防水工程是建筑工程中非常重要但又容易让人忽视的工程,一般部位的防水做法已相当成熟,但一些特殊部位的防水却是十分讲究,也容易出现问题。因此,在实际操作中应注意以下方面:1.电梯井、集水坑防水电梯井、积水坑基层阴阳角必须做成≥50mm的圆弧或45°(135°)八字角,阴阳角、立面内角、外角及施工缝处均做500mm宽的附加层。电梯井、积水坑斜面的第二层防水卷材采 Waterproofing is a very important construction project but easy to ignore the project, the general part of the waterproofing practices have been quite mature, but some special parts of the waterproofing is very particular, but also prone to problems. Therefore, in actual operation should pay attention to the following aspects: 1. Elevator shaft, water pit waterproof shaft, sump pit base yin and yang angle must be made of ≥ 50mm arc or 45 ° (135 °) Bazooka, yin and yang angle, Facade angle, outside corner and construction joints are made of 500mm wide additional layer. Elevator shaft, puddle slope of the second layer of waterproofing membrane mining