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Title |
An Experimental Study of Bond Stress between Concrete and Various Kinds of FRP Plank used as a Permanent Formwork
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Authors |
박찬영(Chan-Young Park) ; 유승운(Seung-Woon Yoo) |
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DOI |
http://dx.doi.org/10.11112/jksmi.2015.19.3.092 |
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Keywords |
FRP 판 ; GFRP ; CFRP ; 영구거푸집 ; 부착응력 ; 계면 파괴에너지 FRP plank ; GFRP ; CFRP ; Permanent formwork ; Bond stress ; Interfacial fracture energy |
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Abstract |
Development of new concrete bridge deck system with FRP plank using as a permanent formwork and the main tensile reinforcement recently has been actively conducted. Concurrent use as a reinforcing material and a permanent formwork, it is possible to reduce the construction time and construction costs than the usual concrete slab. In this study, an experiment was carried out for the bond stress between cast-in-place concrete and the type of FRP plank using as a permanent formwork. The interfacial fracture energy that can be one of the most important parameters were evaluated for adhesion performance and bond stress to know the characteristics of the failure mechanism of the adhesion surface. Interfacial fracture energy of normal concrete is 0.24kN/m of GF11 case, in the case of GF21, 0.43kN/m appears, in the case of CF11 and GF31, 0.44kN/m and 0.46kN/m respectively it appeared. In case of RFCON, 0.52kN/m appears from GF12, the CF12 and GF22, 0.51kN/m and 0.36kN/m appeared each case.
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