A cast-in-place concrete wall with steel wire frame composite insulation board and its construction method

Abstract

The present invention relates to a cast-in-place concrete wall of a steel wire grid composite insulation board and a construction method thereof, wherein the insulation board in the wall is composed of a plurality of square unit boards, and each unit board is symmetrically provided with L-shaped positioning boards on the front and back sides, and the two ends of the L-shaped positioning board respectively protrude from the two side edges of the unit board and are on the side edges, and the protruding sections of the two opposite L-shaped positioning boards form a clamping groove, and the corner portion of the L-shaped positioning board is arranged at the center of the unit board, and a connecting rib is passed through the center of the unit board, and the middle portion of the connecting rib passes through the center of the unit board and the corner portion of the L-shaped positioning board, and the two ends of the connecting rib are respectively bent and clamped on the steel wire mesh sheets on both sides. The insulation board of this case adopts a unit splicing method, and a grid-type support structure is formed on both sides of the insulation board, so that the wall structure is more stable and has higher strength, and the factory prefabrication and construction are very simple and convenient, thereby reducing the construction difficulty and improving the construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving and environment-friendly new-style buildings, in particular to a cast-in-place concrete wall body of a steel wire grid composite insulation board and a construction method thereof. Background Art

[0002] With the implementation and application of building energy-saving standards and wall fire protection and insulation design specifications, a variety of new wall insulation materials and insulation walls have appeared on the market. In order to shorten the construction period and reduce the difficulty of construction, the prefabricated building model has gradually emerged.

[0003] The cast-in-place concrete insulation wall includes an inner concrete wall and an outer insulation board. For the outer insulation board, a steel wire mesh composite insulation board is currently commonly used. The composite insulation board is composed of a polystyrene board main body and a steel wire mesh of the outer layer of the polystyrene board as an integrated structure. In order to enhance the adhesion between the insulation board and the wall, an obliquely inserted belly wire is connected to the insulation board. The outer end of the obliquely inserted belly wire is connected to the steel wire mesh of the insulation board, and the inner end of the obliquely inserted belly wire is extended into the wall. When the wall is cast and formed, the obliquely inserted belly wire is formed integrally with the wall.

[0004] The existing cast-in-place concrete insulation walls and construction methods have the following problems: 1. The steel wire mesh composite insulation board generally needs to be prefabricated in the factory. Before prefabrication, it needs to be customized according to the wall size and layout. Obviously, the construction period and design difficulty are greatly increased; although the oblique inserted belly wire is used to strengthen the installation of the composite insulation board, the oblique inserted belly wire is often connected by on-site welding or bundling, which is inconvenient to construct. In addition, the oblique inserted belly wire connects the steel wire mesh of the outer layer of the insulation board. The inner end of the oblique inserted belly wire is prone to deformation due to the thin support. At the same time, the outer layer of the composite insulation board also needs to be provided with additional layers such as cement mortar layer, leveling layer, outer decorative panel, etc., which increases the additional gravity of the outer layer, and the supporting force of the outer layer is easily applied to the polystyrene board body, resulting in an unstable overall structure of the insulation layer.

[0005] Based on the above problems, this case developed a cast-in-place concrete wall with a steel wire grid composite insulation board and its construction method. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a cast-in-place concrete wall of a steel wire grid composite insulation board and a construction method thereof. The composite insulation board of the wall is assembled and formed in the form of splicing units, and is assembled and connected on site by means of double-sided steel wire mesh sheets and intermediate connecting ribs. A grid-type supporting structure is formed on both sides of the insulation board body, making the wall structure more stable and stronger. Factory prefabrication and construction are very simple and convenient, thereby reducing construction difficulty and improving construction efficiency.

[0007] In order to solve the above technical problems, the cast-in-place concrete wall of the wire mesh composite insulation board of the present invention comprises an inner layer of concrete wall and an outer layer of wire mesh composite board, and its structural feature is that the wire mesh composite board comprises steel mesh sheets on both sides and an insulation board body in the middle; the insulation board body in the middle is composed of a plurality of square unit panels, and each unit panel is symmetrically provided with L-shaped positioning plates on the front and back sides, and the two ends of the L-shaped positioning plate respectively protrude from the two side edges of the unit panel and are on the side edges, and the protruding sections of the two opposite L-shaped positioning plates form a clamping groove, and the corner part of the L-shaped positioning plate is arranged at the center position of the unit panel, and a connecting rib is passed through the center of the unit panel, and the middle part of the connecting rib passes through the center of the unit panel and the corner part of the L-shaped positioning plate, and the two ends of the connecting rib are respectively bent and clamped on the steel mesh sheets on both sides.

[0008] With the above structure, the insulation board adopts a unit board assembly structure, and the unit boards at the corners can be cut on site, avoiding tedious design and layout work, making prefabrication more convenient and construction more flexible. The steel mesh panels on both sides are connected into an integrated structure using connecting ribs to form a more stable supporting steel mesh frame, avoiding gravity loads on the insulation board during the pouring process and after forming.

[0009] Preferably, the inner steel mesh and the inner extension section of each connecting rib are cast as an integral structure with the inner concrete wall, and the outer steel mesh and the outer extension section of the connecting rib are cast synchronously with the inner concrete wall to form a concrete protective layer. The inner steel mesh frame can be cast integrally with the wall, which increases the stability of the insulation board attachment, making the structure of the entire wall more stable and stronger. The outer steel mesh is used for synchronous casting to form a concrete protective layer, which can better protect the inner insulation board. At the same time, the construction of the structure is also more convenient and efficient.

[0010] A mortar anti-cracking layer is arranged outside the concrete protective layer, and an alkali-resistant mesh cloth is pressed into the mortar anti-cracking layer; a finishing layer is arranged outside the mortar anti-cracking layer. After the main wall is formed, an anti-cracking layer and a finishing layer can be arranged on the outer layer as needed. The anti-cracking layer and the mesh cloth can ensure the stability of the outer wall surface and avoid cracking.

[0011] For the connection between the connecting ribs and the steel mesh, the two ends of the connecting ribs are clamped on the transverse steel wires of the steel mesh, and the clamping parts are reinforced and fixed by welding or tying steel wire ropes. Although the connecting ribs and the steel mesh will eventually be integrally formed by pouring concrete, in order to ensure the stability of the grid structure during the pouring process and avoid displacement, the clamping parts are reinforced and fixed again.

[0012] Regarding the arrangement of the L-shaped plate on the unit plate, an L-shaped groove adapted to the L-shaped positioning plate is provided on the front and back panels of the unit plate, and the two ends of the L-shaped groove respectively penetrate the two side edges of the unit plate, and positioning grooves adapted to the extended section of the L-shaped positioning plate on the adjacent unit plate are provided on the other two side edges of the unit plate. The L-shaped groove serves as a limit groove of the L-shaped positioning plate to prevent the L-shaped plate from being displaced and affecting the stability of the overall assembly structure, and the positioning groove is correspondingly plugged in with the extended end of the L-shaped positioning plate, further ensuring the stability of the structure.

[0013] In order to further enhance the stability of the assembled structure, a main positioning hole is provided on the extended section of the L-shaped positioning plate, and an auxiliary positioning hole is correspondingly provided on the positioning groove. After assembly, positioning pins are installed in the main positioning hole and the auxiliary positioning hole. The positioning pin is used to limit the end of the L-shaped positioning plate, and it can adopt an ordinary pin body. In this case, the positioning pin is preferably an elastic bayonet with a barb at the end. By utilizing the elastic force and the barb structure, the pin body can be firmly clamped in the auxiliary positioning hole, further ensuring the stability of the assembled structure.

[0014] For the installation structure of the connecting rib, a unit plate center hole is provided in the center of the unit plate for the connecting rib to pass through, and a positioning plate through hole is provided at the corner of the L-shaped positioning plate for the connecting rib to pass through. The connecting rib passes through the positioning plate through hole on the outer L-shaped positioning plate, the unit plate center hole, and the positioning plate through hole on the inner L-shaped positioning plate in sequence. The middle of the connecting rib is a threaded section and locking nuts are screwed on both sides of the unit plate. The two locking nuts are tightened and pressed against the L-shaped positioning plates on both sides. The connecting rib is locked and installed on the L-shaped positioning plates on both sides by two nuts. On the one hand, it ensures the installation firmness of the L-shaped positioning plate. On the other hand, with the help of screwing, the extension length of the connecting rib on both sides can be appropriately adjusted, and the on-site construction is more flexible and convenient.

[0015] In order to solve the above technical problems, the construction method of the steel wire grid composite insulation board cast-in-place concrete wall of the present invention comprises the following steps:

[0016] Step 1) Prefabricate unit panels, L-shaped positioning panels, and cut connecting ribs. According to the wall size, the length and width of the unit panels are limited to between 80CM and 150CM. The size of the L-shaped positioning panels is set according to the length and width of the unit panels, and the length of the protruding section of the L-shaped positioning panels is not less than 15CM.

[0017] Step 2) Assemble the wire mesh composite panels on the construction site. First, install the L-shaped positioning plate and connecting ribs on the unit panels. Adjacent unit panels are respectively installed through corresponding card slots to ensure that there is no gap in the splicing parts of the unit panels adjacent to the left and right and adjacent to the top and bottom. Bend the ends of the connecting ribs on site and strengthen the fixation by tying steel wire ropes or welding to ensure that the ends of the connecting ribs are firmly connected to the steel mesh sheets on both sides.

[0018] Step 3) Support the inner and outer wall formworks. Install the corner formworks first. The upper and lower parts of the formworks should be well positioned. Additional support should be provided when necessary. No holes or gaps should be left at any corners to ensure that there is no leakage at the joints.

[0019] Step 4) Concrete pouring. The concrete pumping and pouring process should maintain its continuity to reduce stratification. During construction, the vibrating rod must not touch the insulation board and connectors. Use a rubber hammer or other tools to assist in knocking on the outside of the formwork. When pouring concrete, the concrete pouring speed on both sides of the insulation board should be balanced, and the height difference of the concrete slurry surface on both sides should be observed in time and strictly controlled within 40CM.

[0020] Step 5) The concrete on both sides of the grid plate should be immediately coated with curing agent after the formwork is removed or covered and moisturized within 12 hours; for concrete mixed with silicate cement, ordinary silicate cement or slag silicate cement, the curing time shall not be less than 7 days, and for concrete mixed with retarding admixtures, the curing time shall not be less than 14 days; during the curing period, watering should be used to keep the concrete in a moist state or plastic film should be used to cover the concrete and keep condensed water in the plastic film.

[0021] Step 6) After the curing is completed, the main wall is formed and the anti-cracking layer or outer finishing is constructed as needed.

[0022] When the main positioning hole and the auxiliary positioning hole are set and the positioning pins are installed, only the positioning groove can be opened when the unit plate is prefabricated in step 1), and the auxiliary positioning hole on the positioning groove can be opened during the assembly process. The main positioning hole is opened when the L-shaped positioning plate is prefabricated. Since the structure of the front and back sides of the unit plate is symmetrical, the auxiliary positioning holes on the front and back sides of the unit plate can be formed at one time by opening a through hole. However, since it is difficult to ensure that the pre-opened main positioning hole and the auxiliary positioning hole can accurately correspond during assembly, it is preferred to open the auxiliary positioning hole on site. When the auxiliary positioning hole is opened on site, the auxiliary positioning hole is a countersunk hole and there is no need to open it as a through hole.

[0023] In summary, the wall structure of the present invention is stable and has higher strength, and is simple and convenient to prefabricate and construct in a factory, which greatly reduces the construction difficulty and improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0025] Figure 1 It is a structural schematic diagram of the wall in the present invention;

[0026] Figure 2 For along Figure 1 Schematic diagram of the structure of the middle A part;

[0027] Figure 3 For along Figure 1 Schematic diagram of the structure of the middle B part;

[0028] Figure 4 It is a schematic diagram of the structure of the unit board assembly in the present invention;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of a single unit board in the present invention;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the L-shaped positioning plate in the present invention;

[0031] Figure 7 It is a schematic diagram of a three-dimensional structure in which a single unit plate, an L-shaped positioning plate and connecting ribs are assembled into one body in the present invention. DETAILED DESCRIPTION

[0032] Referring to the accompanying drawings, the cast-in-place concrete wall of the steel wire grid composite insulation board of the present invention includes an inner layer of concrete wall 1 and an outer layer of steel wire grid composite board, and is characterized in that the steel wire grid composite board includes steel wire mesh sheets 2 on both sides and an insulation board body 3 in the middle; the insulation board body 3 in the middle is composed of a plurality of square unit panels 31, and each unit panel 31 is symmetrically provided with L-shaped positioning plates 4 on the front and back sides, and the two ends of the L-shaped positioning plate 4 protrude out of the two side edges of the unit panel 31 respectively and on the side edges, and the protruding sections of the two opposite L-shaped positioning plates 4 form a clamping groove, and the corner part of the L-shaped positioning plate 4 is arranged at the center position of the unit panel 31, and a connecting rib 5 is passed through the center of the unit panel 31, and the middle part of the connecting rib 5 passes through the center of the unit panel 31 and the corner part of the L-shaped positioning plate 4, and the two ends of the connecting rib 5 are respectively bent and clamped on the steel wire mesh sheets 2 on both sides.

[0033] Referring to the attached drawings, the inner steel mesh 2 and the inwardly extending sections of the connecting bars 5 are cast as an integral structure with the inner concrete wall 1, and the outer steel mesh 2 and the outwardly extending sections of the connecting bars are cast synchronously with the inner concrete wall 1 to form a concrete protective layer 6.

[0034] The insulation board adopts a unit board 31 assembly structure, and the unit boards at the corners can be cut on site, avoiding tedious design and layout work, making prefabrication more convenient and construction more flexible; the wire mesh on both sides are connected into an integrated structure using connecting ribs to form a more stable supporting wire mesh frame, avoiding gravity load on the insulation board during the casting process and after molding. The inner wire mesh frame 2 can be cast as one piece with the wall, which increases the stability of the insulation board attachment and makes the structure of the entire wall more stable and stronger. The outer wire mesh 2 is used for synchronous casting to form a concrete protective layer, which can better protect the inner insulation board. At the same time, the construction of the structure is also more convenient and efficient.

[0035] According to the needs, a mortar anti-cracking layer 7 is arranged outside the concrete protective layer 6, and an alkali-resistant mesh cloth 71 is pressed into the mortar anti-cracking layer 7; a finishing layer 8 is arranged outside the mortar anti-cracking layer 7. The anti-cracking layer cooperates with the mesh cloth to ensure the stability of the exterior wall surface and avoid cracking. When the mortar anti-cracking layer is constructed, a layer of mortar is first applied, and then the mesh cloth is laid, and then a layer of mortar is applied on the mesh cloth.

[0036] Referring to the attached drawings, for the connection structure between the connecting rib 5 and the steel mesh 2, both ends of the connecting rib 5 are clamped on the transverse steel wires of the steel mesh frame 2, and the clamping parts are reinforced and fixed by welding or tying steel wire ropes. Although the connecting rib 5 and the steel mesh 2 will eventually be integrally formed by pouring concrete, in order to ensure the stability of the grid structure during the pouring process and avoid displacement, the clamping parts are reinforced and fixed again.

[0037] Referring to the accompanying drawings, regarding the arrangement of the L-shaped plate on the unit plate, an L-shaped groove 310 adapted to the L-shaped positioning plate 4 is provided on the front and back panels of the unit plate 31, and the two ends of the L-shaped groove 310 respectively penetrate the two side edges of the unit plate 31, and a positioning groove 311 adapted to the extended section of the L-shaped positioning plate on the adjacent unit plate 31 is provided on the other two side edges of the unit plate 31. The L-shaped groove 310 serves as a limit groove for the L-shaped positioning plate 4 to prevent the L-shaped positioning plate 4 from being displaced and affecting the stability of the overall assembly structure, and the positioning groove 311 is correspondingly plugged in with the extended end of the L-shaped positioning plate 4, further ensuring the stability of the structure.

[0038] Referring to the accompanying drawings, in order to further ensure the stability of the assembled structure, a main positioning hole 40 is provided on the extended section of the L-shaped positioning plate 4, and an auxiliary positioning hole 312 is correspondingly provided on the positioning groove 311. After assembly, a positioning pin 9 is installed in the main positioning hole 40 and the auxiliary positioning hole 312. The positioning pin is used to limit the end of the L-shaped positioning plate, and it can adopt an ordinary pin body. In this case, the positioning pin 9 is preferably an elastic snap-in pin with a barb at the end. By using the elastic force and the barb structure, the pin body can be firmly clamped in the auxiliary positioning hole 312, further ensuring the stability of the assembled structure.

[0039] Referring to the attached drawings, for the installation structure of the connecting rib 5, a unit plate center hole 312 is provided at the center of the unit plate 31 for the connecting rib 5 to pass through, and a positioning plate through hole 41 is provided at the corner of the L-shaped positioning plate 4 for the connecting rib 5 to pass through. The connecting rib 5 passes through the positioning plate through hole 41 on the outer L-shaped positioning plate 4, the unit plate center hole 312, and the positioning plate through hole 41 on the inner L-shaped positioning plate 4 in sequence. The middle part of the connecting rib 5 is a threaded section and locking nuts 10 are screwed on both sides of the unit plate 31, respectively. The two locking nuts 10 are tightened and pressed against the L-shaped positioning plates 4 on both sides. The connecting rib 5 is locked and installed on the L-shaped positioning plates 4 on both sides by two nuts. On the one hand, the installation firmness of the L-shaped positioning plates 4 is ensured. On the other hand, by means of screwing, the extension length of the connecting rib 5 on both sides can be appropriately adjusted, and the on-site construction is more flexible and convenient.

[0040] The construction method of the cast-in-place concrete wall of the steel wire grid composite insulation board of the present invention comprises the following steps:

[0041] Step 1) Prefabricate the unit plate 31, the L-shaped positioning plate 4, and cut the connecting ribs 5. According to the wall size, the length and width of the unit plate 31 are limited to between 80CM and 150CM; the size of the L-shaped positioning plate 4 is set according to the length and width of the unit plate 31, and ensure that the length of the protruding section of the L-shaped positioning plate 4 is not less than 15CM;

[0042] Step 2) Assemble the wire mesh composite panel on the construction site. First, install the L-shaped positioning plate 4 and the connecting rib 5 on the unit plate 31. Adjacent unit plates 31 are respectively clamped in the corresponding clamping grooves to ensure that there is no gap in the splicing parts of the unit plates 31 adjacent to the left and right and adjacent to the top and bottom; bend the ends of the connecting rib 5 on site, and strengthen the fixation by tying steel wire ropes or welding to ensure that the ends of the connecting rib 5 are firmly connected to the steel mesh sheets 2 on both sides;

[0043] Step 3) Support the inner wall formwork 11 and the outer wall formwork 12. Install the corner formwork first. The upper and lower parts of the formwork should be well positioned. Additional support should be provided when necessary. No holes or gaps should be left at any corners to ensure that there is no leakage of mortar at the joints.

[0044] Step 4) Concrete pouring. The concrete pumping and pouring process should maintain its continuity to reduce stratification. During construction, the vibrating rod must not touch the insulation board and connectors. Use a rubber hammer or other tools to assist in knocking on the outside of the formwork. When pouring concrete, the concrete pouring speed on both sides of the insulation board should be balanced, and the height difference of the concrete slurry surface on both sides should be observed in time and strictly controlled within 40CM.

[0045] Step 5) The concrete on both sides of the grid plate should be immediately coated with curing agent after the formwork is removed or covered and moisturized within 12 hours; for concrete mixed with silicate cement, ordinary silicate cement or slag silicate cement, the curing time shall not be less than 7 days, and for concrete mixed with retarding admixtures, the curing time shall not be less than 14 days; during the curing period, watering should be used to keep the concrete in a moist state or plastic film should be used to cover the concrete and keep condensed water in the plastic film.

[0046] Step 6) After the curing is completed, the main wall is formed and the anti-cracking layer or outer finishing is constructed as needed.

[0047] When the main positioning hole 40 and the auxiliary positioning hole 312 are used and the positioning pin 9 is installed, in step 1, when the unit plate 31 is prefabricated, only the positioning groove 311 can be opened, and when the L-shaped positioning plate 4 is prefabricated, the main positioning hole 40 can be opened, and the auxiliary positioning hole 312 on the positioning groove 311 can be opened during the assembly process. Since the structure of the front and back sides of the unit plate 31 is symmetrical, when the unit plate 31 is prefabricated, the auxiliary positioning holes 312 on the front and back sides of the unit plate can be formed at one time by opening a through hole. However, since it is difficult to ensure that the pre-opened main positioning hole 40 and the auxiliary positioning hole 312 can accurately correspond during assembly, it is preferred to open the auxiliary positioning hole 312 on site. When the auxiliary positioning hole 312 is opened on site, the auxiliary positioning hole 312 is a countersunk hole and there is no need to open it as a through hole.

[0048] In summary, the present invention is not limited to the above specific embodiments. Those skilled in the art may make several changes or modifications without departing from the technical solution of the present invention, and the above changes or modifications all fall within the protection scope of the present invention.

Claims

1. A method for constructing a cast-in-place concrete wall with a steel wire grid composite insulation board, comprising an inner concrete wall (1) and an outer steel wire grid composite board, characterized in that: The wire mesh composite panel comprises wire mesh sheets (2) on both sides and a heat-insulating panel body (3) in the middle; the heat-insulating panel body (3) in the middle is composed of a plurality of square unit panels (31) assembled together, and each unit panel (31) is symmetrically provided with L-shaped positioning panels (4) on the front and back sides, and the two ends of the L-shaped positioning panels (4) respectively protrude from the two side edges of the unit panel (31) and are arranged at the side edges, and the protruding sections of the two opposite L-shaped positioning panels (4) form a mounting groove, and the corner portion of the L-shaped positioning panel (4) is arranged at the center of the unit panel (31). A connecting rib (5) is installed at the center of the element plate (31), the middle of the connecting rib (5) passes through the center of the unit plate (31) and the corner of the L-shaped positioning plate (4), the two ends of the connecting rib (5) are respectively bent and clamped on the steel mesh sheets (2) on both sides, the steel mesh sheets (2) on the inner side and the inner extension sections of each connecting rib (5) are cast with the inner concrete wall (1) to form an integrated structure, and the steel mesh sheets (2) on the outer side and the outer extension sections of the connecting rib are cast synchronously with the inner concrete wall (1) to form a concrete protective layer (6); The steps include: Step 1) Prefabricate the unit plate (31), the L-shaped positioning plate (4), and cut the connecting ribs (5). According to the size of the wall, the length and width of the unit plate (31) are limited to between 80CM and 150CM. The size of the L-shaped positioning plate (4) is set according to the length and width of the unit plate (31), and the length of the protruding section of the L-shaped positioning plate (4) is ensured to be not less than 15CM. Step 2) assembling the wire mesh composite panel at the construction site, first installing the L-shaped positioning plate (4) and the connecting rib (5) on the unit panel (31), and correspondingly clamping the adjacent unit panels (31) through the clamping grooves to ensure that there is no gap at the joints of the unit panels (31) adjacent to the left and right and adjacent to the top and bottom; bending the ends of the connecting rib (5) on site, and strengthening the fixation by tying steel wire ropes or welding to ensure that the ends of the connecting rib (5) are firmly connected to the steel mesh sheets (2) on both sides; Step 3) Support the inner wall formwork (11) and the outer wall formwork (12). Install the corner formwork first. The upper and lower parts of the formwork should be well positioned and supported. No holes or gaps should be left at any corners to ensure that there is no leakage of mortar at the joints. Step 4) Concrete pouring. The concrete pumping and pouring process should maintain its continuity to reduce stratification; During construction, the vibrating rod must not touch the insulation board and connectors. Use a rubber hammer or other tools to assist in knocking on the outside of the formwork. When pouring concrete, the pouring speed of concrete on both sides of the insulation board should be balanced, and the height difference of the concrete slurry surface on both sides should be observed in time and strictly controlled within 40CM. Step 5) The concrete on both sides of the grid plate should be immediately coated with curing agent after the formwork is removed or covered and moisturized within 12 hours; for concrete mixed with ordinary Portland cement or slag Portland cement, the curing time shall not be less than 7 days, and for concrete mixed with retarding admixtures, the curing time shall not be less than 14 days; during the curing period, watering should be used to keep the concrete moist or plastic film should be used to cover the concrete and keep condensed water in the plastic film; Step 6) After the curing is completed, the main wall is formed and the anti-cracking layer construction or outer finishing construction is carried out as needed.

2. The construction method of cast-in-place concrete wall of steel wire grid composite insulation board according to claim 1 is characterized in that: A mortar anti-cracking layer (7) is arranged outside the concrete protective layer (6), and an alkali-resistant mesh cloth (71) is pressed into the mortar anti-cracking layer (7); and a finishing layer (8) is arranged outside the mortar anti-cracking layer (7).

3. The construction method of cast-in-place concrete wall of steel wire grid composite insulation board according to claim 1 is characterized in that: The two ends of the connecting rib (5) are clamped on the transverse steel wires of the steel wire mesh (2), and the clamping parts are reinforced and fixed by welding or tying steel wire ropes.

4. The construction method of cast-in-place concrete wall of steel wire grid composite insulation board as claimed in claim 3 is characterized in that: The front and back panels of the unit plate (31) are provided with L-shaped grooves (310) adapted to the L-shaped positioning plate (4), the two ends of the L-shaped groove (310) respectively pass through the two side edges of the unit plate (31), and the other two side edges of the unit plate (31) are provided with positioning grooves (311) adapted to the extended sections of the L-shaped positioning plates on the adjacent unit plates (31).

5. The construction method of cast-in-place concrete wall of steel wire grid composite insulation board according to claim 4 is characterized in that: A main positioning hole (40) is provided on the extended section of the L-shaped positioning plate (4), and a corresponding auxiliary positioning hole (312) is provided on the positioning groove (311). After assembly, positioning pins (9) are installed in the main positioning hole (40) and the auxiliary positioning hole (312).

6. The construction method of cast-in-place concrete wall of steel wire grid composite insulation board according to claim 5, characterized in that: The positioning pin (9) is an elastic latch with a barb at the end.

7. The construction method of cast-in-place concrete wall of steel wire grid composite insulation board according to claim 6 is characterized in that: The center of the unit plate (31) is provided with a unit plate center hole (313) for the connecting rib (5) to pass through, and the corner of the L-shaped positioning plate (4) is provided with a positioning plate through hole (41) for the connecting rib (5) to pass through. The connecting rib (5) passes through the positioning plate through hole (41) on the outer L-shaped positioning plate (4), the unit plate center hole (313), and the positioning plate through hole (41) on the inner L-shaped positioning plate (4) in sequence. The middle part of the connecting rib (5) is a threaded section and locking nuts (10) are respectively screwed on both sides of the unit plate (31). The two locking nuts (10) are respectively tightened and pressed against the L-shaped positioning plates (4) on both sides.

8. The construction method of the cast-in-place concrete wall of the steel wire grid composite insulation board according to claim 7, characterized in that: When the unit plate (31) is used, only the positioning groove (311) may be opened when the unit plate (31) is prefabricated in step 1), the auxiliary positioning hole (312) on the positioning groove (311) may be opened during the assembly process, and the main positioning hole (40) is opened when the L-shaped positioning plate (4) is prefabricated.

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