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Title |
Flexural Performance of Reinforced Concrete Beams with Recycled Aggregates Suffering from Sustained Load
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Keywords |
순환골재 콘크리트 ; 철근콘크리트 보 ; 지속하중 ; 휨 성능 Recycled aggregate concrete ; Reinforced concrete beams ; Sustained load ; Flexural performance |
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Abstract |
This paper presents results of an experimental study designed to investigate the effect of sustained load on the flexural performance of reinforced recycled aggregate concrete beams. In this experimental program, three beams with recycled aggregate replacement percentages(natural 100%, recycled coarse aggregate 100%, recycled fine aggregate 50%) were tested up to failure after sustained loading(0.5Mn) for one year. The experimental results showed that reinforced concrete beams using recycled aggregate(water absorption : 1.86～3.64%) concrete showed the same flexural performance as that of natural aggregate concrete beam. Current the ACI code underestimated experimental obtained ultimate flexural strength of beams irrespective of usage of recycled aggregates.
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