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Title |
Improvement of Structural Performance of RC Beams retrofitted Hybrid Fiber using Recycled Coarse Aggregate and Ground Granulated Blast Furnace Slag
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Authors |
이동렬(Dong-Ryul Yi) ; 하기주(Gee-Joo Ha) |
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DOI |
http://dx.doi.org/10.11112/jksmi.2014.18.6.001 |
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Keywords |
순환굵은골재 ; 고로슬래그 미분말 ; 하이브리드섬유 ; 구조성능 Recycled coarse aggregate ; Ground granulated blast furnace slag ; Hybrid fiber ; Structural performance |
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Abstract |
In this study, thirteen reinforced concrete beams, ground granulated blast furnace slag, replacing recycled coarse aggregate with PVA fiber (BSPG series) and recycled coarse aggregate with hybrid fiber (BSPGR1, BSPGR2 series), and standard specimen (BSS) were constructed and tested under monotonic loading. Experimental programs were carried out to improve and evaluate the Structural performance of such test specimens, such as the load-displacement, the failure mode, and the maximum load carrying capacity. All the specimens were modeled in 1/2 scale-down size. Test results showed that test specimens (BSPGR1, BSPGR2 series) was increased the compressive strength by 13%, the maximum load carrying capacity by 4~21% and the ductility capacity by 4~28% in comparison with the standard specimen (BSS). And the specimens (BSPGR1, BSPGR2 series) showed enough ductile behavior and stable flexural failure.
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