Fabricated heat preservation, water resistance and decoration integrated concrete external wall panel

Abstract

The invention provides an assembly type heat preservation, waterproof and decoration integrated concrete external wall panel, relates to the field of assembly type wall panels, and aims to solve the problems of low waterproof and heat preservation construction efficiency and a large amount of on-site wet operation of an external wall at present, the prefabricated integrated concrete external wall panel is adopted, and the external wall panel is connected by arranging a steel bar truss; the connecting strength between the concrete inner acanthus and the concrete outer acanthus is enhanced, the problem that the overall structural stability of the external wall panel is insufficient is effectively solved, the heat preservation layer and the waterproof layer are reasonably arranged between the concrete inner acanthus and the concrete outer acanthus and on the outer side of the concrete outer acanthus, the heat preservation layer guarantees the indoor thermal environment, and the waterproof layer effectively prevents external moisture from permeating; the heat-insulating layer and the waterproof layer cooperate to play a role, the problem that heat-insulating and waterproof functions are difficult to achieve at the same time is solved, the decorative layer is completed on the outer side of the waterproof layer in a factory at a time, and therefore the fabricated heat-insulating, waterproof and decorative integrated concrete external wall panel is formed.

Description

Technical Field

[0001] The invention relates to the field of assembled wall panels, and in particular to an assembled thermal insulation, waterproof and decorative integrated concrete exterior wall panel. Background Art

[0002] The traditional method of waterproofing the exterior wall of assembled exterior wall panels is to make a waterproof layer on the outside of the assembled exterior wall panels after installation, and then make a thermal insulation layer and a decorative layer. There is a situation that the connection between the structural layers is not tight and stable enough. When subjected to external forces (such as wind force, earthquake force, etc.), the structural layers are easily separated and loosened, and it is often difficult to take into account the thermal insulation and waterproof functions well, resulting in poor thermal insulation effect or waterproof failure. Although some integrated exterior wall panel solutions are disclosed in the prior art, the distribution of their waterproof and decorative structures is unreasonable, resulting in poor waterproof performance and decorative effect. The current national standard requires that civil and industrial buildings using assembled exterior wall panels should have at least one waterproof layer, and it should be set on the water-facing surface of the assembled exterior wall panels to ensure the overall waterproofness of the assembled exterior wall panels. This also makes the on-site construction process more, the construction period is long, the wet work is more, and the cost is higher, which cannot reflect the advantages of assembled exterior wall panels. Summary of the invention

[0003] The purpose of the present invention is to provide an assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel in view of the defects of the prior art. Prefabricated integrated concrete exterior wall panels are used. The exterior wall panels are firmly connected to the concrete inner blade and the concrete outer blade by setting a steel truss, thereby enhancing the connection strength between the concrete inner blade and the concrete outer blade, effectively solving the problem of insufficient overall structural stability of the exterior wall panel. The thermal insulation layer and the waterproof layer are reasonably arranged between the concrete inner and outer blades and on the outside of the outer blade. The thermal insulation layer ensures the indoor thermal environment, and the waterproof layer is arranged on the outside of the wall panel to effectively prevent the infiltration of external moisture. The two work together to solve the problem that it is difficult to balance thermal insulation and waterproofing. In addition, the decorative layer is completed at one time in the factory on the outside of the waterproof layer, thereby forming an assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel.

[0004] The purpose of the present invention is to provide an assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel, which adopts the following scheme:

[0005] It includes a concrete inner blade, an insulation layer, a concrete outer blade, a waterproof layer and a finishing layer which are stacked in sequence. Fixed connectors are respectively installed on the upper and lower sides of the concrete inner blade. The concrete inner blade and the concrete outer blade are connected by a steel truss that penetrates the insulation layer.

[0006] Furthermore, connection holes are respectively provided on the upper and lower sides of the concrete inner blade, and fixed connecting parts are installed in the connection holes.

[0007] Furthermore, the top and bottom of the side of the concrete inner blade facing the building are provided with grooves, which are connected to the external concrete beam or steel beam through fixed connectors.

[0008] Furthermore, the thermal insulation layer is arranged between the concrete inner blade plate and the concrete outer blade plate, and both sides of the thermal insulation layer are covered with a cement-based interface agent or interface mortar.

[0009] Furthermore, a concrete outer blade is arranged outside the insulation layer to protect the insulation layer.

[0010] Furthermore, the waterproof layer and the finishing layer are sequentially bonded to the concrete outer blade.

[0011] Furthermore, the waterproof layer is formed by coating a polymer cement waterproof coating.

[0012] Furthermore, the finishing layer is a painted decorative surface or a plain concrete finishing surface.

[0013] Furthermore, the waterproof layer is arranged on the water-facing surface of the outer side of the concrete outer blade plate to make the integrated wall panel waterproof as a whole.

[0014] Furthermore, the steel bar trusses are respectively embedded in the concrete inner blade plate and the concrete outer blade plate, so that the concrete inner blade plate and the concrete outer blade plate are jointly subjected to force and load.

[0015] Compared with the prior art, the present invention has the following advantages and positive effects:

[0016] (1) In view of the current problems of low construction efficiency of exterior wall waterproofing and thermal insulation structures and a large amount of on-site wet work, prefabricated integrated concrete exterior wall panels are used. The exterior wall panels are equipped with steel trusses to enhance the connection strength between the concrete inner blade and the concrete outer blade, effectively solving the problem of insufficient overall structural stability of the exterior wall panels. The thermal insulation layer and the waterproof layer are reasonably arranged between the concrete inner and outer blades and on the outside of the outer blade. The thermal insulation layer ensures the indoor thermal environment, and the waterproof layer is arranged on the outside of the wall panel to effectively prevent external moisture from penetrating. The two work together to solve the problem of difficulty in balancing thermal insulation and waterproofing.

[0017] (2) The steel trusses enable the entire exterior wall panel to maintain a tight connection between the various structural layers when facing various external forces. The interface agent, mortar and reasonable connection structure between the structural layers ensure the bonding strength, avoid quality defects such as hollowing and falling off, improve the quality of the exterior wall panel as a whole, effectively avoid the separation and deformation of the structural layers, greatly improve the overall structural stability of the exterior wall panel, extend its service life, and ensure the long-term safety and reliability of the building exterior wall.

[0018] (3) The thermal insulation layer plays a good role in thermal insulation, reducing indoor heat loss and lowering building energy consumption; the waterproof layer reliably blocks rainwater, moisture and other external water from entering the wall, preventing the wall from getting damp and moldy. The two work together to optimize the thermal insulation and waterproof performance, and improve the building's comfort.

[0019] (4) The design of connection holes, grooves and fixed connectors enables the exterior wall panels to be connected to the concrete beams and steel beams more quickly and accurately by bolting or welding to the embedded parts during installation, thereby reducing installation time and labor costs, improving construction efficiency, and facilitating the rapid construction of the exterior walls of prefabricated buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0021] Figure 1 It is a schematic diagram of the planar structure of the assembled thermal insulation, waterproof and decorative integrated concrete exterior wall panel in Example 1 of the present invention.

[0022] Figure 2 It is a schematic cross-sectional view of the assembled thermal insulation, waterproof and decorative integrated concrete exterior wall panel in Example 1 of the present invention.

[0023] Among them, 1. Concrete inner blade; 2. Insulation layer; 3. Steel truss; 4. Concrete outer blade; 5. Waterproof layer; 6. Finishing layer; 7. Fixed connectors. DETAILED DESCRIPTION

[0024] In a typical embodiment of the present invention, Figure 1 and Figure 2 As shown, a prefabricated thermal insulation, waterproof and decorative integrated concrete exterior wall panel is provided.

[0025] The connections between the structural layers of traditional prefabricated exterior wall panels are loose, and they are prone to separation and loosening when encountering external forces such as wind and earthquake forces. The setting methods of the structural layers such as waterproofing and thermal insulation of the exterior wall are difficult to take into account the functions of the two, and poor thermal insulation or waterproofing failure often occur. The traditional practice is to sequentially construct the waterproof layer 5, thermal insulation layer 2 and decorative layer after the installation of the prefabricated exterior wall panels. There are many processes and many wet operations, which lead to long construction periods and high costs, and it is difficult to reflect the advantages of prefabricated exterior wall panels. Based on this, this embodiment provides an assembled thermal insulation, waterproof and decorative integrated concrete exterior wall panel, which connects the concrete inner blade 1 and the outer blade 4 by setting a steel truss 3 between the concrete inner blade 1 and the outer blade 4 and penetrating the thermal insulation layer 2 to form a stable connection structure, effectively enhancing the connection strength between the inner and outer blades, solving the problem of insufficient stability of the overall structure of the exterior wall panel, so that the exterior wall panel can better coordinate the force when facing external forces and maintain the integrity of the overall structure.

[0026] In addition, the thermal insulation layer 2 and the waterproof layer 5 are reasonably arranged at the corresponding positions of the inner and outer blades of the concrete. The thermal insulation layer 2 focuses on protecting the indoor thermal environment, and the waterproof layer 5 focuses on preventing the infiltration of external moisture. The two work together to give full play to their respective functions, solving the problem of balancing thermal insulation and waterproofing, and improving the overall performance of the exterior wall panels. In addition, prefabricated integrated concrete exterior wall panels are used to integrate and prefabricate multiple functional layers, which reduces on-site construction procedures, shortens construction period, reduces wet work volume, and thereby reduces construction costs, thereby better leveraging the advantages of prefabricated exterior wall panels.

[0027] like Figure 1 and Figure 2 As shown, the assembled thermal insulation, waterproof and decorative integrated concrete exterior wall panel includes a concrete inner blade 1, an insulation layer 2, a concrete outer blade 4, a waterproof layer 5 and a finishing layer 6 which are stacked in sequence.

[0028] The concrete inner blade 1 is the structural layer of the entire exterior wall panel structure close to the indoor side, which plays a supporting and bearing role. The concrete inner blade 1 is provided with fixed connectors 7 above and below, which are used to reliably connect the exterior wall panel with the concrete beam or steel beam and the embedded parts by bolting or welding, ensuring the position stability of the exterior wall panel after installation. It can effectively resist external forces and ensure that the exterior wall panel will not be easily displaced.

[0029] At the same time, the concrete inner blade plate 1 is connected to the concrete outer blade plate 4 through the steel truss 3, which helps the outer wall panel to form a stable structure as a whole.

[0030] The insulation layer 2 is located between the concrete inner blade 1 and the concrete outer blade 4, ensuring the indoor thermal comfort of the building, and can effectively block the transfer of heat, reduce the loss of indoor heat to the external environment, or block the external heat from entering the room in summer, achieving a good thermal insulation effect. The insulation layer 2 is closely adjacent to the concrete blades on both sides, and is penetrated by a steel truss, so that it is structurally integrated with the overall exterior wall panel. In buildings in cold areas, the insulation layer 2 can significantly reduce the indoor heating energy consumption in winter and maintain a suitable temperature environment indoors.

[0031] The concrete outer blade 4 is located outside the thermal insulation layer 2, and together with the concrete inner blade 1 constitutes the main force-bearing structural system of the exterior wall panel, protecting the internal thermal insulation layer 2 from direct impact and damage from the external environment.

[0032] The waterproof layer 5 covers the concrete outer blade 4 and is arranged on the water-facing surface of the wall panel to prevent external moisture from entering the interior of the exterior wall panel. It is made of suitable waterproof materials (such as polymer cement waterproof coatings, etc.), which can effectively prevent rainwater, snow water and water vapor in the air from penetrating into the wall, ensuring the dryness of the internal structure such as the insulation layer 2, and avoiding the influence of moisture on the insulation effect or structural damage. The existence of the waterproof layer 5 can ensure that the interior of the exterior wall panel is always in a dry state, extending the service life of the entire exterior wall panel.

[0033] The facing layer 6 is located on the outermost side and is the part showing the exterior appearance of the building. It can provide a beautiful decorative effect for the building and meet different architectural styles and design requirements. The facing layer 6 can be a colorful painted decorative surface or a plain concrete facing that highlights the texture of concrete. At the same time, it can also protect the lower waterproof layer 5 from erosion by external factors such as ultraviolet rays and wind and sand to a certain extent.

[0034] like Figure 2 As shown, the steel truss makes the force transmission between the concrete inner blade 1 and the concrete outer blade 4 more uniform and stable, thereby enhancing the stability of the entire exterior wall panel structure under complex stress conditions.

[0035] like Figure 2 As shown, the steel truss 3 further strengthens the connection between the concrete inner blade 1 and the concrete outer blade 4. As the skeleton inside the exterior wall panel, the inner and outer blades are tightly "bound" together to form a coordinated whole. When subjected to large external forces, the steel truss 3 can effectively limit the relative deformation between the inner and outer blades. When the exterior wall panel is subjected to uneven pressure or tension, the steel truss 3 can make the inner and outer blades share the load through its own deformation coordination, avoiding the damage of a blade first due to local stress concentration.

[0036] Compared with the traditional truss-free exterior wall panels, the exterior wall panels with the steel truss 3 structure have significantly improved load-bearing capacity and deformation capacity. In actual engineering tests, the ultimate load-bearing capacity of the exterior wall panels with the same specifications and materials has been significantly improved. When the deformation amount is the same, the load it bears is also greater, which provides a strong guarantee for the safety of the building's exterior wall.

[0037] Connection holes are provided on the concrete inner blade 1 and fixed connectors 7 are installed to connect the exterior wall panel to the main structure of the building. The position, size and number of the connection holes need to be adjusted according to the size and weight of the exterior wall panel and the structural form of the building. For large exterior wall panels, more connection holes with larger diameters can be used to ensure that the fixed connector 7 can provide sufficient anchoring force. The fixed connector 7 can be in various forms, such as expansion bolts or special anchors, and its material and performance must also meet the corresponding structural requirements.

[0038] The connection holes and the fixed connectors 7 can ensure that the exterior wall panels are firmly installed on the building, and prevent the exterior wall panels from falling off or shifting under the action of wind loads, earthquake loads, and deadweight. In actual engineering, the specifications and installation methods of the fixed connectors 7 can be determined by mechanical analysis and test verification of the connection nodes. In earthquake-prone areas, fixed connectors 7 with higher strength grades can also be used, and their preload can be increased to ensure the stability of the exterior wall panels during earthquakes.

[0039] The grooves arranged on the top and bottom of the concrete inner blade plate 1 facing one side of the building are connected to the concrete beam or steel beam through fixed connectors to effectively transfer the load and prevent the outer wall plate from being dislocated up and down.

[0040] In this embodiment, Figure 2 As shown, the thickness of the concrete inner blade plate 1 is between 50 mm and 100 mm, and the thickness of the concrete outer blade plate 4 is between 50 mm and 60 mm.

[0041] The fixed connector 7 is used to fix the assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel with the upper concrete beam (or steel beam) between the layers and the lower floor slab.

[0042] The surface of the insulation layer 2 is coated with a cement-based interface agent or interface mortar to improve the bonding performance between the insulation layer 2 and the adjacent structural layers (concrete inner blade 1 and concrete outer blade 4). Insulation materials usually have low surface energy and a loose structure, and have weak bonding with the concrete surface. The cement-based interface agent or interface mortar can penetrate into the pores on the surface of the insulation layer 2 to form a mechanical anchoring effect. At the same time, after hardening, it has good chemical compatibility with concrete, thereby improving the bonding strength.

[0043] In this embodiment, organic thermal insulation materials such as extruded boards, graphite extruded boards, and polyurethane are used as the thermal insulation layer 2. After a cement-based interface agent is applied on the surface, the bonding strength between the organic thermal insulation material and the inner and outer blades of the concrete is effectively improved, which can maintain the integrity of the exterior wall panel structure and ensure the durability of the thermal insulation effect.

[0044] The waterproof layer 5 is formed by coating with a polymer cement waterproof coating and bonded to the concrete outer blade 4. The coating thickness of the polymer cement waterproof coating is 1.5 mm. The waterproof coating has good waterproof performance and bonding performance. It can form a continuous and dense waterproof film on the surface of the concrete outer blade 4 to effectively prevent the penetration of external moisture. At the same time, its bonding force with the concrete outer blade 4 can ensure that it will not fall off under long-term environmental effects. In humid and rainy areas, after long-term rain scouring and soaking, the polymer cement waterproof coating can still maintain its waterproof performance and protect the internal structure of the exterior wall panel from moisture.

[0045] The finishing layer 6 is a coating or a plain concrete surface. The coating can provide a variety of colors and textures according to the requirements of the architectural design to meet the needs of different architectural styles. It can also play a certain protective role to prevent the waterproof layer 5 from being directly exposed to the sun and the atmosphere and being damaged by ultraviolet rays, oxidation and other factors. The plain concrete surface highlights the texture and beauty of the concrete material itself, and is widely used in some buildings that pursue simplicity and natural style. Its surface can also be properly treated, such as applying a transparent protective agent, to improve its durability and anti-pollution ability.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel, characterized in that: It includes a concrete inner blade, an insulation layer, a concrete outer blade, a waterproof layer and a finishing layer which are stacked in sequence. Fixed connectors are respectively installed on the upper and lower sides of the concrete inner blade. The concrete inner blade and the concrete outer blade are connected by a steel truss that penetrates the insulation layer.

2. The assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel according to claim 1, characterized in that: The upper and lower sides of the concrete inner blade are respectively provided with connection holes, and the fixed connection parts are installed in the connection holes.

3. The assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel according to claim 1 or 2, characterized in that: The top and bottom of the concrete inner blade plate on one side facing the building are provided with grooves, and are connected to the external concrete beam or steel beam through fixed connecting pieces.

4. The assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel according to claim 1, characterized in that: The thermal insulation layer is arranged between the concrete inner blade plate and the concrete outer blade plate, and the surfaces on both sides of the thermal insulation layer are covered with cement-based interface agent or interface mortar.

5. The assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel according to claim 4, characterized in that: A concrete outer blade is arranged outside the thermal insulation layer to protect the thermal insulation layer.

6. The assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel according to claim 1, characterized in that: The waterproof layer and the finishing layer are sequentially bonded to the concrete outer blade.

7. The assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel according to claim 6, characterized in that: The waterproof layer is formed by coating a polymer cement waterproof coating.

8. The assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel according to claim 6 or 7, characterized in that: The finishing layer is a painted decorative surface or a plain concrete finishing surface.

9. The assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel according to claim 1, characterized in that: The waterproof layer is arranged on the water-facing surface of the outer side of the concrete outer blade plate to make the integrated wall panel waterproof as a whole.

10. The assembled thermal insulation and waterproof decorative integrated concrete exterior wall panel according to claim 1, characterized in that: The steel bar trusses are respectively embedded in the concrete inner blade plate and the concrete outer blade plate, so that the concrete inner blade plate and the concrete outer blade plate are subjected to force and load together.

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