ECC 재료보강 두께에 따른 휨 부재의 휨 거동에 관한 실험적 연구

Experimental Study of Flexural Behavior in Flexural Members Based on Repair Thickness of ECC

  • 경민수 (세종대학교 토목환경공학과) ;
  • 김동완 (세종대학교 토목환경공학과) ;
  • 배병원 (세종대학교 토목환경공학과) ;
  • 전경숙 (세종대학교 토목환경공학과) ;
  • 임윤묵 (연세대학교 토목공학과) ;
  • 김장호 (세종대학교 토목환경공학과)
  • 발행 : 2004.05.01

초록

Recently, the development of construction materials is rapidly advancing. Especially, the rate of development of cement based construction materials is much quicker than steel or composite materials. In order to optimize the ductility and strength of cement based materials, Micro-mechanics based fiber concrete called Engineered Cement Composite (ECC) is developed and studied extensively by many researchers in the field. Due to ECC's remarkable flexural strain and strength capacities, many leading nation (i.e., US, Japan, and European countries) are currently using ECC in actual constructions. In this study, ECC with internationally competitive material capacities is manufactured using domestic materials. Then, unreinforced concrete beams are repaired using ECC with $10\%,\;20\%,\;30\%$ of concrete specimen height Using 4 point bending test, the flexural strength of repaired flexural members are determined. The results show that ECC manufactured with domestic materials can be effectively used for repairing materials.

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