Fireproof and anti-seepage self-insulation external wall of building enclosure structure and its construction method

Abstract

The invention discloses a building envelope fireproof anti-seepage self-insulating outer wall. The outer wall comprises a self-insulting outer wall sandwich panel. The self-insulting outer wall sandwich panel comprises a naked panel body, steel wire mesh frames are arranged on the surfaces of the two sides of the naked panel body respectively, and the distance between each steel wire mesh frame and the naked panel body ranges from 5 mm to 10 mm. The surfaces of the two sides of the self-insulting outer wall sandwich panel are arranged in the following manners that an anti-cracking and anti-seepage concrete reinforcement keel structural layer, a mortar layer and a surface layer are sequentially arranged; the anti-cracking and anti-seepage concrete reinforcement keel structural layer comprises a 3-5 mm polymer interface bonding mortar layer, a premixed anti-seepage fine aggregate concrete layer sprayed on the polymer interface bonding mortar layer , a steel wire mesh frame and a keel assembly, and the steel wire frame and a keel assembly are covered with the premixed anti-seepage fine aggregate concrete layer; the polymer interface bonding mortar layer is directly sprayed on the surface of the naked panel body. The invention further provides a construction method of the building envelope fireproof anti-seepage self-insulating outer wall.

Description

technical field [0001] The invention relates to a fireproof and anti-seepage self-insulation external wall body of a building enclosure structure and a construction method thereof. Background technique [0002] The wall insulation materials currently used in our country are mainly classified into three categories: [0003] 1. Organic materials: polystyrene board, extruded board, polyurethane rigid foam, polycarbonate and phenolic board, etc.; [0004] 2. Inorganic materials: expanded perlite, foam cement, composite silicate board, etc.; [0005] 3. Composite materials: rubber powder polystyrene particle thermal insulation slurry, vitrified microbead thermal insulation mortar, etc. [0006] The Ministry of Housing and Urban-Rural Development of my country currently promotes or once recommended external wall insulation systems, mainly including the following twelve types: [0007] 1.EPS molded polystyrene board thinly plastered for external wall insulation; [0008] 2.EPS ...

AI Technical Summary

Problems solved by technology

The above three inorganic self-insulating wall materials have the following defects: First, the material ratio is complex and diverse, so the quality is not easy to control; second, the molding process is complicated, and it is necessary to press the forming block first, and then use the masonry method to build the wall , and then manually carry out mortar plastering, the process is complicated, the construction is not clean, and it is obviously in a backward state; the third is that the use effect is not good: high thermal conductivity, thick wall, heavy load, not suitable for high-rise and super high-rise buildings, poor integrity, Too many thermal bridges and unsatisfactory thermal insulation performance

[0027] 2. Inorganic material-based external wall thermal insulation systems; such as fiber-reinforced composite thermal insulation board external wall thermal insulation systems, etc., the thermal insulation performance is much worse than that of organic materials, and the thickness of the thermal insulation layer must be increased to meet the energy-saving design requirements , the resulting side effect is to greatly increase the load of the building

Its construction technology is similar or similar to that of organic material external insulation systems, and there are also potential safety hazards during the building's use, and its service life is also limited to 25 years

[0028] 3. Organic-inorganic composite material external wall insulation system; such as rubber powder polystyrene particle insulation slurry, expansion vitrified microbead insulation mortar, etc., because it is a mixture of heterogeneous powder particles, it is an amorphous product, and the production process, The product quality and engineering quality in the construction process have been proved to be uncontrollable, and the energy saving effect cannot be guaranteed at all.

[0029] 4. Self-insulating wall materials of single inorganic materials: such as ①. autoclaved aerated concrete block (brick), ②. ceramsite lightweight concrete block (brick), ③. The thermal insulation performance cannot meet the current national energy-saving standard indicators, and its compressive strength and impermeability performance cannot meet the basic requirements of the wall of the enclosure structure

While the energy-saving effect is not satisfactory, even nailing a shelf or hanging an air conditioner is not reliable when decorating the home.

In addition, the walls made of the above-mentioned various blocks are wide and thick, which greatly occupy the indoor usable area and space of the building, and the gain outweighs the gain.

[0030] From this point of view, the contradictions between my country's building energy conservation (especially the external insulation system of various organic and inorganic materials) and the safety of buildings, the service life of the buildings are not synchronized, and the mismatch is extremely prominent, which is very worrying! This is not just a simple issue of building energy-saving technology, but also hidden hidden dangers of uncontrollable use safety, which will eventually evolve into a widespread and serious social problem

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