CN209397762U - Compound external wall panel - Google Patents

Abstract

The utility model provides a composite exterior wall panel, which comprises a concrete wall prepared by adding heat-insulating materials to Portland cement, and the inner and outer sides of the concrete wall are respectively provided with an outer decorative layer and an inner decorative layer. The interior of the concrete wall is provided with a double-layer two-way steel mesh, and the double-layer two-way steel mesh includes a first layer of steel mesh and a second layer of steel mesh arranged at intervals, and is connected between the first layer of steel mesh and the second layer of steel mesh. Tie bars between layers of mesh. The composite exterior wall panel of the utility model is suitable for exterior wall panels in prefabricated buildings, and has the properties of light weight, high strength, fire prevention, self-insulation, decoration, waterproof, sound insulation, frost resistance, convenient manufacture, and environmental protection.

Description

Composite siding

technical field

The utility model relates to the technical field of decorative building materials, in particular to a composite exterior wall panel.

Background technique

According to the national building standard design atlas 16J110-2 and 16G333 "Prefabricated Concrete Exterior Wall Hanging Panel (1)", the wall structure of the exterior wall hanging panel project can be divided into: sandwich insulation system, internal insulation system and external insulation system according to the type of insulation. The thermal insulation system is composed of a reinforced concrete layer and a thermal insulation layer through connectors. It has the functions of enclosure, fire protection, heat preservation, heat insulation, sound insulation, and decoration. Because of its high integration, mechanization, industrialization, and product quality It is easy to be effectively controlled, saves labor and material costs, and shortens the construction period, making it widely used in prefabricated buildings. However, the reinforced concrete layer and the insulation layer of the prefabricated concrete external wall panels are independent, and the insulation layer mainly adopts polystyrene board (EPS), extruded plastic board (XPS) or rock wool to realize the insulation function, and ordinary concrete (dry density is about 2500kg/m ³ ), the mass of the overall wall panel is large, which is unfavorable to the force of the main structure, and requires a high load-bearing capacity of the connecting parts with the main structure.

Utility model content

The purpose of the utility model is to provide a composite exterior wall panel which has the functions of light weight, high strength, fire prevention, self-insulation, decoration, waterproof, sound insulation, frost resistance, convenient manufacture and green environmental protection.

In order to solve the technical problem, the utility model provides a composite exterior wall panel, which includes a concrete wall prepared by adding heat-insulating materials to Portland cement, and the inner and outer sides of the concrete wall are respectively provided with an outer decorative layer and an inner Decorative layer, the interior of the concrete wall is provided with a double-layer two-way steel mesh, and the double-layer two-way steel mesh includes a first layer of steel mesh and a second layer of steel mesh arranged at intervals, and the steel bars connected to the first layer Tension bars between the mesh and the second layer of mesh.

Optionally, in the composite exterior wall panel, both the thickness of the exterior decoration layer and the thickness of the interior decoration layer are smaller than the thickness of the concrete wall.

Optionally, in the composite exterior wall panel, the surface of the double-layer bidirectional steel mesh has an antirust layer.

Optionally, in the composite exterior wall panel, the concrete wall is bonded to the exterior decoration layer, and the concrete wall is bonded to the interior decoration layer.

Optionally, in the composite exterior wall panel, both the exterior decoration layer and the interior decoration layer include a board and a decorative surface formed on the board.

Optionally, in the composite exterior wall board, the board is a cement-based board or an inorganic resin board.

Optionally, in the composite exterior wall panel, the cement-based substrate is provided with grid cloth or mixed with fiber material.

Optionally, in the composite exterior wall panel, the decorative surface is a real stone paint layer, a fluorocarbon paint layer or a paint layer.

The composite exterior wall panel provided by the utility model is produced by industrial production, thereby forming a composite exterior wall panel with light weight, high strength, fire prevention, self-insulation, decoration, waterproof, sound insulation, frost resistance, convenient manufacture and green environmental protection. The wall panel does not need on-site production, the production cost is reduced, and it is suitable for industrial application of construction. The composite exterior wall panel of the utility model uses Portland cement as the main material, and the concrete wall is prepared by adding thermal insulation materials and other additives. Compared with the traditional prefabricated concrete external wall panel prepared by cement, it has light weight, It has the advantages of heat preservation, the fire resistance performance reaches B1 level or above, and the thermal conductivity is not more than 0.08W/(m·K) to meet the performance requirements of building exterior walls. The structure of the utility model does not need to be provided with a separate insulation layer, and has the effect of simple structure. A double-layer two-way steel mesh connected by tie bars is arranged inside the concrete wall to form a reinforced concrete wall structure, thereby improving the mechanical performance and deformation capacity of the composite exterior wall panel.

The utility model adds binders, anti-cracking agents, plasticizers, foaming agents and industrial wastes into the Portland cement, and the binders are beneficial to the mixing and bonding of various materials of the reinforced concrete wall, enhancing The strength of the composite exterior wall board; the anti-cracking agent helps to prevent the cracking of the reinforced concrete wall; the plasticizer reduces the number of pores in the concrete by reducing the mixing water in the concrete, and the structure is dense, which improves the anti-cracking effect. Permeability and frost resistance; also doped with industrial waste in concrete, industrial waste has played a role in saving resources, eliminating waste, and protecting the environment; the foaming agent can increase the thermal insulation performance of the concrete wall, reduce the weight.

Description of drawings

Fig. 1 is a schematic structural view of a composite exterior wall panel;

Fig. 2 is A-A sectional view among Fig. 1;

Fig. 3 is the structural representation of double-deck two-way reinforced mesh;

As shown in the figure:

100-composite exterior wall panel; 110-concrete wall; 120-outer decoration layer; 121-outer decoration surface; 122-outer decoration layer plate; 130-inner decoration layer; 131 inner decoration surface; 140-double-layer two-way reinforcement mesh; 150-tie reinforcement.

Detailed ways

The composite exterior wall panel proposed by the utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description and claims, the advantages and features of the utility model will be more clear. It should be noted that all the drawings are in very simplified form and use inaccurate scales, which are only used to facilitate and clearly illustrate the purpose of the embodiment of the present utility model. In addition, the structures shown in the drawings are often a part of the actual structures. In particular, each drawing needs to display different emphases, and sometimes uses different scales.

Embodiment one

Please refer to FIG. 1 to FIG. 3 , the first embodiment provides a composite exterior wall panel 100, which includes a concrete wall 110 prepared by adding heat-insulating materials to Portland cement, and the inner and outer sides of the concrete wall 110 are respectively The outer decorative layer 120 and the inner decorative layer 130 that are arranged by adhesion, the inside of the concrete wall 110 is provided with a double-layer two-way steel mesh 140, and the double-layer two-way steel mesh 140 includes the first layer of steel mesh and the second layer of steel mesh arranged at intervals. A layer of reinforcement mesh, and tie bars 150 connected between the first layer of reinforcement mesh and the second layer of reinforcement mesh. Wherein the concrete wall body 110 can be fixedly connected with the interior and exterior decoration layers in other ways.

The composite exterior wall panel 100 provided in this embodiment 1 is manufactured by industrial production, thus forming a light-weight, high-strength, fire-resistant, self-insulating, decorative, waterproof, sound-proof, anti-freeze, easy-to-manufacture and green environmental protection performance. The composite exterior wall panel does not require on-site production, reduces production costs, and is suitable for construction industrial applications. The composite exterior wallboard of the first embodiment uses Portland cement as the main material, adding heat insulation materials and other additives to the concrete wall. Self-insulation and other advantages, the fire resistance performance can reach B1 level or above, and the thermal conductivity is not more than 0.08W/(m·K) to meet the performance requirements of building exterior walls. The composite exterior wall panel 100 provided in the first embodiment does not need to provide a separate insulation layer in structure, and has the effect of simple structure. A double-layer two-way steel mesh connected by tie bars is arranged inside the concrete wall to form a reinforced concrete wall structure, thereby improving the mechanical performance and deformation capacity of the composite outer wall panel.

The thermal insulation material in the first embodiment can be inorganic lightweight thermal insulation materials such as expanded perlite, glass fiber or mineralized wood wool fiber. Among them, expanded perlite, glass fibers or mineralized wood wool fibers are beneficial to reduce the weight of the concrete wall 110 and reduce the thermal conductivity of the concrete wall 110. The addition of various heat insulating materials makes the thermal conductivity not greater than 0.08W/(m • K), wherein not only expanded perlite, glass fibers, mineralized wood wool fibers and combinations thereof can be used, but also fibers of similar properties which contribute to weight reduction and lower thermal conductivity.

Adhesives can also be added to Portland cement, which is beneficial to the mixing and bonding of more than 110 materials in the concrete wall, and enhances the strength of the composite exterior wall panel 100 .

In Portland cement, an anti-cracking agent can also be added, which is beneficial to prevent the wall from cracking.

In Portland cement, a plasticizer can also be added, which can reduce the number of pores in the concrete by reducing the mixing water in the concrete, make the structure dense, and improve the impermeability and frost resistance.

Doping industrial waste can also be added to Portland cement, which can save resources, eliminate waste, and protect the environment.

In Portland cement, a foaming agent can also be added, which can increase the thermal insulation effect of the concrete wall and reduce the weight of the wallboard itself.

Please refer to Fig. 1 to Fig. 3, in the first embodiment, the double-layer two-way steel mesh 140 is distributed in the concrete wall 110 in a grid shape, and the two-way steel bars made by longitudinal and transverse steel bars cross by binding or welding In this embodiment, the thickness of the composite exterior wall panel 100 can be, for example, 100mm-240mm, but it is not limited to this thickness, and can be properly adjusted according to actual needs. In order to strengthen the strength of the composite exterior wall panel 100, the double Layer two-way steel mesh 140 is set to two layers, and two layers are connected by a plurality of tie reinforcement bars 150, so that the two layers of steel mesh become a whole, and tie tie bars 150 can increase the strength between the double-layer two-way steel mesh 140, Thereby increasing the mechanical performance and deformation capacity of the reinforced concrete wall. Of course, it is conceivable that the grid shape of the double-layer two-way steel mesh 140 is not only two-way vertical, but also a variety of mesh structures, and the two-way steel mesh in the concrete wall 110 is not limited to one or more layers. Two layers, if the composite exterior wall panel 100 has relatively high strength requirements, more than three layers of two-way steel mesh can be used.

In this embodiment one, the surface of the double-layer two-way steel mesh 140 also has an anti-rust layer, and iron and air are easily exposed to chemical reactions on the surface to generate rust. The anti-rust layer can effectively reduce the corrosion of steel bars, making the composite exterior wall The stability and durability of the board 100 is greatly increased.

Please refer to FIG. 1 , in the first embodiment, the outer decoration layer 120 and the inner decoration layer 130 are connected to the concrete wall 110 . The outer decorative layer plate 122 of the outer decorative layer 120 is connected to the concrete wall 110 by gluing, and the inner decorative layer plate 132 of the inner decorative layer 130 is connected to the concrete wall 110 by gluing.

Please refer to Fig. 1, in the composite exterior wall panel 100 provided by the present embodiment, the interior decoration layer 130 is divided into an interior decoration layer decoration surface 131 and an interior decoration layer plate 132, and the exterior decoration layer 120 is divided into an exterior decoration layer decoration surface 121 and an exterior decoration layer decoration surface 121. Decorative layer board 122 . Wherein the outer decorative layer plate 122 and the inner decorative layer plate 132 can adopt cement substrate, and the outer decorative layer plate 122 and the inner decorative layer plate 132 can also be provided with mesh cloth, doped fiber material or a combination thereof, so Real stone paint can be selected for the decorative surface 121 of the outer decorative layer and the decorative surface 131 of the inner decorative layer. Real stone paint is water-based, environmentally friendly, high in quality, good in anti-ultraviolet and weathering performance, and strong in self-cleaning ability, which protects the concrete wall 110 from the outside world. Direct contact can also beautify the multi-functional composite board, and it is also operable for the appearance, playing a decorative role.

In the first embodiment, the material of the outer decorative layer plate 122 and the inner decorative layer plate 132 is cement substrate, when selecting the material of the outer decorative layer plate 122 and the inner decorative layer plate 132, it is also possible to consider the composite exterior wall The board 100 is required to be waterproof, so it is better to choose an inorganic resin board. The inorganic resin board can have different effects on the composite exterior wall board 100. This material is flexible and can further reduce the weight of the multifunctional composite board. , also has a certain waterproof function.

Embodiment two

The difference between the second embodiment and the first embodiment is that the material of the decorative surface 121 of the outer decorative layer and the decorative surface 131 of the inner decorative layer can be fluorocarbon paint or paint layer, and the fluorocarbon paint can be used in harsh environments. No pulverization and no falling off, waterproof and dustproof, can guarantee decoration and adhesion for a long time, and has excellent flexibility, full color and good texture.

The above description is only a description of the preferred embodiments of the present utility model, and is not any limitation to the scope of the present utility model. Any changes and modifications made by those of ordinary skill in the field of the utility model according to the above disclosures all belong to the protection scope of the claims .

Claims (7)

1. a kind of compound external wall panel, which is characterized in that including concrete wall, set respectively inside and outside the concrete wall It is equipped with outer decorative layer and internal decking sheet, the concrete wall is internally provided with double-layer double-direction steel mesh, the double-layer double-direction Steel mesh includes spaced first layer steel mesh and second layer steel mesh, and is connected to the first layer steel mesh and Steel tie between two layers of steel mesh.

2. compound external wall panel as described in claim 1, which is characterized in that the thickness of the outer decorative layer and the internal decking sheet Thickness be respectively less than the thickness of the concrete wall.

3. compound external wall panel as described in claim 1, which is characterized in that the double-layer double-direction reinforcing bar net surface has antirust Layer.

4. compound external wall panel as described in claim 1, which is characterized in that the concrete wall and the outer decorative layer are viscous It connects, the concrete wall is Nian Jie with the internal decking sheet.

5. compound external wall panel as described in claim 1, which is characterized in that the outer decorative layer and internal decking sheet include plate With the decorative cover being formed on plate.

6. compound external wall panel as claimed in claim 5, which is characterized in that the plate is cement base plate or inorganic resin Plate.

7. compound external wall panel as claimed in claim 5, which is characterized in that the decorative cover be lacquer layer, F-C paint layer or Dope layer.