Self-compacting recycled concrete was prepared with three different pre-wetting rates(50％,70％and 100％)and different contents(15％,30％and 50％)of recycled coarse aggregate,and workability performance and me-chanical properties were tested.The results show that pre-wetting can increase the workability performance of self-com-pacting concrete,and the workability performance is best at a pre-wetting rate of 70％;when RCA is added at a content of 30％,the mechanical properties of self-compacting recycled concrete are improved,and the research results of non-evapo-rable water also show that the internal hydration content of concrete with 30％RCA is higher,which reasonably explains that concrete has better impermeability when the RCA content is less than 30％,and confirms the strength change trend of concrete.
SCR ACRCApre-wetting ratesworkabilitymechanical propertiesnon-evaporable water
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