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Title |
Enhancements in Performance and Manufacturing Efficiencies of GFRP Rebar
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Keywords |
섬유보강 폴리머 ; GFRP ; 보강근 ; 브레이드트루젼 ; 인장강도 ; 부착강도 Fiber reinforced polymer ; GFRP ; Rebar ; Braidtrusion ; Tensile strength ; Bond strength |
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Abstract |
Fiber reinforced polymer (FRP) reinforcing rebar with non-corrosive property is suggested as an alternative replacement to steel reinforcing rebar due to its enhanced durability and non-corrosive characteristics. Currently, a limited number of glass fiber reinforced polymer rebar (GFRP) are sold commercially due to their high cost, relatively low performances, and brittle failure characteristics. Therefore, the performance enhancements and cost reduction of GFRP rebar are needed to increase its applications in construction fields. The intent of this study is to develop high performance GFRP rebar by improving its tensile and shear properties. Also, in order to reduce manufacturing costs, factors such as material composition and manufacturing process were evaluated to improve manufacturing efficiency. Finally a GFRP rebar with enhanced material properties and less expensive than the GFRP rebar currently sold in the market was manufactured and evaluated for its application possibility in construction fields.
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