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六、沉降缝 建筑面积大,地面以上部分层数悬差,应分作几块,使之独立沉降。因沉降不同,底板下的防水层应断开。如果预计两侧建筑几乎沉降相同,那么在沉降缝处设止水带,并且使底板防水层及外墙防水层也相连不断。 沉降缝的两种防水作法 1.沉降缝两侧建筑各自作防水层,底板下及外墙防水断开,缝中不设止水带,完全成为两栋建筑。 先施工一侧建筑,将一侧墙面防水层作毕,然后满粘聚苯板,厚30mm。在聚苯板上抹水泥砂浆厚15～20mm,风干达到合适的含水率后,作防水
Sixth, settlement joints The construction area is large, and the number of layers above the ground is suspended. It should be divided into several pieces to make it settle independently. Because of the different settlement, the waterproof layer under the floor should be disconnected. If it is expected that the buildings on both sides are almost equal in settlement, the water-suppressing zone is set at the settlement joint, and the bottom waterproof layer and the outer wall waterproof layer are also connected. Settlement joints of two waterproof practices 1. Settlement joints on both sides of the building as a waterproof layer, under the floor and the outer wall of waterproof disconnected, no water stop in the seam, has completely become two buildings. One side of the building was constructed first, and the waterproof layer on one side of the wall was completed. Then the board was covered with polyphenyl board and the thickness was 30mm. Wipe the cement mortar on the polyphenyl board to a thickness of 15-20mm, and after drying to a suitable moisture content, waterproof