Experimental study on flexural property of self-compacting concrete beams with discontinuous graded recycled coarse aggregate
Science Journal Innovation Technologies Transfer(2020)
Abstract
Experimental study on the flexural property of self-compacting recycled concrete (SCRC) beams with discontinuous graded recycled coarse aggregate is carried out with different replacement ratio of recycled aggregate and concrete grade. The similarities and differences on the failure modes between 4 SCRC beams and 2 normal beams were discussed. According to various replacement ratio of recycled aggregate and concrete grade,the influence on the carrying capacity,cracking ability,etc. of SCRC beams with discontinuous graded recycled coarse aggregate was also analysed. The results show that the failure modes, cracks of pure bend of SCRC beams and normal ones are similar. The vertical crack width of SCRC beams are bigger than the normal beams. There are small cracks in the shear bending section. The ultimate strength decrease slightly and the calculation formulas of current design standard can be used of flexural members which are made of SCRC.
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Key words
Concrete Strengthening,Concrete Properties,Sustainability in Construction,Structural Reliability
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