关键词: 羧基丁苯胶乳聚合物;聚合物混凝土性能;混凝土湿度扩散系数;收缩

Abstract: The dosage of carboxylic butadiene-styrene latex to the performance of concrete was investigated by experiment .Including basic mechanical property , chloride ion permeability coefficient , shrinkage and moisture diffusion coefficient .The experiment results shows that the cube crushing strength of concrete was decreased with the increased of carboxylic butadiene-styrene latexdosage .The carboxylic butadiene-styrene latexdosage have a few influence of elasticity modulus of concrete , and the tensile strength of concrete was increased withe the dosage .The increase of the dosage of carboxylic butadiene-styrene latex will decrease the moisture diffusion coefficient of concrete and result in lower autogenous shrinkage and dry shrinkage of concrete .

Key words: carboxyl butylbenzene latex polymer;property of polymer concrete;diffusion coefficient of concrete moisture;shrinkage