云南省昆明市修缮公司第二施工队,在它所修建的地面中采用干硬性砂浆地面,用户反映良好。这种地面不仅坚硬,而且越用越光滑,不起灰。它与1:2水泥砂浆地面相比,还能节约大量水泥,施工简便。操作技术要领如下:1.选用材料、工具必须严格(1)水泥要用32 5号以上的普通硅酸盐水泥,土水泥不可以使用。(2)中粗砂平均粒径在0.35毫 The second construction team of the repair company in Kunming City, Yunnan Province, used a dry hard mortar surface in the ground it built. The users responded well. This kind of ground is not only hard, but also the smoother and more ashless. Compared with 1:2 cement mortar floor, it can also save a lot of cement and is easy to construct. Operational techniques are as follows: 1. Selection of materials and tools must be strict (1) Cement should use ordinary portland cement over No. 32 No. 5, and cement cannot be used. (2) The average particle size of coarse sand is 0.35 millimetres