대한토목학회논문집 (KSCE Journal of Civil and Environmental Engineering Research)

  • 제34권6호
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  • Pages.1687-1694
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  • 2014
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  • 1015-6348(pISSN)
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  • 2799-9629(eISSN)
대한토목학회 (Korean Society of Civil Engeneers)
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영구거푸집으로 활용한 탄소섬유 FRP 판과 DFRCC 사이의 부착응력에 관한 실험적 연구

An Experimental Study for Bond Stress between DFRCC and Carbon FRP Plank Used as a Permanent Formwork

  • 박찬영 (가톨릭관동대학교 토목공학과 대학원) ;
  • 유승운 (가톨릭관동대학교 토목공학과)
  • 투고 : 2014.06.27
  • 심사 : 2014.10.15
  • 발행 : 2014.12.01
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초록

최근 들어 탄소섬유 FRP가 보수/보강재로 많이 활용되고 있다. 본 연구에서는 탄소섬유 FRP 판을 영구 거푸집으로 활용하여 새로운 콘크리트 교량 바닥판 시스템을 개발하기 위하여 CFRP판과 고인성 섬유보강 콘크리트 사이의 부착성능에 대한 평가를 실시하였다. 현장타설 콘크리트와 CFRP 간에 부착을 높이기 위하여 시중에 유통되는 에폭시를 사용하여 규사를 부착하였다. 일반콘크리트의 부착응력은 2.11~5.43MPa으로 나타났고, 고인성 섬유보강 콘크리트인 DC1 (RF4000)과 DC2 (PP)의 부착응력은 각각 3.91~5.60MPa, 2.92~5.21MPa이며, DC3 (RF4000+RSC15)의 부착응력은 4.80~5.58MPa, DC4 (PP+RSC15)의 평균 부착응력은 5.57~5.89MPa으로 나타났다.

Recently FRP of carbon fibers is utilized as a repairing and reinforcing material for concrete structures. In this study, the bond performance between CFRP planks and ductile fiber reinforced cementitious composites was evaluated in order to develop a new system of concrete bridge deck to take advantage of the FRP planks of carbon fiber using as a permanent formwork. In order to strengthen the bonding between the FRP and cast-in-place concrete, an epoxy resin circulated in the market generally was fitted with a silica sand. The bond stress of ordinary concrete appeared in 2.11~5.43MPa and the bond stress of ductile fiber reinforced cementitious composites DC1 (RF4000) and DC2 (PP) respectively were 3.91~5.60MPa, 2.92~5.21MPa and the average bond stress of DC3 (RF4000+RSC15) and DC4 (PP+RSC15) were 4.80~5.58MPa, 5.57~5.89MPa.

키워드

참고문헌

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피인용 문헌

  1. Simple Bond Stress and Slip Relationship between CFRP Plank and Cast-in-Place DFRCC vol.7, pp.1, 2016, https://doi.org/10.11004/kosacs.2016.7.1.025