인성 (청주대학교 산업과학연구소) ;
  • 지석원 (두산산업개발(주) 기술연구소) ;
  • 이성연 (두산산업개발(주) 기술연구소) ;
  • 한천구 (청주대학교 건축공학부)
  • Published : 2004.11.01

Abstract

This paper is to investigate the fire endurance of high performance concrete with the contents of cellulose fiber. According to test results, the use of CL lead to decrease in fluidity. For compressive strength, the use of CL had no influence on compressive strength. For spalling properties, plain concrete showed a severe spalling failure. The use of CL protected from spalling of concrete, but most specimens had scale failure and partial destruction of specimens. This is due to the insufficient fiber length and diameter of CL fiber, which was unable to discharging the internal vapour pressure. For this reason, CL fiber can not be used to protect from spalling oh high performance concrete. Residual strength was observed to $5\~7\%$ of original strength.

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