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Title |
Capacity Evaluation of SFRC Beams Using Recycled Fine and Coarse Aggregates
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DOI |
https://doi.org/10.11112/jksmi.2017.21.2.122 |
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Keywords |
순환 굵은골재 ; 순환 잔골재 ; SFRC 보 ; 강섬유 ; 혼입율 ; 전단강도 Recycled coarse aggregate ; Recycled fine aggregate ; SFRC beams ; Steel fiber ; Volume fraction ; Shear strength |
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Abstract |
The aim of this study is a large amount use of recycled aggregates. The considering recycled aggregates replacement ratio is 50% that of natural aggregates. In order to increase the shear capacity of beams, that may be weaken by use of recycled aggregates, steel fibers are reinforced. The main variables are steel fiber volume fractions such as 0%, 0.5%, 0.75% and 1.0%. After the test, it could confirm that the strength and deformation capacity of beams with the steel fiber content values of 0.5% and 0.75% are comprehensively enhanced compared to non reinforcement. After evaluating the shear strength by using shear strength equations of previous researches, it concluded that the strength equation of Oh et al. (2008) is able to predict the shear strength of SFRC beams on the safety side.
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