采用掺加聚丙烯纤维和聚合物乳液对水泥砂浆进行改性.运用正交实验直观分析的方法,确定了聚丙烯纤维聚合物乳液改性水泥砂浆材料成分的最佳配比,并且对改性水泥砂浆进行了力学性能研究.实验结果表明,掺加一定量的聚丙烯纤维和聚合物乳液,可以提高水泥砂浆的力学性能,并且得出其作用机理. Adopting polypropylene fiber and polymer emulsion to modify the cement mortar.Using the orthogonal experimental visual analysis method, the best proportion of the material composition of the polypropylene fiber polymer emulsion modified cement mortar was determined, and the modification The mechanical properties of cement mortar were studied.The experimental results show that adding a certain amount of polypropylene fiber and polymer emulsion can improve the mechanical properties of cement mortar and draw its mechanism.