Construction Method of Anti-seepage Crack Protection Layer of Roof Structure

Abstract

In the field of roof construction, the present invention specifically discloses a construction method for a roof structure anti-crack protection layer, including: step 1), pouring cement mortar on the roof structure layer to form a leveling layer, and standing for 1-2h; step 2), Spray water mist on the leveling layer to moisten the surface of the leveling layer; step 3), lay a waterproof and heat-insulating film on the surface of the wet leveling layer, and let it stand for maintenance for 7 days or more; step 4), pour cement on the waterproof and heat-insulating film Mortar and curing to form a surface layer; leveling layer, waterproof and heat-insulating film, and surface layer to form an anti-crack protective layer; the waterproof and heat-insulating film includes the following components in parts by mass: 100 parts of polychlorotrifluoroethylene; 30 parts of polyvinyl alcohol ‑35 parts; 15‑20 parts of polyetherimide; 0.05‑0.1 parts of antioxidant. The invention has the advantage of maintaining the anti-seepage effect of the roof more permanently.

Description

technical field [0001] The invention relates to the field of roof construction, in particular to a construction method for an anti-seepage cracking protective layer of a roof structure. Background technique [0002] The roof is the outermost structure of the building, which plays an important role in protecting the internal structure of the building. Since the building is mostly made of concrete structure, and the concrete structure has general waterproof performance due to the existence of gaps, so the roof structure often needs to be constructed with a waterproof layer. In order to achieve a better waterproof effect, it is difficult for rainwater to pass through the roof and enter the interior of the building, so that the living environment inside the building is more comfortable. [0003] Generally, the waterproof layer is mostly made of polymer waterproof materials. Polymer waterproof materials have good waterproof performance and good impermeability effect, but the tens...

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Problems solved by technology

[0003] Generally, the waterproof layer is mostly made of polymer waterproof materials. Polymer waterproof materials have good waterproof performance and good impermeability effect, but the tensile and tear resistance of polymer materials are relatively low. For high-rise buildings That is to say, under the action of the crustal movement, the building is always in motion, and because of the high height of the building, the movement range of the top is relatively large, so that the waterproof layer is always subject to the stress brought by the movement of the concrete structure, so that the waterproof layer is easily affected by its own Insufficient tensile and tear resistance properties lead to cracks and other damages, resulting in a decline in the impermeability of the roof. Therefore, there is still room for improvement

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