Assembled prefabricated sandwich insulation exterior wall vertical seam waterproof structure and implementation method

Abstract

The invention discloses an assembly type prefabricated sandwich thermal-insulation outer wall vertical abutted seam waterproof structure and an implementation method, and belongs to the technical field of abutted seam waterproof treatment. The waterproof structure comprises a prefabricated outer wall board, a cast-in-place outer wall board and a reserved horizontal abutted seam; the prefabricatedouter wall board comprises a first PCF outer wall formwork and a precast concrete slab; the cast-in-place outer wall board comprises a second PCF outer wall formwork and cast-in-place concrete; the first PCF outer wall formwork and the second PCF outer wall formwork are jointed; the precast concrete slab and the cast-in-place concrete are jointed through a corrugated surface; each of the first PCFouter wall formwork and the second PCF outer wall formwork comprises a thermal-insulation layer, a backing material and a weather-resistant building sealing layer; vertical water drainage cavities are formed between the thermal-insulation layers and the backing materials; upwards-inclined water stop plates are arranged on the backing materials and are fixedly connected with the thermal-insulationlayers; water guiding pipes are arranged on the water stop plates; the horizontal abutted seam comprises a horizontal water drainage cavity; and two layers of waterproof units are arranged in the horizontal water drainage cavity from outside to inside. Multi-stage water resistance is adopted, so that the efficient waterproof effect is realized, and construction is facilitated.

Description

technical field [0001] The invention belongs to the technical field of seam waterproofing treatment, and in particular relates to a vertical seam waterproof structure and an implementation method of an assembled prefabricated sandwich thermal insulation outer wall. Background technique [0002] Assembled structure means that the components are industrially produced in the factory and transported to the site for direct assembly. The components are produced in a standardized manner in the factory to achieve standardized quality, which is conducive to on-site dust and noise reduction, reduces solid waste generation, reduces on-site staffing, reduces turnover material allocation, and achieves on-site green construction. The prefabricated components of the external wall have their own insulation layer, and the construction of the main building does not require traditional external scaffolding. Compared with the traditional cast-in-place structure, it is more convenient and fast, ...

AI Technical Summary

Problems solved by technology

[0003] When installing the prefabricated exterior wall of the prefabricated structure, 20mm joints are reserved between the walls. It is difficult to deal with the subsequent joints. The current treatment method is to inject construction glue into the joints. This method is greatly affected by the working environment, such as humidity , temperature, etc., it is likely to cause water seepage at the joints, causing hidden dangers

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