Building external wall waterproof and crack resistant thermal insulation structure

Abstract

The invention discloses a building external wall waterproof and crack resistant thermal insulation structure. The building external wall waterproof and crack resistant thermal insulation structure comprises a wall base layer. A polymer waterproof mortar bottom layer is arranged on the wall base layer, the polymer waterproof mortar bottom layer is provided with a galvanized steel wire net, and thegalvanized steel wire net is provided with a polymer waterproof mortar surface layer; and the polymer waterproof mortar surface layer is provided with a thermal insulation layer, and the thermal insulation layer is provided with a polymer waterproof crack resistant mortar layer. According to the building external wall waterproof and crack resistant thermal insulation structure, compared with the prior art, the problem that the crack resistant strength of a building external wall is poor can be solved, the waterproof performance of the wall base layer is improved, the reinforcing effect of thewall base layer is achieved, the structure is simple, construction is convenient, the cost is low, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of waterproofing in construction engineering, in particular to a waterproof and crack-resistant thermal insulation structure for exterior walls of buildings. Background technique [0002] In recent years, the "Technical Regulations for Waterproof Engineering of Building Exterior Walls" has made relevant regulations on the waterproofing of exterior walls. According to the requirements of the "Technical Regulations for Waterproof Engineering of Building Exterior Walls", the existing waterproofing of external walls can only set up the waterproof layer between the insulation layer and the base layer of the structural wall, not between the insulation layer and the surface layer. As a result, when the insulation board is fixed with fixings for external wall insulation, the anchor bolts used to fix the insulation layer will destroy the integrity of the waterproof layer between the base layer and the surface layer o...

AI Technical Summary

Problems solved by technology

According to the requirements of the "Technical Regulations for Waterproof Engineering of Building Exterior Walls", the existing waterproofing of external walls can only set up the waterproof layer between the insulation layer and the base layer of the structural wall, not between the insulation layer and the surface layer. As a result, when the insulation board is fixed with fixing parts for external wall insulation, the anchor bolts used to fix the insulation layer will destroy the integrity of the waterproof layer between the base layer and the surface layer of the structural wall, resulting in hidden dangers of water leakage

When the anti-cracking mortar leaks and cracks, water will enter the insulation layer and thus enter the inner wall. When there is moisture in the insulation layer, the insulation layer will fall off due to the damage of the freeze-thaw cycle in autumn and winter, and the surface layer pasted together It will also fall off together with the insulation layer, causing damage to the outer wall and waterproof layer, and posing a serious threat to the personal safety of residents; at the same time, in the prior art, only when the thickness of the mortar layer exceeds 35mm is the galvanized steel wire mesh arranged, but in practice In use, the anti-cracking effect of the building's exterior wall structure is not good, and there are still many cracks; the mortar layer is made of ordinary cement mortar, and the surface layer of the insulation layer only has the anti-cracking effect, which also causes the base layer of the wall. Good for exterior wall waterproofing

[0003] This shows that above-mentioned existing a kind of external wall waterproof structure obviously still has inconvenience and defect in structure and use, and needs to be further improved urgently

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