CN114753549A - A kind of light steel keel and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wall panel and method - Google Patents

Abstract

The invention discloses a light steel keel and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard and a manufacturing method thereof. The main body material foamed ceramic of the composite wallboard is a novel green building material, is light in weight, high in strength, efficient and energy-saving, and has a certain heat insulation effect. The composite wallboard with four strengthening characteristics is formed by organically matching a slotting and bar planting structure strengthening of a foamed ceramic plate, a frame structure strengthening of an additional light steel keel, a structure strengthening of a foamed concrete layer and a structure strengthening of an outer side decorative aluminum alloy plate. The composite wallboard has strong out-of-plane stress performance, the integral working performance of the light steel keel frame and foamed ceramic plate combined wall is good, the integrity is strong, the composite wallboard is green and environment-friendly, and a key technical support is provided for the engineering design of an outer protective structure system of an assembled light steel combined structure.

Description

A kind of light steel keel and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard and method

technical field

The invention relates to a light steel keel and a surface layer reinforced aluminum alloy plate facing a foamed ceramic composite wallboard and a method thereof, and belongs to the technical field of structural engineering.

Background technique

At present, with the acceleration of urbanization, a large number of construction projects lack sufficient understanding of green and environmental protection issues, which restricts the development of the construction industry, and the development of the construction industry must follow the principle of green and high-quality development. The prefabricated building is to improve the industrialization level of the building through assembly technology, prefabricate the components, and perform modular assembly. The prefabricated green building technology saves resources, reduces pollution, facilitates cost control and construction management, and can meet the requirements of construction quality while meeting the goal of sustainable development of green buildings.

my country's building energy consumption has risen sharply year by year, making building energy conservation an important area for the development of my country's construction industry. It accounts for the largest density, accounting for about 75%-80% of heat transfer and heat consumption through the envelope. The prefabricated enclosure system is an important part of the prefabricated building. The composite thermal insulation external wall panel using the new lightweight new green material can meet the thermal insulation and energy saving requirements of the outer wall and become an effective means to achieve building energy conservation. The traditional single-material wall is often difficult to meet the mechanical and high thermal insulation requirements at the same time, so the composite wallboard came into being. Composite wall refers to a composite wall formed by a combination of two or more materials. The composite wall applied to the outer protection system of the building structure usually has the characteristics of light weight and high strength, good thermal insulation performance, fireproof, waterproof, corrosion resistance, high production efficiency and convenient. Assembly and other superior performance. In addition to good thermal insulation performance, the composite wallboard outside the building structure also needs to withstand out-of-plane horizontal seismic action, wind load or out-of-plane impact load.

Since the middle of the 20th century, cold-formed thin-walled light steel structures have been widely used in developed countries. Cold-formed thin-walled steel is widely used. Compared with other types of steel structures, cold-formed thin-walled steel has the advantages of light weight, high degree of industrialization, high comprehensive economic benefits, and can be assembled. It is mostly used in prefabricated building enclosures. Insulation and decoration integrated outer envelope wall panel system. As the main supporting parts of the prefabricated steel structure system, the light steel keel wall panel undertakes various functions such as enclosure, thermal insulation and decoration.

Foamed ceramics are made of industrial solid waste or other mineral raw materials as the main raw materials, adding additives and foaming agents, and baking and foaming at high temperature. Lightweight plate-shaped ceramic products with thermal insulation properties. Foamed ceramics not only use industrial waste residue, which is in line with the national energy conservation and emission reduction policy, but also has the advantages of light weight, heat insulation, heat preservation, fire prevention, sound insulation, etc. How to scientifically and rationally use foamed ceramic panels for the integrated exterior wall panel system of prefabricated building envelopes The integrated lightweight wallboard is a key technical problem that the engineering community is very concerned about and needs to be solved urgently.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide light steel keel and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard and method, to solve how to scientifically and reasonably use the foamed ceramic plate for the integration of prefabricated building enclosures, thermal insulation and decoration The external protection structure wall panel system, how to safely and reliably combine the light steel keel with the foamed ceramic plate, and how to realize the integration of structural enclosure and decoration lightweight wall panels, etc.

To achieve the above object, the present invention adopts the following technical solutions:

Light steel keel and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard structure, the wallboard structure includes decorative aluminum alloy plate (1), foamed ceramic plate (2), steel mesh fiber cement mortar surface layer ( 3), steel mesh (4), light steel keel frame (5), foamed concrete layer (6) and calcium silicate board (7); The welded steel mesh (4) is placed in the groove (8), and the groove (8) is filled with the filling material (9); the foamed ceramic plate (2) is opened with holes on one side of the groove (8) and buried A wooden block (10) is placed; the foamed ceramic plate (2) is a composite steel mesh fiber cement mortar surface layer (3) on the grooved side; the self-tapping screw (11) is fixed on one side of the wall panel through the light steel keel frame (5), The arrangement position of the self-tapping screws (11) corresponds to the positions of the four sides of the foamed ceramic plate (2) and the embedded wooden blocks (10); the light steel keel frame (5) has round holes for pouring the foamed concrete layer (6) ; The calcium silicate plate (7) and the light steel keel frame (5) are fixed by means of self-tapping screws (11); the decorative aluminum alloy plate (1) is arranged on the non-slotted side of the foamed ceramic plate (2), and the composite On the outside of the steel mesh fiber cement mortar surface layer (3).

The decorative aluminum alloy plate (1) is applied to exterior wall decoration. The thickness of the decorative aluminum alloy plate (1) is 2mm-3mm, and the width and thickness are the same as those of the main wall panel. According to the specific exterior wall decoration requirements and design requirements, the style of the decorative aluminum alloy plate is reasonably adjusted and selected.

The foamed ceramic plate (2) is a new type of green building material used as the main part of the wallboard, and the foamed ceramic is calcined at high temperature with waste materials. Foamed ceramic has good thermal insulation function, its density is about 500kg/m ³ , it is a kind of light green building materials. The thickness of the foamed ceramic plate (2) is not less than 80 mm, a groove (8) is opened on one side of the foamed ceramic plate (8) for embedding the steel mesh (4), and a filling material (9) is poured into the groove (8). The foamed ceramic plate (2) has brittleness, and by opening a groove (8) in the foamed ceramic plate (2) and embedding a steel mesh (4), the deformation ability of the wall plate can be improved.

The steel mesh fiber cement mortar surface layer (3) is a surface layer with cement mortar as the base material and composite steel mesh. The steel mesh fiber cement mortar surface layer (3) is compounded on the grooved side of the foamed ceramic board, which can improve the deformation capacity and bearing capacity of the wallboard. The thickness of the steel mesh fiber cement mortar surface layer (3) is 20mm-30mm, the diameter of the steel wire is 0.8mm-1.5mm, and the width of the steel mesh grid is 50mm.

The steel mesh (4) is used to solve the problem of the brittleness of the foamed ceramic plate (2) itself, and can improve the bearing capacity of the wall plate. Considering the characteristics of the double-sided force of the wallboard, the reinforcement is arranged at the position of the neutral axis of the foamed ceramic board, and the buried depth of the reinforcement should not be less than 1/3 of the thickness of the foamed ceramic board (2) and should not be greater than 1/2 of the thickness of the board . The diameter of the steel bar is 4mm-6mm, the strength of the steel is not lower than Q235B, the spacing between the reinforcement bars is not less than 100mm, the steel bars are arranged vertically, and the steel mesh (4) is embedded in the groove (8) and filled with filler material (9).

The light steel keel frame (5) is welded by cold-formed thin-walled steel, is located on the slotted side of the foamed ceramic plate (2), and is fixed on the surface layer of steel mesh fiber cement mortar with self-tapping screws (11). (3) The inner side of the frame is the same size as the wall panel. The inner side of the light steel keel frame (5) is connected with the calcium silicate board (7) by means of self-tapping screws (11). The light steel keel frame (5) is made of C-shaped steel, the thickness of the section is not less than 3mm, the height of the section is 100mm-120mm, the width of the section is not less than 40mm, and the strength of the steel is not lower than Q235B. The round hole on the light steel keel frame (5) is used for preparing the foamed concrete, and the size of the round hole is set according to the construction requirements of pouring the foamed concrete.

The main material of the foamed concrete layer (6) is foamed concrete, which is used to fill the space formed by the light steel keel frame (5) and the calcium silicate board (7). The light steel keel frame (5) and the calcium silicate board (7) are used as a template for perfusion by means of opening a circular hole on the light steel keel frame (5). Foamed concrete is fully foamed mechanically through the foaming system of the foaming agent, and the foaming agent is evenly mixed with the cement slurry, and is constructed on site through the grouting system of the foaming machine. And other advantages, it can be used in the integrated wall panel of enclosure and thermal insulation.

The calcium silicate board (7) is a lightweight board used for the siding of the light steel keel composite wall and the siding of the light-weight concrete grouting wall, and has the advantages of moisture resistance, fire resistance, and strong workability. The calcium silicate plate (7) is fixed on the light steel keel frame (5) through self-tapping screws (11), and the thickness can be 10-12mm. The closed space formed by the calcium silicate board (7) and the light steel keel frame (5) provides a mold for the preparation of foamed concrete.

The groove (8) is a groove on one side of the foamed ceramic plate (2) for embedding the steel mesh (4). The depth of the groove (8) should not be less than 1/3 of the plate thickness and should not be greater than 1/2 of the plate thickness, and the width of the groove should be 10mm-15mm. The spacing between the grooves (8) corresponds to the spacing between the reinforcement bars in the reinforcement mesh (4). The depth of the groove (8) should not be less than the buried depth of the steel mesh (4), and the width of the groove should not be less than the diameter of the steel bar.

The filling material (9) is a material for filling the groove (8), and can be filled with materials such as high-strength grouting material or lightweight aggregate concrete. The damage of the foamed ceramic board (2) can effectively improve the overall mechanical performance of the foamed ceramic composite wallboard.

The wood block (10) is embedded in the grooved side of the foamed ceramic plate (2), and is used for fixing the light steel keel frame (5) by means of self-tapping screws (11). Since the foamed ceramic material is a brittle material, in order to prevent the damage of the self-tapping screw (11) to the foamed ceramic board (2), it is better to connect the materials of each part of the wall board. The wooden blocks (10) are cylindrical or rectangular, the height of the wooden blocks is 20 mm, and the distance between the wooden blocks is 200 mm. The wooden blocks are arranged on the edge of the foamed ceramic board (2), and the distance from the edge of the board is 15 mm-20 mm.

The self-tapping screw (11) is a quick-installed solid piece made of steel with a surface galvanized and passivated, and is mostly used for connection between thin plates. The self-tapping screws (11) are arranged at a distance of not more than 200mm, and are arranged at a distance of 20mm from the four sides of the plate, and are used to fix the light steel keel frame (5) and the calcium silicate plate (7). The arrangement position of the self-tapping screws (11) used for fixing the light steel keel frame (5) corresponds to the position of the pre-embedded wooden block (10) in the foamed ceramic plate (2).

The invention relates to a light steel keel and a surface layer reinforced aluminum alloy plate facing a foamed ceramic composite wallboard and a method thereof. The specific method is as follows:

Step 1: Prepare the foamed ceramic plate (2) in the factory and cut it according to the size requirements. According to the designed steel bar spacing and steel bar burial depth, a groove (8) is opened on one side of the foamed ceramic plate (2). Wood blocks (10) are embedded at corresponding positions on the four sides of the grooved side of the foamed ceramic plate (2).

Step 2: Process steel bars and light steel keels of corresponding sizes in the factory, and purchase self-tapping screws (11). The light steel keel is welded into a light steel keel frame (5), and a circular hole is opened at a corresponding position of the light steel keel frame (5) to facilitate the later pouring of foamed concrete.

The third step: placing the reinforcing bars in the transverse and longitudinal grooves (8) pre-cut on the foamed ceramic plate (2), and pouring filling material (9) into the grooves. After the filling material (9) is air-dried, the steel mesh fiber cement mortar surface layer (3) is compounded on the grooved side of the foamed ceramic board, and after the steel mesh fiber cement mortar surface layer (3) is air-dried, adhering and decorating on the outside of the wallboard Aluminum alloy plate (1).

Step 4: Install the light steel keel frame (5) on the inner side of the wall panel (the slotted side of the foamed ceramic plate), and fix it with self-tapping screws (11). 2) The positions of the pre-embedded wooden blocks (10) correspond.

Step 5: Use self-tapping screws (11) to fix the calcium silicate board (7) on the light steel keel frame (5). The foamed concrete is poured through the circular hole on the light steel keel frame (5) through the grouting system of the foaming machine to form a foamed concrete layer (6), which is maintained in an indoor airtight environment.

Compared with the prior art, the present invention relates to a light steel keel and a surface layer reinforced aluminum alloy plate facing a foamed ceramic composite wallboard and a method thereof, and has the following advantages:

(1) Materials such as foamed ceramic plates, calcium silicate plates, aluminum alloy plates, and cold-formed thin-walled steel are all lightweight building materials, which can meet the architectural requirements of integrated wall panels for structural enclosure and decoration. Each part of the material has stable performance and wide application, convenient material acquisition, low cost and strong applicability, and can be used in the peripheral wall panel system. As a new type of green building material, the main material of foamed ceramics is highly efficient and energy-saving, has a certain thermal insulation effect, can realize the integrated function of structural thermal insulation, and can meet my country's building energy-saving design standards.

(2) Strong integrity and good stress performance. The self-tapping screws are used to connect and fix the wall panel components, and the connection is reliable and can meet the structural requirements of the wall panel. The steel mesh fiber cement mortar surface layer and the groove filling material make up for the influence of the slotting on the foamed ceramic board; the embedded steel mesh improves the overall deformation ability of the foamed ceramic composite wallboard; through the composite steel mesh fiber cement mortar surface layer and The additional light steel keel frame significantly improves the overall mechanical performance of the composite wall panel.

(3) The design is simple and the function is complete. Light steel keel and surface reinforced aluminum alloy plate veneer foam ceramic composite wallboard takes into account various functions such as light weight, enclosure, decoration, heat preservation, fire prevention, etc., and can be used in fabricated light steel combined peripheral wall panel system , to meet the design requirements of building exterior walls. The application and operation of the self-tapping screw is simple and the arrangement is flexible; the pre-embedding of the wood block in the foamed ceramic plate can effectively reduce the risk of damage to the foamed ceramic plate by the self-tapping screw, and the wood block is easy to obtain and can be arranged flexibly.

(4) Green environmental protection and convenient construction. The foamed ceramic material conforms to the green building material manufacturing technology, and the prefabricated connecting piece involved in the present invention consumes less steel and is easy to obtain, which is conducive to realizing a green enclosure system and finally realizing the industrialization of building materials.

Description of drawings

Figure 1. Schematic diagram of light steel keel and surface layer reinforced aluminum alloy panel facing foamed ceramic composite wall panel

Figure 2. Dismantling diagram of light steel keel and surface reinforced aluminum alloy panel facing foamed ceramic composite wall panel

Figure 3 is a schematic diagram of the implementation of step 1.

Figure 4 is a schematic diagram of the implementation of step three.

Figure 5 is a schematic diagram of the implementation of step 4.

Detailed ways

The invention will be further described below with reference to specific embodiments.

As shown in Figure 1, the light steel keel and the surface layer reinforced aluminum alloy plate are adorned with a foamed ceramic composite wallboard structure, and the wallboard structure includes a decorative aluminum alloy plate (1), a steel mesh fiber cement mortar surface layer (3) , a foamed ceramic plate (2), a steel mesh (4), a light steel keel frame (5), a foamed concrete layer (6), and a calcium silicate board (7). A groove (8) is opened on the foamed ceramic plate (2), the welded steel mesh (4) is placed in the groove (8), and the groove (8) is filled with a filling material (9); the foamed ceramic The board (2) has grooves (8) on one side and four sides are opened to embed wood blocks (10); the foamed ceramic board (2) has a composite steel mesh fiber cement mortar surface layer on the grooved side (3); use self-tapping screws ( 11) Fix the light steel keel frame (5) on one side of the wall panel, and the positions of the self-tapping screws (11) correspond to the positions of the four sides of the foamed ceramic plate (2) and the embedded wooden blocks (10); the light steel keel frame (5) A round hole is opened on the top for pouring the foamed concrete layer (6); the calcium silicate board (7) and the light steel keel frame (5) are fixed by means of self-tapping screws (11). as shown in picture 2.

The invention relates to a light steel keel and a surface layer reinforced aluminum alloy plate facing a foamed ceramic composite wallboard and a method thereof. The specific method is as follows:

Step 1: Prepare the foamed ceramic plate (2) in the factory and cut it according to the size requirements. According to the designed steel bar spacing and steel bar burial depth, a groove (8) is opened on one side of the foamed ceramic plate (2). Wood blocks (10) are embedded at corresponding positions on the four sides of the grooved side of the foamed ceramic plate (2). As shown in Figure 3.

Step 2: Process steel bars and light steel keels of corresponding sizes in the factory, and purchase self-tapping screws (11). The light steel keel is welded into a light steel keel frame (5), and a round hole is opened at a corresponding position of the light steel keel frame (5), so as to facilitate the pouring of foamed concrete in the later stage.

The third step: placing the reinforcing bars in the transverse and longitudinal grooves (8) pre-cut on the foamed ceramic plate (2), and pouring filling material (9) into the grooves. After the filling material (9) is air-dried, the steel mesh fiber cement mortar surface layer (3) is compounded on the grooved side of the foamed ceramic board, and after the steel mesh fiber cement mortar surface layer (3) is air-dried, adhering and decorating on the outside of the wallboard Aluminum alloy plate (1). As shown in Figure 4.

Step 4: Install the light steel keel frame (5) on the inner side of the wall panel (the slotted side of the foamed ceramic plate), and fix it with self-tapping screws (11). 2) The positions of the pre-embedded wooden blocks (10) correspond. As shown in Figure 5.

Step 5: Use self-tapping screws (11) to fix the calcium silicate board (7) on the light steel keel frame (5). The foamed concrete is poured through the circular hole on the light steel keel frame (5) through the grouting system of the foaming machine to form a foamed concrete layer (6), which is maintained in an indoor airtight environment.

Determine the span and width of the foamed ceramic board according to the relevant design specifications of the wallboard composite structure and the needs of engineering applications, adjust the thickness of the decorative aluminum alloy board, the thickness of the foamed ceramic board, the thickness of the steel mesh fiber cement mortar surface and the thickness of the silicon The thickness of the calcium oxide board.

Determine the type, size and thickness of the light steel keel section according to the shear capacity, bending capacity and seismic bearing capacity requirements of the wall and the design requirements of the building structure load code for the load on the wall panel; adjust the buried depth of the steel bar and the depth of the slot .

According to the design requirements of the exterior wall of the building, the material of the decorative aluminum alloy plate is adjusted to determine the style and type of the decorative aluminum alloy plate.

According to the size of the building load and the determination of the material and size of the wall panel, adjust the arrangement spacing and quantity of the self-tapping screws.

The light steel keel and the surface layer reinforced aluminum alloy plate facing the foamed ceramic composite wallboard of the present invention take into account the advantages of beautiful decoration, thermal insulation, simple operation, flexible arrangement, light material, green environmental protection, safety and reliability, etc. , It is suitable for the external protective structure wall panel system integrating the thermal insulation and decoration of the prefabricated building.

The above is a typical embodiment of the present invention, and the implementation of the present invention is not limited thereto.

Claims (10)

1. Light gauge steel and surface course reinforce type aluminum alloy plate veneer foamed ceramic composite wall panel, its characterized in that: the decorative aluminum alloy plate comprises a decorative aluminum alloy plate (1), a foamed ceramic plate (2), a steel wire mesh fiber cement mortar surface layer (3), a reinforcing mesh (4), a light steel keel frame (5), a foamed concrete layer (6) and a calcium silicate plate (7); a groove (8) is formed in the foamed ceramic plate (2), the welded reinforcing mesh (4) is placed in the groove (8), and the groove (8) is filled with a filling material (9); the four sides of one side of the groove (8) of the foamed ceramic plate (2) are provided with holes and embedded with wood blocks (10); the composite steel wire mesh fiber cement mortar surface layer (3) is arranged on the slotted side of the foamed ceramic plate (2); the self-tapping screws (11) are fixed on one side of the wallboard through the light steel keel frame (5), and the arrangement positions of the self-tapping screws (11) correspond to the positions of the wood blocks (10) embedded in the open pores on the four sides of the foamed ceramic plate (2); round holes are formed in the light steel keel frame (5) and used for pouring a foamed concrete layer (6); the calcium silicate board (7) and the light steel keel frame (5) are fixed in a self-tapping screw (11) mode; the decorative aluminum alloy plate (1) is arranged on the side, which is not provided with the groove, of the foamed ceramic plate (2) and is compounded outside the steel wire mesh fiber cement mortar surface layer (3).

2. The light steel keel and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard as claimed in claim 1, wherein: the decorative aluminum alloy plate (1) is applied to the decoration of an outer wall; the thickness of the decorative aluminum alloy plate (1) is 2mm-3mm, and the width and the thickness are consistent with those of the main body wallboard.

3. The light steel joist and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard of claim 1, wherein: the foamed ceramic plate (2) is used as the main body part of the wallboard and is formed by calcining waste materials at high temperature; the foamed ceramic has the functions of heat preservation and heat insulation, and the density is 500kg/m³(ii) a The thickness of the foamed ceramic plate (2) is not less than 80mm, a groove (8) is formed in one side of the foamed ceramic plate and used for embedding the reinforcing mesh (4), and filling materials (9) are poured into the groove (8); the steel bar net (4) is embedded by making grooves (8) on the foaming ceramic plate (2).

4. The light steel joist and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard of claim 1, wherein: the steel wire mesh fiber cement mortar surface layer (3) is a surface layer which takes cement mortar as a base material and is compounded with a steel wire mesh; the steel wire mesh fiber cement mortar surface layer (3) is compounded on the groove side of the foamed ceramic plate.

5. The light steel joist and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard of claim 1, wherein: the reinforcing steel bars of the reinforcing steel bar net (4) are arranged at the neutral axis position of the foamed ceramic plate, and the embedding depth of the reinforcing steel bars is not less than 1/3 of the plate thickness of the foamed ceramic plate (2) and not more than 1/2 of the plate thickness.

6. The light steel joist and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard of claim 1, wherein: the light steel keel frame (5) is formed by welding cold-formed thin-wall section steel, is positioned on one side of the groove of the foamed ceramic plate (2), and is fixed on the inner side of the steel wire mesh fiber cement mortar surface layer (3) by using self-tapping screws (11), and the outside dimension of the frame is consistent with that of the wallboard; the light steel keel frame (5) adopts C-shaped steel; the light steel keel frame (5) is provided with round holes for preparing the foamed concrete, and the size of the round holes is set according to the construction requirement of pouring the foamed concrete.

7. The light steel joist and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard of claim 1, wherein: the main body material of the foamed concrete layer (6) is foamed concrete and is used for filling a space formed by the light steel keel frame (5) and the calcium silicate plate (7).

8. The light steel joist and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard of claim 1, wherein: the calcium silicate board (7) is a light board used for a wallboard of a light steel keel composite wall body and a wallboard of a light concrete grouting wall; the calcium silicate board (7) is fixed on the light steel keel frame (5) through self-tapping screws (11).

9. The light steel joist and surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard of claim 1, wherein: the groove (8) is a groove which is used for embedding the reinforcing mesh (4) and is arranged on one side of the foaming ceramic plate (2);

the filling material (9) is filled by adopting materials such as high-strength grouting material or light aggregate concrete;

the wood block (10) is embedded in the groove side of the foamed ceramic plate (2) and used for fixing the light steel keel frame (5) through self-tapping screws (11).

10. The method of using the light steel keel and the surface layer reinforced aluminum alloy plate facing foamed ceramic composite wallboard of any one of claims 1-9, wherein: the method comprises the following specific steps:

the first step is as follows: preparing a foamed ceramic plate (2) in a factory, and cutting according to the size requirement; according to the designed steel bar spacing and the steel bar burial depth, a groove (8) is formed in one side of the foamed ceramic plate (2); embedding wood blocks (10) at corresponding positions of four sides of the grooved side of the foamed ceramic plate (2);

the second step is that: blanking and processing steel bars and light steel keels with corresponding sizes in a factory, and purchasing self-tapping screws (11); welding the light steel keel into a light steel keel frame (5), and forming round holes in corresponding positions of the light steel keel frame (5) so as to facilitate later-stage pouring of foamed concrete;

The third step: placing the reinforcing steel bars in transverse and longitudinal grooves (8) cut in advance in the foamed ceramic plate (2), and pouring a filling material (9) into the grooves; after the filling material (9) is air-dried, compounding a steel wire mesh fiber cement mortar surface layer (3) at the side of the groove of the foamed ceramic plate, and after the steel wire mesh fiber cement mortar surface layer (3) is air-dried, adhering a decorative aluminum alloy plate (1) outside the wallboard;

the fourth step: installing a light steel keel frame (5) on the inner side of a wallboard, and fixing by adopting self-tapping screws (11), wherein the arrangement positions of the self-tapping screws (11) correspond to the positions of pre-embedded wood blocks (10) of a foamed ceramic plate (2);

the fifth step: fixing the calcium silicate board (7) on the light steel keel frame (5) by adopting self-tapping screws (11);

the foamed concrete is poured into the circular holes in the light steel keel frame (5) through a grouting system of a foaming machine to form a foamed concrete layer (6), and the foamed concrete layer is maintained in an indoor closed environment.

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