• Journal of the Korean Recycled Construction Resources Institute
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• v.5 no.2
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• pp.130-136
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• 2017

The present work is for an evaluation of tension behavior and surface deterioration of FRP Hybrid Bar due to UV exposure and freezing/thawing(F/T) actions. For the work, FRP Hybrid Bar is subjected to UV exposure test, then F/T test is performed successively to 180 cycles. In FRP Hybrid Bar, no significant surface deterioration is evaluated after UV exposure. Tension hardening performance, a unique engineering advantage of FRP Hybrid Bar, is still maintained after F/T test. The performance in FRP Hybrid Bar exposed to UV is still effective. FRP Hybrid Bar exposed to UV have almost similar tension behavior of FRP Hybrid Bar without UV exposure. Although F/T cycles increase to 180, steel rebar, FRP Hybrid Bar, and FRP Hybrid Bar exposed to UV show no significant changes in tension behavior. In the work, UV exposure and F/T actions are evaluated to have little negative effect on surface deterioration and tensile performance in FRP Hybrid Bar, however spalling of silica coating due to impact should be considered since it affects bonding strength to outer concrete.

• Proceedings of the Korea Concrete Institute Conference
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• 2005.05b
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• pp.325-328
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• 2005

Fiber Reinforced Polymers are recognized as the alternative materials for solving the problem due to the excellent corrosion-resistant property, light-weight and higher strength than steel. Glass fiber is superior to other fibers from the economical point of view but the mechanical property is not. For this reason, researches to improve the mechanical property of glass fiber reinforced polymer rebar has been conducted and it emerged as a solution to make the bar as a hybrid type with carbon fibers. This paper presents results of experimental program to investigate the scattering effectiveness of carbon fibers in glass FRP bar.