现象底层与基层或面层粘面灰浆与底层灰浆粘结不牢,造成空鼓形成两张皮,严重时造成饰面脱落。石子面层表面颜色不一。原因分析1.墙面基层上的灰尘太多或粘在墙面上的灰浆、泥浆等杂物未清除干净。2施工前基层未浇水或浇水不适当,造成粘结不牢而空鼓。3.严寒季节施工时抹灰层受冻 Phenomenon between the bottom layer and the base layer or surface layer adhesive mortar and the bottom mortar is not firmly bonded, resulting in empty drums forming two skins, and in serious cases, the decorative surface falls off. The color of the stone surface is different. Cause Analysis 1. Dust on the wall base layer is too much, or mortar, mud and other debris stuck to the wall surface are not cleared. 2 The groundwater is not watered or watered before the construction, resulting in loose bonding and emptying. 3. The plaster layer is frozen during the cold season