Reinforced ALC strip board and preparation method thereof as well as peripheral retaining wall structure and short wall structure

Abstract

The present invention discloses a reinforced ALC strip board and a preparation method thereof, an outer wall structure and a short wall structure, and relates to the field of construction, with the purpose of improving the corrosion resistance of the ALC strip board, thereby improving its durability and applicable scenarios. The technical solution adopted by the present invention is: a reinforced ALC strip board, including a plate body and structural ribs in the plate body, the structural ribs including a metal tube, the tube wall of the metal tube is provided with a through hole, and the interior of the metal tube is a tube core formed by pouring a cementitious material; the part of the cementitious material passing through the through hole forms a protective layer on the outer tube wall of the metal tube, or the part of the cementitious material passing through the through hole is combined with autoclaved aerated concrete to form a protective layer. Compared with the existing ALC strip board preparation method, the reinforced ALC strip board preparation method adds a step of pouring cementitious material into the metal tube. The reinforced ALC strip board has a wider range of applications, can be used as a template for the outer wall structure, and realize the thermal insulation and structural integration of the outer wall, and can also be connected to the main wall as a door stack or window stack.

Description

Technical Field

[0001] The invention relates to the field of construction, in particular to a reinforced ALC strip board and a production method thereof, and application of the reinforced ALC strip board in an outer protective wall structure and a short wall structure. Background Art

[0002] ALC is the abbreviation of Autoclaved Lightweight Concrete, which is a kind of high-performance autoclaved aerated concrete (ALC). ALC strips are porous concrete panels made of fly ash (or silica sand), cement, lime and other raw materials, cured by high-pressure steam, and contain treated steel reinforcement. ALC boards can be used as wall materials and roof panels, and are a kind of building material with excellent performance. ALC strips have the advantages of light weight and high strength, excellent thermal insulation, excellent fire resistance, good frost resistance, excellent water penetration resistance, good water softening resistance, and good sound insulation performance.

[0003] ALC strips have certain defects as external protective walls, which are mainly reflected in the corrosion resistance and durability of steel bars. Ordinary concrete has low permeability and high alkalinity (pH value greater than 12.5), so the electrochemical corrosion rate of the internal steel bar surface is low, and the passivation effect of the high pH value on the steel bar surface slows down the corrosion rate. Aerated concrete is a porous material with much lower strength than ordinary concrete and dozens of times higher permeability than ordinary concrete. During the production process of aerated concrete, SiO 2 It forms hydrated calcium silicate with CaO under high temperature, which reduces the pH value. At the same time, during use, due to the large permeability, a large amount of carbon dioxide and water infiltrate, causing the material alkalinity to decrease more. Therefore, under the same conditions, the electrochemical corrosion of steel bars in aerated concrete is much more serious than that in ordinary concrete. Practice has shown that if the steel bars in aerated concrete are not treated with anti-corrosion, they will be piled in the open air for 1 to 2 weeks after production, and expansion cracks will occur due to steel bar corrosion, which will seriously affect the use.

[0004] The existing ALC strips are usually 600mm wide and 2400-3000mm high. For a large number of building types, there are short walls in some areas of the floor plan. For example, there is usually a short wall protruding 100mm at the door pier. For the short wall protruding at the door pier, the traditional brickwork inner enclosure wall is generally used in the following ways: First, a concrete structural column is directly cast at the door pier and connected to the brickwork with steel bars. Second, the short wall at the door pier is made of brickwork, and tie steel bars are set in the mortar joints of the brickwork at intervals of 500-600mm.

[0005] If ALC strips are used as inner enclosure walls, since the ALC strips are a board with a total height of 2400-3000mm and no mortar joints, the door stack cannot be connected to the main wall through tie bars. If a specific small-sized ALC strip is used as the door stack, for example, an ALC strip with a width of 100mm is used as the door stack, the following problems will arise: on the one hand, such a small-sized ALC strip is cut with a too small cross-section, and the ALC strip is easy to break and crack during construction; on the other hand, the ALC strip is too slender and has no connection with the main wall, so the door stack is easy to become unstable and damaged, and the connection between the door stack and the main wall is also easy to crack, which will have a great impact on the construction and future use. Summary of the invention

[0006] The present invention firstly provides a reinforced ALC strip board, aiming to improve the corrosion resistance of the ALC strip board and further improve its durability.

[0007] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a reinforced ALC strip board includes a board body and at least one layer of structural ribs embedded in the board body, the board body is made of autoclaved aerated concrete, the structural ribs include a metal tube, the tube wall of the metal tube is provided with a through hole, and the interior of the metal tube is a tube core formed by pouring a cementitious material; the part of the cementitious material passing through the through hole forms a continuous or discontinuous protective layer on the outer tube wall of the metal tube, or the part of the cementitious material passing through the through hole is combined with the autoclaved aerated concrete and forms a continuous or discontinuous protective layer on the outer tube wall of the metal tube.

[0008] Specifically: the cementitious material is one of cement slurry, mud mortar, fine stone concrete, acrylic acid, epoxy resin, and polyurethane.

[0009] Furthermore, the structural reinforcement also includes connecting reinforcement, and the metal pipes are connected by the connecting reinforcement. For example, the metal pipe is a steel pipe, and the connecting reinforcement is a steel mesh, and the steel mesh is welded or hooked on the steel pipe.

[0010] Specifically: the metal tube is a round tube or a square tube.

[0011] Specifically: the structural reinforcement is two layers and parallel to each other, and the two layers of structural reinforcement are arranged inside the plate body near the bottom surface and the top surface of the plate body.

[0012] The beneficial effects of the reinforced ALC strips of the present invention are as follows: the structural ribs include metal tubes, the interior of the metal tubes is poured with cementitious material, the cementitious material condenses to form a tube core, the metal tube and the tube core form an integral structure, and the bearing capacity of the plate body is improved. The portion of the cementitious material passing through the through hole directly forms a protective layer, or is combined with autoclaved aerated concrete to form a protective layer, the protective layer is bonded to the outside of the metal tube and forms a protective effect on the metal tube, and the corrosion resistance of the metal tube is improved; at the same time, the portion of the cementitious material passing through the through hole strengthens the bonding between the metal tube and the autoclaved aerated concrete (plate body), so that the bonding between the metal tube and the plate body is tighter. The corrosion resistance of the reinforced ALC strips of the present invention is improved, and the structural ribs are tightly bonded to the plate body, so that the strength and durability of the ALC strips are improved.

[0013] The present invention also provides a method for preparing a reinforced ALC strip board, which is used to prepare any of the above-mentioned reinforced ALC strip boards, including: preparing raw materials for the board body, preparing and pre-treating the structural reinforcement, batching, pouring, and implanting the structural reinforcement; after implanting the structural reinforcement, pouring cementitious material into the metal tube, and then pre-curing at high temperature, and then cutting, grouping, steaming, and unloading.

[0014] The beneficial effect of the method for preparing the reinforced ALC strips of the present invention is that the method for preparing the reinforced ALC strips can be realized, and the method for preparing the reinforced ALC strips has less modification than the existing method for preparing the ALC strips and is easy to realize.

[0015] Since the present invention improves the strength and corrosion resistance of the ALC strips themselves, the application scope of the reinforced ALC strips is expanded.

[0016] The present invention provides an external retaining wall structure. The external retaining wall structure comprises a formwork and any of the above-mentioned reinforced ALC strips, a spacer is arranged between the reinforced ALC strip and the formwork to form a wall cast-in-place area, a first frame is arranged on the side of the reinforced ALC strip facing away from the wall cast-in-place area, a second frame and a support member are arranged on the side of the formwork facing away from the wall cast-in-place area, a tension bolt is arranged between the first frame and the second frame, the tension bolt penetrates through the outer side of the wall cast-in-place area and a sleeve is arranged; a connecting member is arranged between the reinforced ALC strip and the wall cast-in-place area, and a disk is arranged on the connecting member on the side of the reinforced ALC strip facing away from the wall cast-in-place area. After the cast-in-place area of ​​the wall is cast-in-place, the first frame, the second frame, the support member, and the tension bolt are removed, and the reinforced ALC strip and the cast-in-place wall together form an external wall integrated with insulation and structure.

[0017] The present invention also provides another external retaining wall structure. The external retaining wall structure includes a formwork and any of the above-mentioned reinforced ALC strips, a spacer is arranged between the reinforced ALC strip and the formwork to form a wall cast-in-place area, a second frame and a support member are arranged on the side of the formwork facing away from the wall cast-in-place area, a connecting member is arranged between the reinforced ALC strip and the wall cast-in-place area, a disk is arranged on the side of the reinforced ALC strip facing away from the wall cast-in-place area, and one end of the connecting member located in the wall cast-in-place area is connected to the formwork or the second frame by tension through a steel wire. After the cast-in-place area of ​​the wall is cast-in-place, the first frame, the second frame, the support member, and the tension bolts are removed, and the reinforced ALC strip and the cast-in-place wall together form an external wall integrated with insulation and structure.

[0018] The above two types of external wall structures have achieved the integration of thermal insulation and structure of the external wall. The reinforced ALC strip also serves as a formwork on one side. The reinforced ALC strip can be used as an external formwork or an internal formwork, which simplifies the existing double-sided formwork construction steps.

[0019] The present invention also provides a short wall structure. The short wall structure comprises a main wall and any one of the above-mentioned reinforced ALC strips, wherein the reinforced ALC strips are fixedly connected to the main wall to form a short wall, and the short wall is a door or window stack. For example, the two side surfaces of the reinforced ALC strips are connected to the main wall by steel sheets and nails. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the plate body and metal tube of the reinforced ALC strip plate of the present invention.

[0021] Figure 2 Schematic diagram of the structural ribs of the reinforced ALC strip board of the present invention.

[0022] Figure 3 It is a schematic diagram of a double-layer structural rib of the reinforced ALC strip board of the present invention.

[0023] Figure 4 and Figure 5 It is a schematic diagram of two schemes of setting single-layer structural reinforcement for the reinforced ALC strip board of the present invention.

[0024] Figure 6 It is a structural schematic diagram of an embodiment of the peripheral retaining wall structure of the present invention.

[0025] Figure 7 It is a structural schematic diagram of another embodiment of the peripheral retaining wall structure of the present invention.

[0026] Figure 8 It is a schematic diagram of an embodiment of the short wall structure of the present invention.

[0027] Figure numerals: reinforced ALC strip board 1, plate body 11, metal tube 12, tube core 13, protective layer 14, connecting rib 15, formwork 21, pad 22, wall cast area 23, first frame 24, second frame 25, support member 26, tension bolt 27, sleeve 28, connector 29, main wall 3, steel sheet 41, nail 42. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] The first subject of the present invention is a reinforced ALC strip. Figures 1 to 5 The reinforced ALC strip board includes a board body 11 and at least one layer of structural ribs embedded in the board body 11. The board body 11 is made of autoclaved aerated concrete. The structural ribs play a role in increasing strength and are generally made of steel. When the board body 11 is thin, the structural ribs can be provided with only one layer, such as Figure 1 , Figure 4 and Figure 5 When the plate 11 is thicker, the structural ribs may be two layers or even more layers, for example Figure 3 The illustrated embodiment is provided with two layers of structural ribs. When two layers of structural ribs are provided in the plate body 11, the two layers of structural ribs are parallel to each other and arranged in the plate body 11 near the bottom surface and the top surface of the plate body according to the force applied to the plate body 11. When there are three or more layers of structural ribs, the layers of structural ribs are preferably parallel to each other.

[0030] The structural reinforcement includes a metal tube 12, which is generally a steel tube. The cross section of the metal tube 12 can be a polygon such as a triangle, a quadrilateral, a pentagon or a circle. Generally, a circular tube or a square tube is selected. The tube wall of the metal tube 12 is provided with through holes, which are generally arranged continuously and densely to cover the entire tube wall of the metal tube 12 as much as possible. The interior of the metal tube 12 is a tube core 13 formed by pouring a cementitious material, and the outer wall of the metal tube 12 is a protective layer 14 or autoclaved aerated concrete of the plate body 11. The cementitious material is a fluid substance that can condense into a solid state and is also required to be able to adapt to the high temperature in the production stage of the reinforced ALC strip board. The cementitious material can be one of cement slurry, cement mortar, fine stone concrete, acrylic acid, epoxy resin, and polyurethane. The part of the cementitious material passing through the through hole forms a continuous or discontinuous protective layer 14 on the outer tube wall of the metal tube 12, or the part of the cementitious material passing through the through hole is combined with the autoclaved aerated concrete to form a continuous or discontinuous protective layer 14 on the outer tube wall of the metal tube 12. The protective layer 14 protects the outer wall of the metal pipe 12 and improves the corrosion resistance of the metal pipe 12. The protective layer 14 covers the entire outer wall of the metal pipe 12 or a part of the outer wall, preferably the entire outer wall of the metal pipe 12.

[0031] If the size of the plate body 11 is small, the structural ribs can be directly formed by the metal tubes 12, and the metal tubes 12 are one or more. If the size of the plate body 11 is large, the structural ribs also include connecting ribs 15, and there are multiple metal tubes 12, and the metal tubes 12 are connected by the connecting ribs 15 to form a structural rib of an integral structure. Each metal tube 12 can form a perfusion channel individually, or the metal tubes 12 can be connected to each other to form a grid-like perfusion channel. The connecting ribs 15 and the metal tubes 12 are mechanically connected or welded, and the materials of the two are preferably the same. For example, the connecting ribs 15 and the metal tubes 12 are both made of steel and welded. For example, in Figure 3 and Figure 5 In the embodiment shown, the connecting rib 15 is welded to the metal tube 12; Figure 4 In the illustrated embodiment, the connecting rib 15 is formed into a hook and is tied and connected or overlapped with the metal pipe 12 .

[0032] The existing ALC strip board includes a board body and structural ribs embedded in the board body, and the structural ribs are solid steel bars or steel meshes. The present invention replaces all or part of the structural ribs with metal tubes 12, and pours cementitious material into the metal tubes 12. After the cementitious material solidifies, it forms a tube core 13. The metal tube 12 and the tube core 13 form an integral structure, which improves the bearing capacity of the board body 11. Since the tube wall of the metal tube 12 is provided with a through hole, the cementitious material passing through the through hole directly forms a protective layer 14 on the outer wall of the metal tube 12, or the cementitious material passing through the through hole is combined with autoclaved aerated concrete to form a protective layer 14. The protective layer 14 protects the outer wall of the metal tube 12, thereby improving the anti-corrosion ability of the metal tube 12. The part of the cementitious material passing through the through hole of the metal tube 12 also strengthens the bonding between the metal tube 12 and the autoclaved aerated concrete, so that the bonding between the metal tube 12 and the board body 11 is tighter. The reinforced ALC slats have a higher cost than the existing ALC slats, but their strength and durability are significantly improved.

[0033] The second subject of the present invention is a method for preparing a reinforced ALC slat, which is used to prepare the above-mentioned reinforced ALC slat. The method for preparing a reinforced ALC slat includes: preparing raw materials for the plate body 11, preparing and pre-treating the structural ribs, batching, pouring, and implanting the structural ribs; after implanting the structural ribs, pouring cementitious material into the metal tube 12, and then pre-curing at high temperature, and then cutting, grouping, steaming, and unloading. Compared with the traditional method for preparing ALC slats, the method for preparing a reinforced ALC slat adds the step of pouring cementitious material into the metal tube 12. The method for preparing a reinforced ALC slat is described in detail below.

[0034] (1) Preparation of raw materials for the plate body 11. To produce autoclaved aerated concrete, firstly, the siliceous material, such as sand, is ground into powder by dry grinding, or by wet grinding with water to make slurry, or by mixing with lime etc., depending on the raw material requirements and process characteristics.

[0035] (2) Preparation and pretreatment of structural reinforcement. The metal tube 12 is pretreated as a structural reinforcement, or the metal tube 12 and the connecting reinforcement 15 are processed into a structural reinforcement of an integral structure, and the structural reinforcement is pretreated. When the structural reinforcement is made of steel, the pretreatment includes rust removal, straightening, cutting, welding, coating preparation, coating impregnation and drying.

[0036] (3) Batching, pouring, and implanting structural reinforcement. Batching is to measure the various raw materials that have been prepared and stored for use, adjust the temperature and concentration, and measure and prepare a small amount of doped materials on site, and then feed them into the mixing equipment in sequence according to the process requirements. Pouring is to pour the measured and mixed slurry into the mold through a mixer.

[0037] (4) The cementitious material is poured into the metal pipe 12 and pre-cured at high temperature.

[0038] (5) Cutting. After the plate is un-bored, it is transported to the flip hanger station; the flip hanger is transported to the cutting unit for demolding; the embryo is cut.

[0039] (6) Grouping, steaming, and unloading.

[0040] (7) Sorting and packaging. After the embryos are taken out of the autoclave, they are hoisted, inspected, packaged, and transported to a fixed storage place. At the same time, the bottom plate is cleaned and oiled to ensure that the products shipped to the market are qualified products and the next production process can proceed normally.

[0041] Since the present invention improves the strength and corrosion resistance of the ALC strips themselves, the application scope of the reinforced ALC strips is expanded. The third and fourth subjects of the present invention are two specific applications of the reinforced ALC strips.

[0042] The third subject of the present invention is an external protective wall structure. Two embodiments of the external protective wall structure are given below. Figure 6 and Figure 7 shown.

[0043] like Figure 6As shown, the outer wall structure of the present invention includes a formwork 21 and the above-mentioned reinforced ALC strip 1. A pad 22 is arranged between the reinforced ALC strip 1 and the formwork 21 to form a wall cast-in-place area 23. The wall cast-in-place area 23 is tied with steel bars and forms a cast-in-place wall after pouring concrete. There are multiple pads 22, which play a role in supporting the reinforced ALC strip 1 and the formwork 21, directly determine the thickness of the cast-in-place area 23 of the cast-in-place wall, and the pads 22 eventually become a part of the cast-in-place wall. The side of the reinforced ALC strip 1 close to the formwork 21 is a casting formwork. A first frame 24 is arranged on the side of the reinforced ALC strip 1 facing away from the wall cast-in-place area 23. The first frame 24 plays a role in supporting the reinforced ALC strip 1, for example, the first frame 24 is a strip frame. A second frame 25 and a support member 26 are arranged on the side of the formwork 21 facing away from the wall cast-in-place area 23. The second frame 25 plays a role in supporting the formwork 21, and the support member 26 plays a role in supporting and fixing the second frame 25, for example, the support member 26 is a diagonal brace. Tension bolts 27 are arranged between the first frame 24 and the second frame 25, and there are multiple groups of tension bolts 27. The tension bolts 27 need to be removed eventually, so sleeves 28 are arranged on the outside of the tension bolts 27 that penetrate the wall cast-in-place area 23, and the sleeves 28 can be PVC pipes. In order to firmly connect the reinforced ALC strip 1 with the cast-in-place wall, a connector 29 is arranged between the reinforced ALC strip 1 and the wall cast-in-place area 23, and the connector 29 is a metal part, such as steel. The connector 29 is not removed after the concrete is poured in the wall cast-in-place area 23. A disc is arranged on the side of the reinforced ALC strip 1 facing away from the wall cast-in-place area 23, and the contact area between the connector 29 and the reinforced ALC strip is enlarged by the disc. One end of the connector 29 located in the wall cast-in-place area 23 can be connected to the structural reinforcement of the cast-in-place wall.

[0044] like Figure 7As shown, the outer wall structure of the present invention includes a template 21 and the above-mentioned reinforced ALC strip 1. A spacer 22 is arranged between the reinforced ALC strip 1 and the template 21 to form a wall cast-in-place area 23. The wall cast-in-place area 23 is tied with steel bars and forms a cast-in-place wall after pouring concrete. A second frame 25 and a support member 26 are arranged on the side of the template 21 facing away from the wall cast-in-place area 23. For example, the support member 26 is a diagonal brace. A connector 29 is arranged between the reinforced ALC strip 1 and the wall cast-in-place area 23. The connector 29 is a metal member, for example, steel. A disc is arranged on the side of the reinforced ALC strip 1 facing away from the wall cast-in-place area 23 to expand the contact area between the connector 29 and the reinforced ALC strip. One end of the connector 29 located in the wall cast-in-place area 23 is connected to the template 21 or the second frame 25 by a steel wire. The connector 29 has two functions: one is to firmly connect the reinforced ALC strip 1 to the cast-in-place wall, and the other is to form a pulling effect between the reinforced ALC strip 1 and the second frame 25 or the formwork 21. The steel rope is preferably connected to the second frame 25. In order to facilitate the tightening of the steel rope, screw holes and bolts can be set in the second frame 25, and the bolts are connected to the steel rope. The tightening of the steel rope is achieved by adjusting the position of the bolts in the screw holes. After the cast-in-place wall is cast, the second frame 25 and the formwork 21 are removed, and the exposed steel wires can be cut off. Figure 7 The illustrated embodiment will Figure 6 The tension bolts 27 in the illustrated embodiment are replaced with steel ropes, thereby avoiding the need for disassembly of the tension bolts 27 .

[0045] The fourth subject of the present invention is a short wall structure. Figure 8 As shown, the short wall structure includes a main wall 3 and the above-mentioned reinforced ALC strip 1, and the reinforced ALC strip 1 is fixedly connected to the main wall 3 to form a short wall, and the short wall is a door pier or a window pier. For example, the two side surfaces of the reinforced ALC strip 1 are connected to the main wall 3 by steel sheets 41 + nails 42, for example, the steel sheet 41 is a 2mm thick galvanized steel sheet.

Claims

1. A reinforced ALC strip board, comprising a board body (11) and at least one layer of structural ribs embedded in the board body (11), wherein the board body (11) is made of autoclaved aerated concrete, and is characterized in that: The structural reinforcement comprises a metal tube (12) and a connecting rib (15); the metal tubes (12) are multiple, and the metal tubes (12) are connected by the connecting rib (15) to form a structural reinforcement of an integral structure; a through hole is arranged on the tube wall of the metal tube (12); the interior of the metal tube (12) is a tube core (13) formed by pouring a cementitious material; the part of the cementitious material passing through the through hole forms a continuous or discontinuous protective layer (14) on the outer tube wall of the metal tube (12), or the part of the cementitious material passing through the through hole is combined with autoclaved aerated concrete and forms a continuous or discontinuous protective layer (14) on the outer tube wall of the metal tube (12).

2. The reinforced ALC strip according to claim 1, characterized in that: The cementitious material is one of cement paste, cement mortar, fine stone concrete, acrylic acid, epoxy resin, and polyurethane.

3. The reinforced ALC strip according to claim 1, characterized in that: The metal pipe (12) is a steel pipe, and the connecting rib (15) is a steel mesh. The steel mesh is welded or hooked on the steel pipe.

4. The reinforced ALC strip according to any one of claims 1 to 3, characterized in that: The metal tube (12) is a circular tube or a square tube.

5. The reinforced ALC strip according to any one of claims 1 to 3, characterized in that: The structural reinforcements are in two layers and are parallel to each other. The two layers of structural reinforcements are arranged in the plate body (11) at positions close to the bottom surface and the top surface of the plate body.

6. A method for preparing a reinforced ALC strip, characterized in that: The method for preparing the reinforced ALC strip board (1) as claimed in any one of claims 1 to 5 comprises: preparing raw materials for the board body (11), preparing and pre-treating the structural reinforcement, batching, pouring, and implanting the structural reinforcement; after implanting the structural reinforcement, pouring cementitious material into the metal tube (12), and then pre-curing at high temperature, and then cutting, grouping, steaming, and unloading.

7. External retaining wall structure, characterized by: The invention comprises a formwork (21) and a reinforced ALC strip (1) as claimed in any one of claims 1 to 5, wherein a spacer (22) is arranged between the reinforced ALC strip (1) and the formwork (21) to form a wall cast-in-place area (23), a first frame (24) is arranged on the side of the reinforced ALC strip (1) facing away from the wall cast-in-place area (23), a second frame (25) and a support member (26) are arranged on the side of the formwork (21) facing away from the wall cast-in-place area (23), a tension bolt (27) is arranged between the first frame (24) and the second frame (25), a sleeve (28) is arranged on the outer side of the tension bolt (27) passing through the wall cast-in-place area (23); a connecting member (29) is arranged between the reinforced ALC strip (1) and the wall cast-in-place area (23), and a disc is arranged on the side of the reinforced ALC strip (1) facing away from the wall cast-in-place area (23).

8. External retaining wall structure, characterized by: It comprises a formwork (21) and the reinforced ALC strip (1) as described in any one of claims 1 to 5 above, a spacer (22) is arranged between the reinforced ALC strip (1) and the formwork (21) to form a wall cast-in-place area (23), a second frame (25) and a support member (26) are arranged on the side of the formwork (21) facing away from the wall cast-in-place area (23), a connecting member (29) is arranged between the reinforced ALC strip (1) and the wall cast-in-place area (23), a disc is arranged on the side of the reinforced ALC strip (1) facing away from the wall cast-in-place area (23), and one end of the connecting member (29) located in the wall cast-in-place area (23) is connected to the formwork (21) or the second frame (25) by tension through a steel wire.

9. Short wall structure, characterized by: It comprises a main wall (3) and the reinforced ALC strip board (1) described in any one of claims 1 to 5, wherein the reinforced ALC strip board (1) is fixedly connected to the main wall (3) to form a short wall, which is a door pier or a window pier.

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