Abstract:In order to investigate the compressive and shrinkage properties of fully reclaimed coarse aggregate recycled concrete under different curing conditions, three kinds of curing conditions were used in this experiment:film covering curing, dry and wet circulation curing and water immersion curing. Experimental study on compressive strength and shrinkage properties of recycled concrete with 1 d,3 d, 7 d, 14 d, 28 d, 45 d, 60 d, 90 d and 120 d was carried out under these three curing conditions. The results show that under these three different curing conditions, the compressive strength and shrinkage strain of recycled concrete increase with the increase of curing age. At 7 d, the compressive strength of recycled concrete was not significantly different under the three curing conditions. At 14 d, the film coverage and immersion maintenance were reduced by 8.7% and 14.2% respectively compared with the compressive strength of dry and wet circulation curing. Under the three curing conditions, the shrinkage strain of recycled concrete at 90d tends to be stable. At 120 d, the shrinkage strain of the film covering curing is 11.18% higher than that of the dry and wet cycle. The immersion curing shows swelling.