Waterproof construction method for roof, basement exterior wall and basement roof

Abstract

The invention provides a waterproof construction method for a roof. The first inversion method for construction from top to bottom is characterized by comprising the following steps that a, a C20 fine aggregate concrete protective layer with the thickness being 40mm is arranged, and phi 4@150 steel bars are arranged in the C20 fine aggregate concrete protective layer; b, a low-grade cement mortar isolation layer with the thickness being 10 mm or a plastic film isolation layer with the thickness being 0.4mm is arranged; c, a heat preservation layer arranged on a flame-retardant XPS heat preservation plate with the thickness being 70mm is arranged; d, an SBS modified asphalt waterproof coiled material with the thickness being 4mm is arranged; e, a polyurethane waterproof coating with the thickness being 1.5mm or a JS waterproof coating with the thickness being 1.5mm is arranged; and f, a reinforced concrete roof plate is subjected to light receiving and plastering or a surface layer is polished to be flat, and dust is removed. The waterproof construction method for the roof, a basement exterior wall and a basement roof has the advantages that the waterproof performance of reinforced concrete is enhanced, the construction quality of the coating waterproof layer is controlled, the probability of leakage is greatly reduced, the maintenance cost is reduced, unknown losses are reduced, leveling layers are reduced, and the construction cost is reduced.

Description

technical field [0001] The invention relates to a building waterproof construction method, in particular to a waterproof construction method for roofs, basement exterior walls and basement roofs. Background technique [0002] At present, major design institutes mainly adopt the relevant methods in Atlas 16CJ40-14 Building Waterproof System and 10J301-Underground Building Waterproof Structure for roof building waterproofing, basement exterior wall waterproofing, and basement roof waterproofing. By organizing the above atlas and related practices of the Design Institute, it can be summarized as follows: [0003] 1. The main methods of roof waterproofing are: (16CJ40-13 pages), each process is from top to bottom [0004] The first method: waterproof layer; 20mm thick 1:2.5 cement mortar leveling layer; 40mm thick fine stone concrete protective layer; thermal insulation layer; reinforced concrete roof panel. [0005] The second method: 40mm thick C20 fine stone concrete protec...

AI Technical Summary

Problems solved by technology

[0021] 1. From a structural point of view, the roof concrete roof itself is allowed to work with cracks, and the construction methods of the waterproof layer are divided into strip pavement, full pavement, and point sticking. No matter which construction method is used, the current manual construction is random. It is difficult to guarantee 100% that there is no gap in the overall waterproof layer. This is also the root cause of roof waterproof leakage. Therefore, the key to controlling waterproofing is to control the engineering quality of the concrete itself to reduce the possibility of cracks, and to control the quality of the concrete itself. The construction quality of the mortar leveling layer, slope layer and waterproof layer between the waterproof layer and the mortar leveling layer and other layers do not have waterproof capabilities. Even if waterproof mortar is used, it is affected by artificial Factors, weather reasons, and the impact of the dry shrinkage of the mortar material itself will greatly reduce the waterproof ability of the waterproof mortar. Once the waterproof layer leaks, the water will find the leveling layer or the weak point of the leveling layer, reach the waterproof concrete roof, and then pass through the concrete. Roof cracks leak, which is why it is difficult to accurately find the leak point of the waterproof layer once there is leakage in the current roof waterproofing method

[0022] 2. For the waterproofing of basement walls, the same waterproof layer and leveling layer are subject to randomness of manual operation, material characteristics, environment and other factors, so it is difficult to ensure the integrity of the waterproof layer as a whole, and the waterproof concrete of the outer wall is also allowed to have cracks At the same time, the outer wall is affected by factors such as the wall-penetrating screw, and there will be more cracks. These are the main factors for the leakage of the outer wall, and it is also the reason why it is difficult to accurately find the leakage point of the waterproof layer.

[0023] 3. The leveling layer is directly made on the waterproof concrete of the basement roof, and then the waterproof coil or waterproof coating is applied, and the same leakage situation as the above-mentioned roof roof and basement exterior wall waterproofing will occur; when the waterproof concrete roof is used for cement-based infiltration crystallization Waterproof, then do waterproof coating, a base film is formed on the surface of the concrete, which improves the waterproof ability of the concrete itself, but the cement-based permeable crystalline waterproof coating is a rigid waterproof coating, and its own deformation is small. If there are large cracks in the concrete, the waterproof effect will be improved. It will be affected, especially during the construction process, it will be greatly affected by environmental factors, which will easily cause water loss and cracks in the waterproof coating film

At the same time, there are many pipe networks on the top of the basement roof. When steel pipes pass through the roof, the cement-based permeable crystalline waterproof coating cannot meet the waterproof requirements of two different material substrates. Therefore, it is necessary to find another waterproof material with a better material to solve the problem.

[0024] Therefore known roofing, basement exterior wall, basement roof waterproof construction method exist above-mentioned various inconveniences and problems