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- W2389331241 abstract "To study the underlying causes which affect pavement performance of cement concrete pavement slab and find the way to improve pavement performance,the vertical distribution of water and air in concrete pavement slab was taken as key point and the distribution of water and air in cement concrete pavement slab was researched by changing the amount of water,amount of cement,volume fraction of mortar and volume of air-entraining admixture.SEM was used to analyze the micro-structure of mortar layer of cement.The results show that:the contents of water and air inside the cement concrete pavement slab are less than that in the surface;pore fraction and the number of big pores of cement structure are increased by higher water content,which will reduce the impermeability of cement;higher air content increases pore fraction of cement structure too,but it just increase the number of small pores,which makes pore sizes distribution more uniform and improves the micro-structure.Thus the durability of cement concrete is improved." @default.
- W2389331241 created "2016-06-24" @default.
- W2389331241 creator A5060386621 @default.
- W2389331241 date "2014-01-01" @default.
- W2389331241 modified "2023-09-28" @default.
- W2389331241 title "Vertical distribution of water and air in new molding cement concrete pavement slab" @default.
- W2389331241 hasPublicationYear "2014" @default.
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