为了得到更好的装饰效果,近年来,外墙抹灰改为水泥砂浆抹面后刷外墙漆。但由于水泥砂浆的高缩率和其硬结后的脆硬特点,随着对已竣工工程的跟踪观察,发现用水泥砂浆抹灰的外墙墙面,出现有多种裂缝的质量通病。水泥砂浆抹灰裂缝的存在不但严重影响着建筑物的观感质量,有的还影响到使用功能和给人们带来不安全感。 In order to get a better decorative effect, in recent years, the plaster wall plaster wall to brush the external wall paint. However, due to the high shrinkage rate of cement mortar and the brittleness and hardness characteristics of the cemented mortar, with the follow-up observation of the completed projects, it was found that the quality of various cracks appeared in the external wall of the wall plastered with cement mortar. The existence of cement mortar plaster cracks not only seriously affect the visual quality of the building, and some also affect the use of functions and bring people insecurity.