Basic mechanical properties of recycled concrete with shotcrete rebound material
In order to study the basic mechanical properties of shotcrete rebound material recycled fine aggregate concrete(SRM-RFAC),the cube compressive strength,prism compressive strength,cube splitting tensile strength and static elastic modulus were tested with the replacement rate of shotcrete rebound material recycled fine aggregate(SRM-RFA)and the replacement rate of fly ash(FA).The results show that the cubic compressive failure,axial compressive failure and splitting tensile failure modes of SRM-RFAC are basically similar to those of normal concrete(NC),and the compressive strength and splitting tensile strength of concrete decrease gradually with the increase of SRM-RFAC and FA replacement rate.Based on the standard formula,the conversion formulas of prism compressive strength,cubic splitting tensile strength and static elastic modulus are proposed.The calculated values are in good agreement with the experimental results.
recycled concreterecycled fine aggregateshotcrete rebound materialbasic mechanical properties
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