Environment-friendly waterproof building outer wall construction method

Abstract

The invention discloses an environment-friendly waterproof building outer wall construction method. The environment-friendly waterproof building outer wall construction method comprises the followingsteps that a, rust removal is conducted on exposed metal of an outer wall body, a steel shovel is used for flatly shoveling a protruding part of the wall body, a brush is used for sweeping dust and powder, finally, high-pressure water is utilized for conducting clean flushing, and standing airing is conducted; b, 1:3 cement mortar with the thickness being 15 mm is used for screeding of the surfaceof the outer wall body, and a leveling layer is formed; c, the leveling layer is coated with a polymer cement waterproof coating with the thickness being 1.0-1.2 mm, and then a polymer waterproof mortar layer with the thickness being 3 mm is used for leveling and covering; d, the surface of an asbestos board is coated with a polyurethane bonding agent, and the asbestos board is glued to the polymer waterproof mortar layer; e, the other face of the asbestos board is provided with an anti-cracking waterproof mortar layer with the thickness being 6-8 mm, pressing of glass fiber gridding cloth isconducted, and then coverage of a layer of anti-cracking waterproof mortar layer with the thickness being 6-8 mm is conducted; and f, finally, the surface of the protection layer is provided with a facing layer. According to the technical scheme, the waterproof performance of the structure is enhanced, and the waterproof crack resisting performance of the outer side of a heat preservation layer is guaranteed.

Description

technical field [0001] The invention relates to the technical field of building exterior wall construction, in particular to a construction method for an environment-friendly waterproof building exterior wall. Background technique [0002] At present, building exterior walls are generally composed of a base layer, a waterproof layer, an insulation layer, and a surface finish layer. The insulation layer is generally composed of filled foam or asbestos boards. There is no waterproof layer outside the insulation layer. After water penetrates into the insulation layer, it will affect its The structure will cause cracking and mildew, which will affect its service life; generally, the outer side of the insulation layer only focuses on crack resistance, while waterproofing is generally ignored, and the crack resistance setting is relatively heavy, which affects the weight ratio of the entire structure. Contents of the invention [0003] Aiming at the problems referred to above, t...

AI Technical Summary

Problems solved by technology

[0002] At present, building exterior walls are generally composed of a base layer, a waterproof layer, an insulation layer, and a surface finish layer. The insulation layer is generally composed of filled foam or asbestos boards. There is no waterproof layer outside the insulation layer. After water penetrates into the insulation layer, it will affect its structure, causing cracking and mildew, affecting its service life; generally, the outer side of the insulation layer only pays attention to crack resistance, while waterproofing is generally ignored, and the crack resistance setting is relatively heavy, which affects the weight ratio of the entire structure