Outer wall surface reconstruction structure

Abstract

The utility model discloses an outer wall surface transformation structure, and belongs to the technical field of building outer wall surface transformation. The structure comprises an original wall body with a hollow drum being chiseled away, and an adhesion agent layer, an anti-crack waterproof mortar layer, a fine and smooth sublayer, a primer layer and a decorative surface layer are sequentially arranged on the original wall body from inside to outside. The old wall surface is modified by the interface agent layer, the anti-crack waterproof mortar layer, the fine and smooth sublayer, the primer layer and the decorative surface layer mainly through coating or spraying construction, punching on the original wall body is not needed, the labor intensity of outer wall surface modification is reduced, and the safety risk is low.

Description

Technical Field

[0001] The utility model relates to a structure for exterior wall renovation, belonging to the technical field of exterior wall renovation of buildings. Background Art

[0002] Due to various factors such as the construction period and construction method of old buildings, they can no longer adapt to the development of modern cities. It is very necessary to carry out certain upgrading and renovation designs for these old buildings. Among them, the renovation of the building facade occupies a main position in the whole renovation work. In the existing facade renovation, the renovation of the wall is usually to directly remove the original exterior wall, and then carry out corresponding decoration according to the design to achieve the design effect. However, the practice of directly removing the original exterior wall has the following disadvantages: it causes secondary damage to the original wall and affects the structural safety of the house; there is a risk of falling of the construction waste of the removed exterior wall, and the safety protection pressure is high; the removed construction waste needs to be centrally collected and transported, wasting manpower and material resources, and the construction period is long; the dust generated by removing the exterior wall pollutes the environment.

[0003] For this reason, the Chinese patent document with the publication number CN215717496U discloses a structure for exterior wall renovation, including an A interface agent layer, a cement mortar layer, a B interface agent layer and an extruded polystyrene board. The A interface agent layer is coated on the structural base layer after removing the aged exterior wall of the original wall; the cement mortar layer is coated on the A interface agent layer, and the cement mortar layer is leveled to the ceramic tile surface / plaster layer on the original wall; the B interface agent layer is coated on the cement mortar layer, and the extruded polystyrene board is bonded to the B interface agent layer, and the extruded polystyrene board is fixed on the structural base layer after removing the aged exterior wall of the original wall by anchor bolts. It maintains the safety of the wall structure and prevents further erosion of the wall structure by rain, wind, etc.; reduces the risk of falling of construction waste, and reduces the safety protection pressure; reduces the collection and transportation of construction waste, saves manpower and material resources, and shortens the construction period; reduces the pollution of the environment by the dust generated by removing the exterior wall, and has good economic effects.

[0004] During the process of renovating the exterior wall, it is necessary to drill holes in the structural base layer of the original wall, and then install the extruded polystyrene board on the structural base layer of the original wall through anchor bolts. However, drilling holes in the original wall has a large labor intensity and a high safety risk. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a structure for exterior wall renovation.

[0006] The utility model is realized through the following technical solutions:

[0007] An external wall surface renovation structure includes an original wall body with hollow parts chiseled off, and an interface agent layer, an anti-crack waterproof mortar layer, a fine putty layer, a primer layer, and a decorative finish layer are sequentially arranged on the original wall body from the inside to the outside.

[0008] The interface agent layer is a ceramic tile interface agent layer.

[0009] The anti-crack waterproof mortar layer includes a first anti-crack waterproof mortar layer and a second anti-crack waterproof mortar layer. The first anti-crack waterproof mortar layer is coated on the interface agent layer, and a fiberglass mesh cloth is embedded in the first anti-crack waterproof mortar layer. The second anti-crack waterproof mortar layer is coated on the first anti-crack waterproof mortar layer.

[0010] The primer layer is an alkali-resistant sealing primer layer.

[0011] The decorative finish layer is a real stone paint layer.

[0012] A sodium methyl silicate water repellent layer is sprayed outside the decorative finish layer.

[0013] A dividing paint layer is arranged between the decorative finish layer and the primer layer.

[0014] Dividing lines are arranged on the dividing paint layer, and the dividing lines are removed after the construction of the decorative finish layer is completed.

[0015] The beneficial effects of the present utility model are as follows: The renovation of the old wall surface by the interface agent layer, the anti-crack waterproof mortar layer, the fine putty layer, the primer layer, and the decorative finish layer mainly adopts coating or spraying construction, without the need to drill holes in the original wall body, reducing the labor intensity of the external wall surface renovation and having a low safety risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is Figure 1 a partial enlarged view at A.

[0018] In the figure: 1 - original wall body, 2 - interface agent layer, 3 - anti-crack waterproof mortar layer, 30 - first anti-crack waterproof mortar layer, 31 - second anti-crack waterproof mortar layer, 4 - fiberglass mesh cloth, 5 - fine putty layer, 50 - first fine putty layer, 51 - second fine putty layer, 6 - primer layer, 7 - dividing paint layer, 8 - dividing lines, 9 - decorative finish layer, 90 - first real stone paint layer, 91 - second real stone paint layer, 10 - sodium methyl silicate water repellent layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions of the present utility model will be further described below, but the scope of protection claimed is not limited thereto.

[0020] Such asFigure 1 and Figure 2 As shown in Figure 2 , a renovation structure for an exterior wall surface of the present utility model includes an original wall body 1 with hollow parts chiseled off. An interface agent layer 2, an anti-cracking waterproof mortar layer 3, a fine putty layer 5, a primer layer 6, and a decorative finish layer 9 are sequentially arranged on the original wall body 1 from the inside to the outside. The renovation of the old wall surface by the interface agent layer 2, the anti-cracking waterproof mortar layer 3, the fine putty layer 5, the primer layer 6, and the decorative finish layer 9 mainly adopts coating or spraying construction, without the need to drill holes in the original wall body 1, reducing the labor intensity of the exterior wall surface renovation and having a low safety risk. Specifically, the fine putty layer 5 includes a first fine putty layer 50 and a second fine putty layer 51. After scraping a fine putty to form the first fine putty layer 50, a leveling fine putty is used to form the second fine putty layer 51.

[0021] The interface agent layer 2 is a ceramic tile interface agent layer. The ceramic tile interface agent has permeability, adhesiveness, water resistance, air permeability, and weather resistance functions, and can form a network system on the bottom layer of the original wall body 1, making the surface of the bottom layer of the original wall body 1 rough, increasing its adhesiveness, and preventing the anti-cracking waterproof mortar layer 3 from bulging and peeling off.

[0022] The anti-cracking waterproof mortar layer 3 includes a first anti-cracking waterproof mortar layer 30 and a second anti-cracking waterproof mortar layer 31. The first anti-cracking waterproof mortar layer 30 is coated on the interface agent layer 2, and a fiberglass mesh cloth 4 is embedded in the first anti-cracking waterproof mortar layer 30. The second anti-cracking waterproof mortar layer 31 is coated on the first anti-cracking waterproof mortar layer 30. The thicknesses of both the first anti-cracking waterproof mortar layer 30 and the second anti-cracking waterproof mortar layer 31 are 4 mm. The anti-cracking waterproof mortar is polymer cement mortar. After the polymer cement mortar hardens, the polymer in the mortar can effectively seal the connected pores, increase the compactness and crack resistance of the mortar, thereby improving the anti-seepage and anti-impact properties of the mortar.

[0023] The primer layer 6 is an alkali-resistant sealer primer layer. The alkali-resistant sealer primer coating has outstanding alkali resistance and sealing performance, can effectively resist the erosion of alkaline substances, prevent alkaline reactions on the wall surface, and thus extend the service life of the wall paint.

[0024] The decorative finish layer 9 is a real stone paint layer. The real stone paint layer has an imitation stone effect and is used to beautify the exterior wall surface. The real stone paint layer includes a first real stone paint layer 90 and a second real stone paint layer 91. After the construction of the second real stone paint layer 91 is completed, it is polished, and then the dividing lines 8 are removed.

[0025] A sodium methylsilicate water-repellent agent layer 10 is sprayed outside the decorative finish layer 9. The sodium methylsilicate water-repellent agent layer 10 is used for exterior wall waterproofing and has functions such as acid and alkali resistance, aging resistance, anti-carbonation, alkali efflorescence prevention, moisture proofing, and mildew proofing.

[0026] A dividing paint layer 7 is provided between the decorative finish layer 9 and the primer layer 6.

[0027] Partition lines 8 are provided on the partition paint layer 7, and the partition lines 8 are removed after the construction of the decorative surface layer 9 is completed. After the partition lines 8 are removed, multiple partition joints are formed on the outer wall surface, which plays a role in beautifying the outer wall surface.

Claims

1. An exterior wall reconstruction structure, characterized in that: It comprises an original wall (1) from which hollows have been chiseled out, wherein the original wall (1) is provided with an interface agent layer (2), an anti-cracking and waterproof mortar layer (3), a fine sub-layer (5), a primer layer (6) and a decorative surface layer (9) in sequence from the inside to the outside; The primer layer (6) is an alkali-resistant sealing primer layer; The decorative surface layer (9) is sprayed with a sodium methylsiliconate water-repellent layer (10); A grid paint layer (7) is provided between the decorative surface layer (9) and the primer layer (6); The grid paint layer (7) is provided with grid lines (8), and the grid lines (8) are removed after the construction of the decorative surface layer (9) is completed.

2. The exterior wall reconstruction structure according to claim 1, characterized in that: The interface agent layer (2) is a tile interface agent layer.

3. The exterior wall reconstruction structure according to claim 1, characterized in that: The anti-crack waterproof mortar layer (3) comprises a first anti-crack waterproof mortar layer (30) and a second anti-crack waterproof mortar layer (31); the first anti-crack waterproof mortar layer (30) is coated on the interface agent layer (2), and a glass fiber mesh cloth (4) is embedded in the first anti-crack waterproof mortar layer (30); and the second anti-crack waterproof mortar layer (31) is coated on the first anti-crack waterproof mortar layer (30).

4. The exterior wall reconstruction structure according to claim 1, characterized in that: The decorative surface layer (9) is a real stone paint layer.

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