Effect of recycled concrete coarse aggregate from multiple sources on the hardened properties of concrete with equivalent compressive strength

This study evaluated the effect of fully replacing natural aggregate (NA) with several sources of recycled concrete aggregate (RCA) on the various mechanical properties of multiple concrete mixtures having equivalent compressive strength and slump (compressive strengths between 40 and 60MPa and slumps between 75 and 125mm). The RCA concrete (having equivalent compressive strengths as the NA concrete) had modulus of elasticity values up to 19% …