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抹灰前先洒水将墙面湿润,是为了防止灰浆中的水分迅速被墙面吸去,使灰浆失去粘性,还没等到硬化,就干酥了。这样,就影响灰浆与墙面的牢固结合和抹灰的质量。有的人这样想,要是就为了防止灰浆中的水份被墙面吸去,可将灰浆调稀一点不就行了吗!这样还可省去一道手续,岂不是更好吗?要知道灰浆本身是比较重的,必须具有一定的粘性,抹在墙上才能粘得住,如果过稀,就会在下流。因此,为了使灰浆保持一定的粘性,就不能使灰浆过稀;同时又要保证灰浆有适当的硬化时间,不能使灰浆迅速地失去水份。目前解决这个矛盾的办法,就是在抹灰前先洒水。大家都知道,灰浆中的石灰膏
Watering the wall before plastering is to prevent the moisture in the mortar from being quickly absorbed by the wall surface, causing the mortar to lose its viscosity, and before it has hardened, it is dried. In this way, the firm bonding of the mortar and the wall and the quality of the plastering are affected. Some people think that if it is to prevent the moisture in the mortar from being sucked by the wall, it is not enough to thin the mortar. It would be better to save a procedure. Is it better to know the mortar itself? It is relatively heavy, it must have a certain degree of stickiness, and it can be stuck on the wall. If it is too thin, it will be filthy. Therefore, in order to maintain a certain viscosity of the mortar, it is not possible to make the mortar too thin; at the same time, it is necessary to ensure that the mortar has an appropriate hardening time and that the mortar cannot rapidly lose moisture. The current solution to this contradiction is to sprinkle water before plastering. As we all know, the lime paste in mortar