Research on the basic properties of SAP internal curing concrete based on nano silica modification
The physical and mechanical properties and chloride ion penetration resistance of nano-silica(NS)modified SAP internal curing concrete are studied,and the mix design of this concrete is put forward.The bending strength of concrete can be improved by adding 0.08％SAP and 1.5％NS.The compressive strength of concrete can be improved by adding 0.08％SAP and 1.0％NS.The per-meability resistance of chloride ion is the best by adding 0.24％SAP and 1.5％NS.Adding 0.24％SAP and 0.5％NS can significantly reduce the drying shrinkage.
nano silica modificationSAP internal curing concretecompressive strengthsetting time
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