水泥砂浆找平层铺卷材隔离层施工
Construction of cement mortar leveling layer with coiled material isolation layer
用1：3水泥砂浆将结构层找平，并压实抹光养护，再在干燥的找平层上铺一层3~8mm干细砂滑动层，在其上铺一层卷材，搭接缝用热沥青玛蹄脂盖缝。也可以在找平层上直接铺一层塑料薄膜。
The cement mortar of 3:3 is plastered on the joint, and a layer of dry mortar is used to cover the joint. A layer of plastic film can also be directly laid on the leveling layer.
因为隔离层材料强度低，在隔离层继续施工时，要注意对隔离层加强保护，混凝土运输不能直接在隔离层表面进行，应采取垫板等措施，绑扎钢筋时不得扎破表面，浇捣混凝土时更不能振酥隔离层。
Because of the low strength of the isolation layer material, it is necessary to strengthen the protection of the isolation layer when the construction of the isolation layer continues. The concrete transportation can not be carried out directly on the surface of the isolation layer. The cushion plate and other measures should be taken. When binding the reinforcement, the surface should not be punctured, and the isolation layer should not be vibrated when pouring and tamping concrete.
分格缝留置分格缝留置是为了减少因温差、混凝土干缩、徐变、荷载和振动、地基沉陷等变形造成刚性防水层开裂，分格缝部位应按设计要求设置。如设计无明确规定时，可按下述原则设置分格缝。
The purpose of dividing joint retention is to reduce the cracking of rigid waterproof layer caused by temperature difference, concrete shrinkage, creep, load and vibration, foundation settlement and other deformation. The division joint shall be set according to the design requirements. If there is no specific provision in the design, the dividing joint can be set according to the following principles.