Effect of Water-Cement Ratio of Ductile-Fiber-Reinforced Cementitious Composite Using Recycled Fine Aggregate on Shear Fracture Behavior of RC Beam

摘要

In order to investigate the effects of differences in the compressivestrength of ductile-fiber-reinforced cementitious composites usingrecycled fine aggregate (RDFRCC) on the shear fracture behavior ofRDFRCC RC beams, we subjected RDFRCC RC beam specimens ofdifferent water/cement ratios (W/C) to load tests. The results obtainedin the present study are summarized as follows: Applying RDFRCC toRC beam specimens significantly increases the RC beam specimens’shear strength. While the maximum load for RDFRCC RC beamspecimens increase as W/C falls, the rate of this increase is smallcompared to that for RC beams using ordinary concrete.