1. Base treatment requirements: smooth, solid, clean, no floating ash and oil stains, detailed processing is complete.
2. Principles to be followed when applying waterproof layer:
When applying the waterproof layer, small parts (tube root, water leakage hole, etc.) and then the large surface (wall surface and ground). Circular arc shapes should be makde to be applied the inside and outside corners. Before large-area waterproof construction, fill the sealing material in the reserved groove according to the design requirements, and brush the coating twice with the brush at the corner. The waterproof coating is fully coated, no missing, and firmly bonded to the base layer. No bubbles, no cracks, no delamination, smooth surface, the brushing height is basically uniform and uniform, and the thickness must meet the requirements of the product. Waterproof coating construction should be carried out step by step according to the time schedule specified in the manual.
3. Supervision during waterproof construction:
1). Waterproof parts should all be covered;
2). The waterproof layer should be painted and brushed to a certain thickness in strict accordance with the product specifications.
3). The construction process should be meticulous: the joint between the wall and the ground, the inside and outside corner, the water pipe, floor drain and the surrounding of the sanitary ware and the anchor ditch in the cold and heat pipe are the key waterproof parts, which must be meticulous in construction.
4. Protective layer after waterproof construction
After the waterproof layer is completed, it is necessary to continue to apply the tiling on the top. It is often easy to cause damage to the waterproof layer. If it is not repaired or found in the damaged place, it will inevitably cause leakage in the future. Therefore, it is necessary to apply a protective layer. The cement is added to the interface agent and then the rigid waterproof material is added to stir the uniform coating. The strength of the mixture is higher than that of the general concrete material after being condensed, and the addition of the rigid waterproof material is also a waterproof barrier, which is intended to be both. This kind of waterproofing can be foolproof.
5. Acceptance after waterproofing
1). For non-lightweight walls:
The water-tight experiment can verify whether the waterproof function of the waterproof layer is normal. In the closed water test, the door and the drain should be sealed. The depth of the highest aquifer should be no less than 20mm, and the water storage time should be no less than 24 hours. Check for leaks. Visual inspection: Open the toilet downstairs to see if there are water seepage or water drops. Contact inspection method; touch the suspected water seepage to confirm the water leakage.
2). For light wall waterproof construction acceptance
The water spray test, that is, the water pipe on the wall surface of the waterproof coating is sprayed continuously from top to bottom for 3 or 4 minutes, and the other side of the wall has no penetration phenomenon.