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卫生间的墙体下部有一段１２０ｍｍ高的混凝土防水翻边 ,一般随结构楼面混凝土一起浇筑。这种传统作法很难保证防水翻边不渗漏和轴线的准确性。可采用二次浇筑的方法来解决。具体作法如下。１．楼板混凝土浇筑后修平时 ,在墙体中部放置断面为（４０～５０）ｍｍ×５０ｍｍ的梯?
The lower part of the bathroom wall has a 120mm high concrete waterproof flanging, generally with the structure of concrete floor pouring. This traditional approach is difficult to ensure that the waterproof flange does not leak and the accuracy of the axis. Can be used to solve the second pouring. Specific practices are as follows. 1. Floor concrete pouring flattened, placed in the middle of the wall section (40 ~ 50) mm × 50mm ladder?