Construction method of skyline plate assembled roof coating waterproof layer at deformation joint

Abstract

The invention provides a construction method of a skyline plate assembled roof coating waterproof layer at a deformation joint. The construction method comprises the steps of laying a polyethylene polypropylene fiber coiled material, forming a textured paper isolation layer, spraying a concrete interface agent, constructing a waterproof coating additional layer, spraying a guniting coating and the like; and all the steps are mutually linked and completed at a time. The construction method has the obvious and outstanding substantive features, the construction mode of a conventional waterproof layer at the deformation joint is overturned essentially, the overall load of a skyline plate roof is reduced, the safety of an assembled building is improved, the construction method is an innovative technology worthy of large-area popularization, and especially the construction method can be used for waterproof construction of other parts of the assembled roof and even a conventional building roof.

Description

technical field [0001] The invention belongs to the technical field of building roof waterproof construction, and in particular relates to a construction method of a skyboard assembled roof paint waterproof layer at deformation joints. Background technique [0002] For prefabricated buildings, the sky plate is usually welded on the portal steel frame as the roof. The roof needs to be constructed as a waterproof layer, and the conventional construction steps at the deformation joints are combined. figure 1 as follows: [0003] 1. Filling of deformation joints: use polymer mortar to evenly paste the non-combustible insulation board 4 on the inside, outside and top of the aerated concrete block A2 on the left and right sides of the deformation joint, and in the grooves on the left and right sides of the deformation joint. A long circular groove is reserved on the non-combustible insulation board at the top of the inner side of the block A for placing the polystyrene foam rod 9...

AI Technical Summary

Problems solved by technology

[0013] 1. When the wind is strong, a wind vortex will be formed at the deformation joint, and the wind vortex will cause a small amount of shaking on the skyboard of the entire roof. These shakings will cause degumming between the waterproof membrane layers and between the waterproof membrane layers and the roof. Cracking, and welding at the joints is required when laying the waterproof membrane, especially the welding of the internal and external corners is complicated, and shaking will also cause these welds to be pulled apart. The above two situations will cause the roof to lose its waterproof effect

[0014] 2. Under the influence of strong wind or surrounding vibration, the deformation joints will be displaced or separated, and the second layer of additional coils, the first layer of additional coils, waterproof coils, additional waterproof layers, etc. will be separated from the skyboard due to shear force Or due to internal fracture due to tension, the roof of the building cannot meet the original design waterproof requirements. This phenomenon is especially common in coastal areas with strong typhoons or within the impact range of railway train vibrations

[0015] 3. The second layer of additional coiled material, the first layer of additional coiled material, the waterproof coiled material, the additional waterproof layer and the concrete leveling layer are pasted together with adhesive. The aging life of the adhesive is often shorter than that of the waterproof coiled material. When the waterproof coil When the material is within the normal service life, its adhesive has aged and failed, eventually causing the entire waterproof layer to be laid empty on the roof, forming a water leakage channel between the waterproof layer and the roof, and the sky slab is soaked in water for a long time, eventually causing the slab to If the body rots or even falls, the waterproof function cannot be realized, and the safety of the building cannot be guaranteed.

[0016] 4. The above-mentioned construction process has many steps, the process is relatively complicated, the construction quality is not easy to control, and the aging resistance index of the domestic waterproof coiled material is low, while the imported waterproof coiled material is expensive, and the protective layer needs to be constructed. high

[0017] How to eliminate and solve the above-mentioned problems is one of the common research topics in this field, but so far, no research results to solve the above-mentioned problems have been seen.

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