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Study on the Compatibility of Self-Compacting Concrete Thickener and the Cementitious Material

Self-compacting concrete often requires greater liquidity, and the big liquidity is easy to cause the concrete segregation. Thickener can effectively improve the rheological properties of concrete, namely appropriately increase plastic viscosity, but does not significantly affect concrete liquidity. The compatibility of polyacrylamide (PAM), carboxymethyl cellulose (CMC) in the cementitious material system was studied. The influence of thickener on liquidity, 7d strength, 28d strength and shrinkage in cementitious materials system were analyzed.