The PMM can be gained better properties at a low polymer-cement ratio, which have a great economic significance to enlarge its engineering application.

• 最后考虑经济因素，对改性砂浆的拌和工艺和工程造价进行了探讨，使其在聚合物掺量较低的情况下获得优良的性能，对推广其工程应用具有很大的经济意义。