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Dry Shrinkage Properties of Polymer Lattice Porous Concrete of Pavement

YI Zhi-jian,LI Ying,YANG Qing-guo,ZHAO Chao-hua,TONG Rui-jin(School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China)  
The pavement which is made of polymer lattice porous concrete is a new kind of road surface structure,and it has many advantages in engineering practice,such as water permeability,noise-decreasing and color landscape features.Polymer lattice porous concrete is the internal space frame structure with frames,nodes and interspaces that have been consolidated by polymer cement.According to related specifications,the test of drying shrinkage performance is carried out.The drying shrinkage performance of polymer lattice porous concrete is compared with that of general cement concrete and large porous concrete without sand.The drying shrinkage ratios of polymer lattice porous concrete at different ages are obtained.The results show that polymer lattice porous concrete has favorable drying shrinkage performance.
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