Experimental Study on the Shrinkage Performance of the Assembled GRC-PC Composite Wall Panel
This paper studies the shrinkage performance of the assembled GRC-PC composite wall board under different process conditions and compares it with a single material wall board.The results show that the shrinkage strain of GRC wall board and C30 concrete single material wall board increases with the increase of time;the shrinkage strain of C30 concrete wall board is stable at-80×106 μm,which is 93.2%lower than that of GRC wall board.Compared with the pure GRC wall panel shrinkage strain,the surface and internal shrinkage strains of GRC-PC wall panels were 89.2%and 94.9%,respectively.Compared with the pure C30 wall board shrinkage strain,the shrinkage strain inside the composite wall board decreased by 33.3%.After the addition of wire mesh,the surface shrinkage strain of GRC-PC composite wall board+wire mesh began to decrease,with stronger crack resistance.
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