地下防水施工工艺
1、基层清理:卷材防水基层清理工作对于防水质量致关重要,将基层表面的灰尘和尖锐物清理干净,有利于防水卷材不被刺穿和粘接密实,有利于防水质量。
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1、防水基层冷底子油施工
将基层表面清理干净后,喷涂冷底油。冷底子油喷刷要求均匀一致,不能露底,确保防水卷材与基层粘接密实。
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1、防水卷材下料
用于附加层防水卷材一般使用厚度3mm。宽度要求每边有250mm,这样下料时宽度正好是1/2卷材高度,可将整卷卷材放开对折后切割开一分为二,切割成2个宽度为500mm,用于附加层施工
![](https://gczly1314.com/wp-content/uploads/2019/12/1577288705-899fff65ade9608.jpg)
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承台、桩头附加层施工,宜分区域施工附加层后,再施工面层防水层
![](https://gczly1314.com/wp-content/uploads/2019/12/1577288706-a314291bd707b4e.jpg)
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