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- W2386251015 abstract "It investigated a preliminary preparation of SRA(shrinkage-reducing agent) considering to improve the water-retaining property and reducing the surface tension of pore solution in the cement-based materials,which was developed mainly through three steps:(1)The effects of various SRA components on performance of mortar were studied and some valid components are selected;(2)Those valid components were investigated by orthogonal design;(3)The results of drying shrinkage property of mortar with different dosages were compared.Combining with two professional SRAs(JKA,MSA),the experiments of anti-plastic shrinkage cracking and mechanical property of mortars were made.The results show that SRA can reduce the drying shrinkage with a large extent and strength with a certain extent.Moreover,SRA can slightly improve the property of anti-plastic shrinkage cracking.Besides,some experiments are made to analyze their mechanism from the plastic tensile strength,the speed of water evaporation and the pore size distribution,which shows that SRA can reduce the plastic tensile strength with a certain extent and increase the rate of water evaporation and porosity,especially the content of pores with diameter of more than 0.1μm." @default.
- W2386251015 created "2016-06-24" @default.
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- W2386251015 date "2006-01-01" @default.
- W2386251015 modified "2023-09-23" @default.
- W2386251015 title "Mechanism and effect of shrinkage-reducing agent used in cement mortar" @default.
- W2386251015 hasPublicationYear "2006" @default.
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