Wallboard with built-in insulation board and building

Abstract

The utility model discloses a wallboard with a built-in insulation board and a building, the wallboard is used for constructing a building wall body, and the wallboard comprises an inner sheet board with a built-in inner rib cage and mainly used for bearing; the outer hinge plate and the inner hinge plate are of an integrated pouring structure; the heat preservation plate serves as an inner core for pouring the outer page plate and is arranged in the outer page plate, so that the outer page plate is mainly used for heat preservation; concrete used by the inner page plate and the outer page plate is autoclaved aerated concrete. The strength of the wallboard is easy to guarantee.

Description

Technical Field

[0001] The utility model relates to a wall panel with a built-in thermal insulation board, and the utility model also relates to a building whose wall body is mainly constructed by the wall panel with the built-in thermal insulation board. Among them, the wall panel is an autoclaved aerated concrete wall panel. Background Art

[0002] Although there are various types of prefabricated buildings, they all have relatively high requirements for the self-weight of the main structures. Among them, the wall panels mainly use reinforced concrete wall panels at present. In order to reduce the weight, the concrete used is autoclaved aerated concrete, and the prepared wall panels are autoclaved aerated concrete panels (comply with the national standard "Autoclaved Aerated Concrete Panels", standard number GB / T 15762-2020; and the industry standard of construction engineering building materials "Technical Standard for Application of Autoclaved Aerated Concrete Products", standard number JGJ / T 17-2020), and its bulk density is 300~800kg / m 3 , which is one-ninth to one-third of ordinary concrete (Note: Autoclaved aerated concrete has multiple grades, B03~B08, and the dry density varies greatly. Among them, autoclaved aerated concrete with B05 and below is also called autoclaved lightweight aerated concrete, abbreviated as ALC).

[0003] As a prefabricated component, the wall panel usually has self-thermal insulation performance. At present, there are mainly two forms to achieve self-thermal insulation performance. One form is to first make a reinforced concrete autoclaved aerated concrete base plate (hereinafter referred to as the base plate. In addition, at present, there has also appeared a base plate using FRP bars. FRP is Fiber Reinforced Polymer, that is, fiber reinforced composite material, and the fibers therein mainly include glass fiber, carbon fiber, aramid fiber, etc.), and then fix the thermal insulation board on the base plate; the other form is to directly pour the thermal insulation board into the base plate as the inner core when pouring the base plate. The wall panels of the two forms have their own advantages. Among them, for the former, because the thermal insulation board does not need to go through the steam curing step of the base plate (the process temperature is 170°C~210°C, which is related to the type of autoclaved aerated concrete, mostly 185°C~205°C), the thermal insulation board will not melt or denature due to steam curing, so the requirements for the type of thermal insulation board are relatively low. However, because the thermal insulation layer needs to be fixed on the base plate later, the thermal insulation board and the slurry layer are easy to fall off and cause safety accidents. For the latter, because the thermal insulation board needs to go through the steam curing step of the base plate, it is required that the temperature resistance of the thermal insulation board is higher than the process temperature of steam curing, and there are relatively high requirements for the material selection of the thermal insulation board, etc. However, because of its one-piece molding, the subsequent treatment difficulty is lower, and there will be no accidents such as the falling off of the thermal insulation board, so it has a better prospect of popularization and application.

[0004] Typically, as disclosed in Chinese Patent Document CN110792203A, a aerated concrete composite thermal insulation wallboard system is disclosed. This thermal insulation wallboard system includes aerated concrete composite thermal insulation slats, and the aerated concrete composite thermal insulation slats include aerated concrete slats and an interface treatment layer, an adhesive layer, an organic thermal insulation layer, and a thermal insulation slurry protective layer that are sequentially stacked on the aerated concrete slats. Since the affinity between the organic thermal insulation layer and the cement-based slurry is relatively weak, the organic thermal insulation layer and the aerated concrete slats are also connected by plastic anchor bolts. However, there are other functional layers outside the organic thermal insulation layer, and the anchor bolts cannot effectively form a good connection with the other functional layers. In recent years, the detachment of the external thermal insulation layer of the exterior wall has gradually become a social problem that cannot be ignored. Although a certain number of anchor bolts are used to improve the bonding force between the thermal insulation layer and the wall, the problem of detachment of the thermal insulation layer and its outer functional layer cannot be solved. Even the thermal insulation layer of some walls has the problem of overall detachment. Currently, accidents and disputes caused by the detachment of the exterior wall thermal insulation layer and its outer functional layer have occurred almost everywhere in the north.

[0005] In view of this, embedding the thermal insulation board may gradually become the mainstream of precast wallboards. As disclosed in Chinese Patent Document CN117260963A, a reinforced thermal insulation wallboard is disclosed. This reinforced thermal insulation wallboard includes a concrete matrix, a steel cage located within the concrete matrix, and a thermal insulation board located within the concrete matrix. The thermal insulation board is positioned by a tooling during the pouring of the concrete and is poured in together as the inner core of the pouring. This patent document proposes a new research direction and is also an attempt in this new research direction. And a certain amount of products have been put on the market, but some problems have been encountered during the promotion and application process. One typical problem is that since the reinforced thermal insulation wallboard as a whole needs to meet the strength requirements specified by the specifications, when the thermal insulation board is embedded, on the one hand, it affects the strength calculation of the reinforced thermal insulation wallboard, and the calculation becomes very cumbersome. On the other hand, during the pouring process, the thermal insulation board may shift, and the direction and amount of this shift are often difficult to control. In other words, even if the strength of the reinforced thermal insulation wallboard calculated according to the design requirements meets the specification requirements, the strength of each reinforced thermal insulation wallboard will be inconsistent due to the manufacturing process. In other words, it may result in the strength of some reinforced thermal insulation wallboards not meeting the specification requirements, but it is difficult to conduct strength inspections one by one. Although in some implementations, the positioning ability of the tooling can be strengthened and other methods can be used to ensure that the thermal insulation board does not shift or the amount of shift is within an acceptable range, it will inevitably increase the cost of the tooling and the difficulty of process implementation. Summary of the Utility Model

[0006] In view of this, the purpose of the present utility model is to provide a wallboard with a built-in thermal insulation board whose own strength is easily guaranteed. The present utility model also provides a building whose wall mainly uses the wallboard with the built-in thermal insulation board.

[0007] According to the first aspect of the embodiments of the present invention, a wall panel with a built-in thermal insulation board is provided, including:

[0008] An inner panel, with an inner reinforcement cage built therein, mainly for bearing load;

[0009] An outer panel, which is an integral casting structure with the inner panel; and

[0010] A thermal insulation board, which is built in the outer panel as the inner core of the outer panel casting, so that the outer panel is mainly used for heat insulation;

[0011] The concrete used for the inner panel and the outer panel is autoclaved aerated concrete.

[0012] Optionally, an outer mesh sheet is built in the outer panel.

[0013] Optionally, the outer mesh sheet is a steel mesh sheet, a wire mesh sheet or an FRP rib mesh sheet;

[0014] Wherein, FRP is Fiber Reinforced Polymer, that is, fiber reinforced composite material.

[0015] Optionally, the outer mesh sheet is located inside or outside the thermal insulation board, and the distance from the thermal insulation board is 0 - 40 mm.

[0016] Optionally, the thickness of the part of the outer panel located outside the thermal insulation board is not less than 5 mm and not more than 80 mm.

[0017] Optionally, a fiber mesh cloth is built in the part of the outer panel located outside the thermal insulation board.

[0018] Optionally, if the specifications of the ribs used for the outer panel and the inner panel are the same, the reinforcement density of the outer panel is less than that of the inner panel;

[0019] If the reinforcement densities of the outer panel and the inner panel are the same, the rib diameter of the ribs used for the outer panel is less than that of the ribs used for the inner panel; or the outer panel uses FRP ribs and the inner panel uses steel bars.

[0020] Optionally, the thickness of the thermal insulation board is 25 mm - 80 mm.

[0021] Optionally, the thermal insulation board has:

[0022] A first enhanced connection structure, the inner surface and / or the outer surface of the thermal insulation board is a rough surface, a corrugated surface or provided with grooves, and the grooves are transverse grooves, longitudinal grooves and / or oblique grooves; or

[0023] A second enhanced connection structure, through holes or intervention grooves are formed in the normal direction of the thermal insulation board for forming a cement concrete connection body.

[0024] Optionally, the thickness of the outer panel is one-fourth to one-half of the thickness of the inner panel.

[0025] Optionally, the thickness of the inner panel is not less than 20 cm.

[0026] Optionally, the inner reinforcement cage of the inner panel has one to three inner mesh sheets.

[0027] Optionally, the inner panel is provided with tie pieces for installing the wall panel.

[0028] Optionally, the tie pieces are fixedly connected to the inner reinforcement cage.

[0029] Optionally, the inner panel is provided with a tenon and groove structure for assembling adjacent wall panels.

[0030] According to the second aspect of the embodiments of the present invention, a building is provided, and the exterior wall or interior wall of the building is mainly constructed by the wall panel described in the first aspect of the embodiments of the present invention.

[0031] In the embodiments of the present invention, for the wall panel with an embedded insulation board, the method of embedding the insulation board is first adopted, and the insulation board is reliably placed into autoclaved aerated concrete. Whether the affinity between the insulation board and autoclaved aerated concrete is large enough does not affect the fixation of the insulation board itself. In other words, under this technical condition, the insulation board is wrapped in autoclaved aerated concrete, which is equivalent to being contained rather than bonded, so the problem of shedding will not occur. Since the outer connecting surface of the wall panel with an embedded insulation board is a cement-based surface, the connection reliability with the external functional layer is better, and the reliability of the external functional layer is much higher than that of the traditional wall panel with an external insulation board. More importantly, in the embodiments of the present invention, under the condition of embedding the insulation board, the main body of the wall panel is divided into an inner panel and an outer panel. The inner panel has a reinforcement cage and mainly provides load-bearing by the inner panel. In other words, when designing or evaluating the load-bearing capacity of the wall panel, the outer panel with an embedded insulation board can be ignored, and the load-bearing capacity is mainly based on the inner panel. Furthermore, when the requirement for the load-bearing capacity of the outer panel is relatively low, the weakening of the wall panel strength by the insulation board can be ignored, and at the same time, the initial positioning accuracy of the insulation board and the positioning reliability requirement in the pouring state will also be reduced. From another aspect, when the inner panel plays a major role in bearing the load, the consistency of the product load-bearing capacity is relatively easy to ensure, and the influence of whether the insulation board shifts during the pouring process (it should be known that this shift also has a measurement requirement) can be ignored. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the reinforcement cage structure (including the drill rod) of the wall panel with an embedded insulation board in an embodiment.

[0033] Figure 2 It is a schematic cross-sectional structure diagram of the wall panel with an embedded insulation board in an embodiment.

[0034] Figure 3 It is a schematic cross-sectional structure diagram of a wall panel with a thermal insulation board built therein in another embodiment.

[0035] Figure 4 It is a schematic cross-sectional structure diagram of a wall panel with a thermal insulation board built therein in still another embodiment.

[0036] Figure 5 It is a schematic cross-sectional structure diagram of a wall panel with a thermal insulation board built therein in yet another embodiment.

[0037] Figure 6 It is a schematic structure diagram of a thermal insulation board in one embodiment.

[0038] Figure 7 It is a schematic structure diagram of a thermal insulation board in another embodiment.

[0039] Figure 8 It is a schematic structure diagram of a thermal insulation board in still another embodiment.

[0040] Figure 9 It is a schematic structure diagram of a thermal insulation board in yet another embodiment.

[0041] In the figure: 1. Tie member, 2. Embedded part, 3. Main mesh, 4. Connecting member, 5. First drill rod, 6. Second drill rod, 7. Sub-drill rod, 8. Sub-mesh, 9. Inner page board, 10. Outer page board, 11. Thermal insulation board, 12. Fiberglass mesh cloth, 13. Trapezoidal groove, 14. Rectangular groove, 15. Through hole, 16. Corrugated surface. Detailed implementation manners

[0042] For the convenience of description, the wall panel with a thermal insulation board built therein is simply referred to as a thermal insulation wall panel or a wall panel, and its name is determined according to different description scenarios.

[0043] In addition, regarding the inside and outside, the side of the thermal insulation wall panel facing the indoor in the building reference system is its inner side, and the side facing the outdoor is its outer side. For the thermal insulation wall panel, its inner side is relatively easy to identify. In the thermal insulation exterior wall panel, it is often necessary to install a tie member 1, and the side where the tie member 1 is located is the inner side of the thermal insulation exterior wall panel.

[0044] However, it should be known that the wall panel includes an interior wall panel and an exterior wall panel. For the interior wall panel, it is not necessary to install the tie member 1. In addition, for the tie member 1, it does not have to be preset in the Figure 1 pre-set structure as shown. The tie member 1 can be installed after the steam curing of the wall panel. The embedded part 2 shown in the figure can also be not provided, which is common knowledge in this field and will not be elaborated here.

[0045] It should be known that, for the thermal insulation wallboard alone, like the conventional wallboard, it has typical strip characteristics, that is, the board condition with a relatively large aspect ratio of length to width. Its length is generally not less than 2.5m, and there are currently wallboards up to 6m long. Its width is usually not less than 30cm, but it is extremely rare for it to be greater than or equal to 120cm. The thickness of the wallboard rarely exceeds 38cm, but is generally greater than or equal to 25cm. Thus, it can be seen that the wallboard including the thermal insulation wallboard has a relatively large length:width:thickness ratio and has typical strip characteristics.

[0046] The same is true for the thermal insulation board 11. Although in some implementations the aspect ratio of the thermal insulation board 11 is close to 1:1, usually its long side is greater than its wide side, and the ratio of its length to its thickness often is greater than 10.

[0047] In principle, the width corresponds to the transverse direction. However, for the positioning tooling of the thermal insulation board 11, it is often set in the way that the rack is on the top. At the same time, it should be known that for the forming of the wallboard, it is usually not formed one by one, but a large blank is formed each time. After the blank is pre-cured, it is cut to form a single-wallboard blank, and then trimmed and sent to the autoclave for steam curing to make the thermal insulation wallboard. In the blank, the length direction of the wallboard often is parallel to the horizontal plane.

[0048] In this field, the cage needs to be attached to the drill rod, such as Figure 1 the first drill rod 5 and the second drill rod 6 shown in. The drill rod is the base for the positioning and installation of the cage. However, for the assembly of the cage, in addition to using the drill rod as the base, it often also needs to be adapted to a given number of connecting pieces 4. The connecting pieces 4 are used for the connection between the mesh sheets when assembling the cage. And an appropriate amount of connecting pieces 4 are connected to the drill rod to support the cage.

[0049] Regarding the connecting piece 4 and the drill rod, they both belong to the conventional configurations in this field. Among them, the connecting piece 4 is generally a heat-melting plastic part. During the steam curing process of the wallboard, the connecting piece 4 generally disappears due to heat melting. The drill rod can be removed after the pre-curing of the blank is completed. In some implementations, the connecting piece 4 can also use a metal connecting piece, such as a stainless steel connecting piece, which can withstand the steam curing process temperature during the steam curing process. This metal connecting piece can form a part of the cage after the steam curing is completed. However, currently the commonly used supporting connecting piece 2 is still mostly a plastic part with a heat melting temperature lower than the steam curing temperature of the thermal insulation wallboard.

[0050] In view that both the drill rod and the connecting piece 4 are common toolings or consumables in this field, in the embodiments of the present utility model, they are only their conventional applications and will not be elaborated here. If there are scenarios different from the general applications involving the drill rod or the connecting piece 4, they will be described in detail below.

[0051] It should be known that the cage actually exists only in the assembled state. Although there are prefabricated cages in some implementations, for most cages, they often include two or three mesh sheets, and multiple mesh sheets are assembled with each other in a positioning tooling using, for example, the connecting member 4.

[0052] As mentioned above, some of the connecting members 4 are generally installed on, for example, the first drill rod 5 in a set. In some implementations, the installation in a set is achieved by means of the interference fit (also known as interference connection) between the connecting member 4 and, for example, the first drill rod 5. In more implementations, in addition to the interference fit, in order to ensure the state stability of the cage, the connecting member 4 sleeved on, for example, the first drill rod 5 can also use other components for auxiliary positioning, such as a sleeve, to perform auxiliary positioning or main positioning of the connecting member 4 in the axial direction of, for example, the first drill rod 5.

[0053] It should be noted that whether it is pasted or cast-in-place, the thickness ratio of the insulation board 11 to the thickness of the wall is not large. In the field of external wall external insulation technology, the thickness of the insulation board 11 ranges from 30 mm to 120 mm. However, the different thicknesses of the insulation board 11 are mainly used for leveling the external wall. In other words, for some new insulation boards with relatively good insulation effects, such as GPES and GPIR insulation boards, a thickness of 30 mm can basically meet the current requirements of external wall external insulation. Therefore, in the insulation wall panel, the insulation board 11 can have only one layer, and in some embodiments, the insulation board 11 can be provided with two layers in the insulation wall panel. However, it is preferably set to a single layer, and the thickness of the single-layer insulation board 11 is preferably less than or equal to 8 cm, and generally 2.5 cm to 6 cm is more preferable to avoid the outer page board 10 from being too thick.

[0054] In particular, in the embodiments of the present invention, the inner page board 9 mainly plays a load-bearing role. If the outer page board 10 is too thick, the thickness of the inner page board 9 will be limited. In view of the current technical requirements for the total thickness of the wall panel, under this condition, for the outer page board 10, a relatively thin implementation method should be selected as much as possible. At this time, it is required that the thickness of the insulation board 11 is relatively small. Further, under the condition of meeting the insulation requirements, the optimal value is 6 cm thick. If the insulation board used has better insulation effects, the insulation board 11 built into the outer page board 10 can have a thinner thickness.

[0055] In the embodiments of the present invention, the concrete wall is only conceptually divided into the inner page board 9 and the outer page board 10, but the two are actually an integral casting structure, and are only conceptually distinguished. The main purpose is to make the inner page board 9 mainly used for load-bearing and the outer page board 10 mainly used for wrapping the insulation board 11 based on design requirements, thereby forming the insulation page board.

[0056] It can also be known therefrom that the more important function of the outer page board 10 is to bind the heat preservation board 11 inside the wall board in a wrapped manner. Obviously, its strength requirement is premised on the stable placement of the heat preservation board 11 inside the wall board. In other words, even if the outer side of the outer page board 10 forms a concrete covering layer in a way similar to plastering, it can meet the requirement that the outer page board 10 can be stably placed inside the wall board. At this time, the designed thickness of the concrete covering layer of the outer page board 10 can be 3 - 5 mm. If considering the positioning reliability of the heat preservation board 11 and avoiding the exposure caused by the deflection of the heat preservation board 11 due to displacement, etc., the designed thickness of the concrete covering layer can be more than 5 mm, but try to control it within 30 mm.

[0057] It should be noted that the spacing between the mesh sheets in the mesh cage is usually greater than 10 cm, and in more applications, it is greater than 15 cm. Although the existence of the heat preservation board 11 will make the depth of the mesh sheet in the mesh cage relative to the heat preservation board 11 relatively small for the post-embedded bars, compared with the known distance between the mesh sheet and the position where the heat preservation board 11 is located in the heat preservation wall board being less than or equal to 20 mm, there are other influencing factors for the depth of the post-embedded bars in the heat preservation wall board according to the embodiments of the present invention. First, in the embodiments of the present invention, since the outer page board 10 does not play a major load-bearing role but is mainly used to wrap the heat preservation board 11, under this condition, no mesh sheet needs to be arranged in the outer page board 10 with the heat preservation board 11 built in, and it is easier to ensure a relatively large depth of the post-embedded bars of the heat preservation board 11 relative to the mesh cage of the inner page board 9. Secondly, in the embodiments of the present invention, the outer page board 10 does not play a major load-bearing role. Even if a secondary mesh sheet 8 is arranged as shown in Figure 3 the wire diameter of the secondary mesh sheet 8, such as the wire used, will also require a smaller one, and there is a multiple relationship between the depth of the post-embedded bars and the wire diameter. In other words, even under the condition that the thickness of the outer page board 10 is relatively small, a relatively small depth of the post-embedded bars is still easy to ensure.

[0058] It should be further noted that the depth of the post-embedded bars is related to the strength of the wall board. When the main function of the outer page board 10 is to wrap the heat preservation board 11, the requirement for the depth of the post-embedded bars itself is relatively small. In other words, the secondary mesh sheet 8, for example, can still be made of bars with the same wire diameter as the main mesh sheet 3.

[0059] The above mainly makes a general description of the reference system, principle, etc. of the embodiments of the present invention. The following will make a detailed description of the specific composition of the embodiments of the present invention.

[0060] Figures 2 - 4 The wall board with a built-in heat preservation board illustrated in first makes a distinction in the basic composition conceptually rather than physically. Specifically, in the figure, there is an inner page board 9 and an outer page board 10. Substantially, between the two is an autoclaved aerated concrete matrix (hereinafter simply referred to as the matrix) formed by pouring autoclaved aerated concrete slurry together, that is, it is substantially an integral structure, rather than two pre-prepared autoclaved aerated concrete boards.

[0061] However, it should be noted that based on the design requirements, the inner panel 9 is the main load-bearing part of the matrix. In other words, the inner panel 9 is the main body and the key point of the load-bearing design. The overall structure is a reinforced concrete structure, such as reinforced concrete, to ensure the overall structural strength. The outer panel 10 is mainly used to wrap the insulation board 11. Therefore, during design and actual reinforcement, the reinforcement cage should be offset towards the side where the inner panel 9 is located, or only arranged within the inner panel 9. Even if there is a mesh in the outer panel 10, a mesh with a relatively weak strengthening effect can be selected. However, it should also be known that as Figure 1 shown, it is possible to select a secondary mesh 8 whose strengthening effect is not the same as that of the main mesh 3. Simply from the perspective of material preparation, if the mesh specifications are the same, the unity of material preparation is relatively better. If the main mesh 3 and the secondary mesh 8 are different, specifically, the strengthening effect of the secondary mesh 8 can be lower than that of the main mesh 3. Under this condition, different types of meshes can be prepared to save costs, which will be described in detail below and will not be elaborated here.

[0062] As mentioned above, regarding the production of the wall panel, usually the reinforcement cage is first assembled, and then the reinforcement cage is sent into the mold for pouring. And usually, a large blank is first prepared, and then the thimble is pulled out after the blank has been statically cured and pre-cured. In the embodiment of the present invention, the wall panel with an embedded insulation board also adopts this production method. In other words, the inner panel 9 and the outer panel 10 are different parts of the same casting body. Relatively speaking, the reinforcement cage is less likely to shift due to its small surface area, while the insulation board 11 is more likely to shift due to its large surface area. However, it should be understood that the flow rate of the pouring slurry is relatively stable. Even if the positioning and clamping of the insulation board 11 are not very reliable, its displacement is still within a controllable range.

[0063] However, for a traditional wall panel with an embedded insulation board 11 (i.e., the insulation wall panel), if the insulation board 11 is located within the main body of the insulation wall panel, a slight displacement of the insulation board 11 will have a greater impact on the overall strength of the insulation wall panel. On the one hand, the strength design of the insulation wall panel itself is relatively difficult to calculate. On the other hand, the displacement of the insulation board 11 will have a greater impact on the quality control of the insulation wall panel, and the quality control of the strength can only be inspected by sampling, and it is relatively difficult to find on the surface.

[0064] For the thermal insulation wall panel according to the embodiments of the present utility model, only the inner panel 9 needs to be considered in the strength design part. In other words, the outer panel 10 only needs to consider wrapping the thermal insulation panel 11. Under this condition, when the strength design of the inner panel 9 meets the specification requirements, even if the strength reinforcement of the matrix provided by the outer panel 10 is limited, the overall strength of the matrix will only be higher than the specification requirements. Thus, it can be seen that the positioning and clamping requirements of the outer panel 10 for the thermal insulation panel 11 are relatively low, and even the influence on the strength of the matrix under the condition of a small displacement of the thermal insulation panel 11 does not need to be considered. Therefore, the overall strength index of the wall is easy to ensure.

[0065] Based on the above content, it can be known that the inner panel 9 has strength requirements and is internally provided with an inner reinforcement cage, such as Figure 1 the reinforcement cage with two main mesh sheets 3 shown in

[0066] Furthermore, the main function of the inner panel 9 is to bear the load. It is the main load-bearing part of the matrix. In order to reduce the difficulty of design and manufacture, the load-bearing requirements of the matrix can be completely provided by the inner panel 9. In other words, the load-bearing design of the thermal insulation wall panel can be carried out only around the inner panel 9.

[0067] At this time, when designing the strength of the thermal insulation wall panel, the outer panel 10 can be ignored, and the positioning and clamping requirements for the thermal insulation panel 11 are relatively low. Under this condition, the main function of the outer panel 10 is to wrap, and the thickness requirement of the outer panel 10 more considers the possible displacement range of the thermal insulation panel 11.

[0068] Since the inner panel 9 and the outer panel 10 are of an integral casting structure, when the inner panel 9 meets the strength design requirements of the wall panel, the outer panel 10 can always provide a certain amount of strength, making the wall panel have a strength that meets the specification requirements as a whole.

[0069] Based on the foregoing content, it can also be known that the concrete used for the outer panel 10 and the inner panel 9 is autoclaved aerated concrete, and the thermal insulation panel 11 must be cast as the inner core during the casting of the matrix. The thermal insulation panel 11 has to go through the steam curing process of the wall panel. Therefore, the thermal insulation panel 11 should be a thermal insulation panel 11 that can withstand the temperature of the steam curing process.

[0070] Regarding the selectable thermal insulation panel 11, the process temperature of steam curing should be considered. Generally, the process temperature of steam curing is higher than 170 °C, but usually not more than 210 °C, and the process temperature is mostly between 185 °C and 205 °C. Different autoclaved aerated concrete materials have different requirements for the process temperature of steam curing. This is common knowledge in the art and will not be elaborated here.

[0071] Since the outer page board 10 and the inner page board 9 made of autoclaved aerated concrete have been cured during steam curing, the insulation board 11 does not need to bear pressure. In other words, even if it softens, it usually will not collapse. Therefore, the melting point of the insulation board 11 only needs to be higher than the process temperature of steam curing. However, in actual applications, the melting point of the insulation board 11 generally needs to be more than 10°C higher than the process temperature of steam curing, and its softening point can be referred to and applied.

[0072] Under these technical conditions, almost all inorganic insulation boards can meet the requirements, such as asbestos insulation board, foam concrete insulation board, graphite-modified cement-based insulation board, perlite insulation board, rock wool insulation board, foamed ceramic insulation board, foamed glass insulation board, etc.

[0073] The defect of inorganic insulation boards is that their heat insulation performance is not as good as that of organic insulation boards. With the development of technology, some organic insulation boards also have good fire resistance and high temperature resistance. A typical example is the KMPS fireproof insulation board, also known as the KMPS non-combustible composite expanded polystyrene insulation board. Another relatively common organic insulation board with a relatively high melting point is the vacuum insulation panel.

[0074] With the development of technology, especially under the current condition of increasingly high requirements for fire protection grades, more and more organic insulation boards with fire resistance (necessarily high temperature resistance) appear. Such insulation boards should be applicable to the wall boards conceived in the present invention.

[0075] Figures 1 - 4 In the illustrated structure, a mesh for reinforcement is also provided inside the outer page board 10, that is, the secondary mesh 8 shown in the figure. The reinforcement effect and purpose on the outer page board 10 can be the same as or different from those on the inner page board 9. The reinforcement of the outer page board 10 can be simply an increase in strength or toughness, so as to have a better crack resistance effect.

[0076] Another prerequisite is that since the strength of the matrix is only provided by the inner page board 9, the function of the outer page board 10 can tend to the crack resistance effect. Therefore, the selection of the secondary mesh 8 is not limited to conventional ones such as steel mesh or FRP mesh, but can also be the steel wire mesh commonly used in the construction field, or even geotextile or fiber mesh cloth.

[0077] Figures 1 - 4 In this case, the secondary mesh 8 is a relative concept with respect to the main mesh 3. In order to better distinguish the positional relationship, the main mesh 3 was also called the inner mesh in the previous text, while the secondary mesh 8 can be called the outer mesh because it is built into the outer page board 10. The relativity between the outer mesh and the inner mesh is stronger conceptually, rather than indicating the positional relationship of the mesh in the wall board.

[0078] Therefore, the outer mesh here is a conceptually distinguished concept, rather than a mesh exposed outside. It also needs to be built into the autoclaved aerated concrete matrix, specifically inside the outer page board 10.

[0079] As mentioned above, due to different purposes, but there can also be the same purpose. If the outer page board 10 selects a mesh, it can select a mesh in the conventional sense, or other meshes, such as a steel wire mesh or an FRP rib mesh.

[0080] The similarities and differences of several meshes, as well as the technical conditions for selection, are described below:

[0081] At present, the reinforcement added to the reinforced hybrid retaining wall panel is generally steel bars. The characteristics of steel bars are that their tensile strength, compressive strength and shear resistance are very strong, and the technology of forming steel bars into meshes is relatively mature, mainly using welding to form. However, its material belongs to a material that is relatively easy to be corroded. Therefore, before reinforcement, it usually needs to be anti-corrosion treated first, such as spraying paint. The overall production work is not only complex, and for example, spraying paint cannot fundamentally solve the corrosion problem of steel bars.

[0082] The standard name of Industry Standard JG / T 406-2013 is "Glass Fiber Reinforced Bars for Civil Engineering", which stipulates that glass fiber (CFRP, Glass Fiber Reinforced Polymer, glass fiber reinforced composite) bars are used as internal reinforcement for civil engineering. In addition, there are two common types of FRP (Fiber Reinforced Polymer, fiber reinforced composite) bars, namely CFRP (Carbon Fibre-reinforced Polymer, carbon fiber reinforced base composite) bars and AFRP (Aramid Fibre-reinforced Polymer aramid fiber reinforced composite) bars, collectively referred to as FRP bars. The typical characteristics of FRP bars are that their tensile strength is not weaker than that of construction steel bars, and they do not require anti-corrosion, their thermal conductivity coefficient is weaker than that of steel bars, and their market price is relatively low. Therefore, they have unique advantages in the construction field. However, their compressive strength and shear resistance are relatively weak.

[0083] The group standard T / SDCEAS 30009-2023 "Structure of Prefabricated Lightweight Concrete Composite Insulated External Wall Panel (VPR) System" (hereinafter referred to as the 30009 standard) directly adopts FRP bars and further stipulates the fiber-reinforced polymer cage (FRPC). The fiber-reinforced polymer cage is the form of FRP bars in the concrete external wall panel. Thus, it can be seen that the FRPC needs to be fabricated before pouring the concrete. That is, FRPC. Currently, in the reinforced concrete wall panel, the FRPC usually has two FRP mesh sheets, and each mesh sheet is usually composed of two long bars (also known as longitudinal bars) and several short bars (also known as transverse bars). The long bars and short bars are perpendicular in the FRP mesh sheet and are bonded and / or tied at the joints. Between the two FRP mesh sheets, special connectors are used for assembly at the edges to keep a given distance between the two FRP mesh sheets. After fixing the FRPC in a predetermined mold, pouring can be carried out.

[0084] In view of the fact that the technology of forming mesh sheets for both steel bars and FRP bars is relatively mature, it will not be elaborated here. The difference lies only in the strength and cost of the two. For the main mesh sheet 3, either a steel bar mesh sheet or an FRP bar mesh sheet can be selected, and the same applies to the secondary mesh sheet 8.

[0085] Furthermore, since the main mesh sheet 3 has a relatively high strength requirement, a steel bar mesh sheet is preferably selected. If an FRP bar mesh sheet is selected, more FRP bar mesh sheets can be used. When a steel bar mesh sheet is selected, two sheets are used for the main mesh sheet 3, while if an FRP bar mesh sheet is selected, three sheets are selected under the condition of the same wire diameter and the same reinforcement density. If the number of sheets is the same, the wire diameter of the FRP bars can be larger.

[0086] The selection of the number of sheets of the main mesh sheet 3 is generally positively correlated with the thickness of the inner panel 9. The thickness of the inner panel 9 is usually not less than 20 cm. Considering the depth of the implanted bars, one steel bar mesh sheet can be set, or two can be set. If the thickness of the inner panel 9 is 25 cm or more, for example, the number of steel bar mesh sheets set can be three, or two can be set.

[0087] For the secondary mesh sheet 8, it may have a strength enhancement requirement for the outer panel 10, but more reflected in the enhancement requirements for properties such as crack resistance. Therefore, on the one hand, since its load-bearing capacity is relatively weaker than that of the inner panel 9, the secondary mesh sheet 8 itself can select a mesh sheet with a relatively small wire diameter. At the same time, a mesh sheet made of bars with a low cost and overall mechanical properties weaker than steel bars, such as FRP bars, can also be selected, or a steel wire mesh sheet commonly used in the construction industry can be selected.

[0088] In some embodiments, the secondary mesh 8 mainly exhibits crack resistance. Therefore, the implementation methods used for crack resistance in the field of concrete technology can be selected, such as geotextiles, mesh fabrics, etc. The geotextiles and mesh fabrics are used to form the secondary mesh 8. At this time, the secondary mesh 8 is not a rib plate.

[0089] Geotextiles or mesh fabrics, etc., can be supported and tensioned by several connectors 4 fixed on, for example, the second drill rod 6 due to their poor stiffness. After the outer page plate 10 is cured, for example, the mesh fabric can mainly play a role in crack resistance.

[0090] Relatively speaking, for example, a steel mesh sheet often has a certain stiffness, but it can also be tensioned using, for example, the connector 4.

[0091] Regarding the secondary mesh 8, when it adopts the same reinforcement method as the traditional mesh used for wall panel strengthening, it obviously has a strengthening effect. Although the presence of the insulation board 11 and the position offset of the insulation board 11 may cause the strength of the outer page plate 10 to be inconsistent, since the inner page plate 9 plays the main bearing role, in other words, the strength of the outer page plate 10 can be ignored. For the overall substrate, the outer page plate 10 also has a certain strengthening effect, but it does not need to be considered during strength design, and only the strength design of the inner page plate 9 needs to be considered.

[0092] Regarding the position of the secondary mesh 8 relative to the insulation board 11, it can be located outside the insulation board 11 or inside the insulation board 11.

[0093] As mentioned above, for wall panels, the implanted bar depth of the mesh is an important parameter. For Figure 1 the main mesh 3 shown in the figure, the implanted bar depth is preferably in accordance with the specification. However, for the secondary mesh 8 shown in the figure, since in the embodiments of the present invention, the outer page plate 10 into which the secondary mesh 8 is implanted does not play the main load-bearing role but mainly plays a role in wrapping the insulation board 11. Under these technical conditions, the secondary mesh 8 can set its position in the outer page plate 10 based on the implanted bar depth of the specification, or can also not set its position in the outer page plate 10 according to the implanted bar depth of the specification. From the above description, it can be seen that the inner page plate 9 plays the main load-bearing role. For the outer page plate 10, even if it has a load-bearing role, it is similar to an attached load-bearing role, and specific requirements can be waived for it. Therefore, in the outer page plate 10, the implanted bar depth of the secondary mesh 8 can be more flexible.

[0094] The embedded bar depth is manifested in two aspects. On the one hand, it is the depth relative to the surface of the matrix. On the other hand, it is also the depth of its own strength relative to the insulation board 11, such as the depth relative to reinforced concrete which can be ignored. If the embedded bar depth is too small, its strengthening effect on, for example, the outer leaf panel 10 is relatively limited. However, from the perspective of wrapping and crack resistance, the requirement for the embedded bar depth is relatively low, and almost only the requirement for plastering needs to be met. Generally, the thickness of plastering only needs to be 3 - 5 mm, that is, the embedded bar depth of 3 - 5 mm is sufficient for the embedded bar depth.

[0095] If we want to fully exert the strengthening effect of the auxiliary mesh 8, we need to consider its embedded bar depth. However, it should be known that since the inner leaf panel 9 plays the main load-bearing role and the wall panel has a specified thickness requirement, that is, under the condition that the inner leaf panel 9 plays the main load-bearing role, its thickness obviously cannot be too small, generally not less than 20 cm. This determines that the maximum thickness of the outer leaf panel 10 will be limited, and the embedded bar depth can be determined based on the equal division method. For example, if the auxiliary mesh 8 is located outside the insulation board 11, assuming the outer leaf panel 10 is 10 cm thick and the insulation board 11 is 3 cm thick, since the outer leaf panel 10 and the inner leaf panel 9 are cast integrally, the insulation board 11 can be offset inward. For example, the partial thickness of the inner leaf panel 9 on the inner side of the insulation board 11 is 10 mm. Then the thickness between the outer surface of the insulation board 11 and the outer surface of the outer leaf panel 10 is 6 cm. The auxiliary mesh 8 is set in the middle of the 6 cm thick part. If the wire diameter of the auxiliary mesh is 3 mm, the embedded bar depth of the auxiliary mesh 8 is 28.5 mm, close to 30 mm, which can fully meet the requirements for strengthening with the auxiliary mesh 8.

[0096] Another arrangement form of the auxiliary mesh 8 in the outer leaf panel 10 is to be arranged inside the insulation board 11. If only considering the plastering-level design, assuming the distance between the 3 cm thick insulation board and the outer surface of the outer leaf panel 10 is 6 mm, and the total thickness of the outer leaf panel 10 is 8 cm, then the space available for setting the auxiliary mesh 8 in the outer leaf panel 10 is still large, and it can also fully meet the embedded bar depth required by the specification.

[0097] It should be further noted that since the outer leaf panel 10 and the inner leaf panel 9 are cast integrally, when the auxiliary mesh 8 is located inside the insulation board 11, it can be fully offset toward the inner leaf panel 9 side, providing a thick enough autoclaved aerated concrete layer for the wrapping of the insulation board 11.

[0098] Thus, it can be seen that the auxiliary mesh 8 can be located outside the insulation board 11 or inside the insulation board 11. Considering the strengthening effect, and when the thickness of the outer leaf panel 10 is sufficient, the auxiliary mesh 8 can strengthen its strengthening effect. If the thickness of the outer leaf panel 10 is relatively small, it can strengthen the crack resistance of the auxiliary mesh 8.

[0099] For different functions, auxiliary mesh sheets 8 of different types can be selected. For example, if the enhancement function is selected, the auxiliary mesh sheet 8 is made of ribs with an enhancement function. If the crack resistance function is emphasized, a wire mesh sheet can be selected, for example.

[0100] Obviously, when the functions of the auxiliary mesh sheet 8 are different, there will be different requirements for its distance from the insulation board 11. If a wire mesh sheet is used, the auxiliary mesh sheet 8 can be completely attached to the insulation board 11, and the distance between the two is 0 at this time. If the enhancement function is emphasized, the auxiliary mesh sheet 8 needs to leave enough distance from the insulation board 11 to ensure the implanting depth of the reinforcing bars of the auxiliary mesh sheet 8.

[0101] Since the distance between the insulation board 11 and the auxiliary mesh sheet 8 is affected by the thickness of the outer leaf board 10 itself, the distance between the insulation board 11 and the auxiliary mesh sheet 8 should not be too large, generally not exceeding 30 mm. Even if the outer leaf board 10 is relatively thick, considering the overall implanting depth of the auxiliary mesh sheet 8, the distance between the insulation board 11 and the auxiliary mesh sheet 8 should not be greater than 40 mm.

[0102] As the overall associated data, the thickness of the part of the outer leaf board 10 located outside the insulation board 11 is not less than 5 mm and not more than 80 mm. In a more optimal embodiment, the thickness of the part of the outer leaf board 10 outside the insulation board 11 is controlled within 25 mm. The main purpose of the existence of the outer leaf board 10 is to wrap the insulation board 11, and less emphasis is placed on the implanting depth of the auxiliary mesh sheet 8.

[0103] If the allowable thickness of the outer leaf board 10 is relatively large, the thickness of the part of the outer leaf board 10 located outside the insulation board 11 can be relatively large, but the maximum should not exceed 80 mm, and it is preferably not more than 30 mm.

[0104] It should be noted that if the overall thickness of the wall panel is relatively large and the strength of the inner leaf board 9 can fully meet the specification requirements, the thickness of the outer leaf board 10 can be relatively large, but the thickness ratio of the inner leaf board 9 to the thickness ratio of the outer leaf board 10 should be relatively large to ensure the overall strength requirements of the wall panel.

[0105] The thickness ratio of the inner leaf board 9 to the overall thickness of the wall panel is preferably not less than three-fifths, and in a more optimal embodiment, the ratio is preferably not less than two-thirds. If only considering the wrapping effect of the outer leaf board 10 on the insulation board 11, the thickness ratio of the inner leaf board 9 to the overall thickness of the wall panel can reach four-fifths.

[0106] As described above, due to the relatively good heat preservation performance of the heat preservation board 11, with the development of technology, the heat preservation performance of the new type of heat preservation board 11 has made great progress. Even for the heat preservation board 11 used in cast-in-place or pasted composites, most of its thickness is not greater than 9 cm. For example, for the heat preservation board 11 used for pasting, in addition to its heat preservation function, it also has the function of leveling the exterior wall. Therefore, multiple thickness specifications of the heat preservation board 11 are often provided on the same wall. From this, it can also be confirmed that the heat preservation board 11 with a relatively small thickness among multiple thickness specifications has already met the requirements of the building for the heat preservation performance of the heat preservation board 11.

[0107] In the embodiment of the present utility model, obviously, the heat preservation board 11 is not used for leveling the exterior wall. In other words, a heat preservation board 11 with a relatively small thickness can be selected, and it can also meet the requirements of the exterior wall for heat preservation.

[0108] For the heat preservation board 11, the minimum requirement for the thickness of the heat preservation board 11 that can be built into the outer leaf board 10 is not less than 25 mm, but generally it should not be greater than 60 mm, and at most it should not be greater than 80 mm. Just for heat preservation, the use value of the heat preservation board 11 with a thickness greater than 80 mm in the heat preservation wall panel is not great.

[0109] In Figure 3 and Figure 4 In the illustrated structure, the auxiliary mesh sheet 8 is located inside the heat preservation board 11. In the structure illustrated in the figure, a fiberglass mesh cloth 12 is provided on the part of the outer leaf board 10 located outside the heat preservation board 11 to improve the crack resistance of the part of the outer leaf board 10 located outside the heat preservation board 11.

[0110] The fiberglass mesh cloth 12 can have one layer or two layers. If two layers of mesh cloth are used, the distance between the two layers of fiberglass mesh cloth 12 is 3 - 5 mm.

[0111] As described above, the fiberglass mesh cloth 12 can be positioned and tensioned by using the connecting piece 4 to form a fiber layer inside the outer leaf board 10 after pouring.

[0112] The fiberglass mesh cloth 12 is a common mesh cloth in the construction industry. Those skilled in the art can also select other types of mesh cloth, geotextiles, etc.

[0113] In addition, for the wall constructed by using the heat preservation wall panel of the embodiment of the present utility model, when making the decorative surface layer, the part of the wall formed by the heat preservation wall panel can be leveled by using, for example, common fireproof heat preservation slurry, and then plastered. When plastering, the mesh cloth can be pressed in, which helps to reduce the risk of cracking of the heat preservation wall panel while achieving overall crack prevention.

[0114] From the perspective of improving the bonding ability and reducing cracking, the insulation board 11 itself can have a structure that improves the bonding ability with the substrate. For the convenience of description, in some embodiments, it is called the first strengthening connection structure. In this first strengthening structure, the inner surface and / or outer surface of the insulation board 11 is a rough surface, a corrugated surface 16 or is provided with grooves, and the grooves are transverse grooves, longitudinal grooves and / or oblique grooves.

[0115] Relatively speaking, the processing of the corrugated surface 16 is relatively difficult, while the formation of the grooves is relatively easy. In the technical field of the insulation board 11, the grooves are usually directly formed using a milling cutter.

[0116] For the rough surface of the insulation board 11, the surface of the insulation board can be roughened by sandblasting so that the slurry can penetrate, thereby improving the bonding ability.

[0117] Among them, the grooves and the corrugated surface 16 will have a large area of penetration, thereby forming cement concrete that penetrates into the insulation board 11, and forming a bonding structure after curing.

[0118] Among them, Figure 6 As shown, the insulation board 11 has a trapezoidal groove 13 on its surface, Figure 7 while this is the insulation board 11 with a rectangular groove 14 on its surface. The grooves opened on the insulation board 11 in both examples are transverse grooves. However, in some embodiments, the grooves can also be longitudinal grooves or oblique grooves.

[0119] In some embodiments, the structure of the insulation board 11 is used to provide a second strengthening connection structure. Specifically, the insulation board 11 is provided with through holes 15 or penetration grooves in the normal direction to form a cement concrete connection body. The number of through holes 15 having two or four can meet the requirements, and the weakening of the heat insulation performance of the insulation board 11 is relatively limited.

[0120] In addition, as Figures 2 - 4 the exemplified structure, the inner page board 9 is provided with a tenon and groove structure for assembling between adjacent wall panels.

[0121] Next, the preparation method of the wall panel with an embedded insulation board is described. First, look at how the insulation board 11 is positioned. Figure 1 The components that can provide the positioning of the insulation board 11 include the second drill rod 6, the auxiliary drill rod 7 and the auxiliary mesh sheet 8, as well as the connecting piece 4 located between the auxiliary mesh sheet 8 and the main mesh sheet 3. Therefore, there are various options for the available positioning methods of the insulation board 11.

[0122] In some implementations, the positioning of the insulation board 11 can directly rely on, for example, the auxiliary mesh sheet 8. Especially when the insulation board 11 and the auxiliary mesh sheet 8 are in a fitting state, for example, inclined wires or directly U-shaped steel wires can be used for interspersed bundling.

[0123] In some implementations, the thermal insulation board 11 can also be directly clamped between the secondary mesh sheet 8 and the primary mesh sheet 3. Since the primary mesh sheet 3 is located within the inner page board 9 and the thermal insulation board 11 should be located within the outer page board 10, the thermal insulation board 11 can be fixed by using the clamping method of the connecting member 4. The connecting member 4 for clamping the thermal insulation board 11 is the connecting member 4 for connecting the secondary mesh sheet 8 and the primary mesh sheet 3.

[0124] Since the cage is often positioned using a dedicated tooling, the dedicated tooling includes a vertical drill rod. In some implementations, the thermal insulation board 11 can be directly strung on, for example, the second drill rod 6.

[0125] Since the drill rods are generally relatively thick, in order to avoid cracking the thermal insulation board 11 when inserting it, the second drill rod 6 and the secondary drill rod 7 are used in combination to position and clamp the thermal insulation board 11. Under this condition, due to the intervention of the secondary drill rod 7, the positioning of the thermal insulation board 11 does not depend or does not completely depend on the second drill rod 6 to achieve positioning, so the positional relationship with the secondary mesh sheet 8 will become relatively flexible. Under this condition, the distance between the thermal insulation board 11 and the secondary mesh sheet 8 can be effectively controlled, so that the reinforcement implantation depth of the secondary mesh sheet 8 is less affected by the position of the thermal insulation board 11, and the mutual influence between the positioning of the thermal insulation board 11 and the secondary mesh sheet 8 is small. At the same time, since it does not depend or does not completely depend on the second drill rod 6, and even less depends on the secondary mesh sheet 8, under this condition, the thermal insulation board 11 can be directly clamped, for example, between the secondary drill rods 7 or between the secondary drill rod 7 and the second drill rod 6, which can greatly improve the installation efficiency of the thermal insulation board 11 on the thermal insulation board 11 positioning tooling.

[0126] In addition, since the secondary drill rod 7 is dedicated to the positioning of the thermal insulation board 11, the secondary drill rod 7 can be relatively thin, and the thermal insulation board 11 can be positioned in an inserted manner.

[0127] It can also be known from this that Figure 1 The second drill rod 6 shown in is the same as the first drill rod 5, and is mainly used for the positioning and installation of some connecting members 4. And the assembly and positioning of the reinforcement cage belong to the general knowledge in the art, and will not be elaborated here.

[0128] Furthermore, the method for preparing a wall panel with a built-in thermal insulation board 11 includes the following steps:

[0129] 1) According to the inner reinforcement cage of the inner page board 9 of the wall panel, a drill rod for positioning and placing the inner reinforcement cage is provided, such as Figure 1 the first drill rod 5 shown in, and according to the predetermined position of the thermal insulation board 11 in the outer page board 10 of the wall panel, an outer drill rod for positioning and placing the thermal insulation board 11 is provided, such as Figure 1 the second drill rod 6 and the secondary drill rod 7 shown in; it should be noted that the second drill rod 6 is the installation base of the thermal insulation board 11, which can be a direct installation base or an indirect installation base.

[0130] 2) Set the inner reinforcement cage on the inner drill rod through the connecting piece 4, and directly or indirectly position and install the thermal insulation board 11 on the outer drill rod to form an inner assembly.

[0131] The inner drill rod and the outer drill rod are usually installed on a beam body or a plate body for the overall lifting or shifting.

[0132] 3) Lower the inner assembly into the casting mold.

[0133] 4) Pour the autoclaved aerated concrete slurry into the casting mold.

[0134] 5) Carry out static curing.

[0135] 6) Demold and remove the drill rods to obtain a blank, and cut the blank into a wall panel blank.

[0136] 7) Send the wall panel blank into an autoclave for steam curing to obtain a wall panel with a thermal insulation board built in.

[0137] If the outer leaf panel 10 has an outer mesh sheet, the outer drill rod has a second drill rod 6 between the outer mesh sheet and the inner reinforcement cage. The second drill rod 6 is first used for the installation and positioning of some connecting pieces 4, and then these connecting pieces 4 are used for positioning the auxiliary mesh sheet 8.

[0138] Correspondingly, when assembling the reinforcement cage, use the second drill rod 6 as a connecting base to connect the inner reinforcement cage and the outer mesh sheet through the connecting piece 4 fixed on the second drill rod 6.

[0139] In some embodiments, if the thermal insulation board 11 is between the outer mesh sheet and the inner reinforcement cage, the thermal insulation board 11 is clamped between the corresponding connecting pieces 4.

[0140] In other embodiments, provide a secondary drill rod 7 for use in cooperation with the second drill rod 6 to clamp the thermal insulation board 11 between the second drill rod 6 and the secondary drill rod 7 or the secondary drill rod 7 is inserted and positioned for the thermal insulation board 11, and the second drill rod 6 correspondingly clamps and positions the thermal insulation board 11.

Claims

1. A wall panel with a built-in insulation board, characterized in that: include: The inner page plate has an internal reinforcement cage built in, which is mainly used for load bearing; The outer page plate is an integral cast structure with the inner page plate; and The insulation board is built into the outer page board as the inner core of the outer page board, so that the outer page board is mainly used for insulation; The concrete used for the inner page plate and the outer page plate is autoclaved aerated concrete.

2. The wall panel according to claim 1, characterized in that The outer page panel is built with an outer mesh sheet.

3. The wall panel according to claim 2, characterized in that The outer mesh is a steel mesh, a steel wire mesh or a FRP mesh; Among them, FRP is Fiber Reinforced Polymer, which is a fiber-reinforced composite material.

4. The wall panel according to claim 3, characterized in that The outer mesh is located on the inner side or the outer side of the insulation board, and the distance from the insulation board is 0-40 mm.

5. The wall panel according to claim 3 or 4, characterized in that: The thickness of the outer leaf plate portion located outside the insulation board shall not be less than 5mm and not more than 80mm.

6. The wall panel according to claim 5, characterized in that The outer panel portion located outside the insulation board is built with fiber mesh cloth.

7. The wall panel according to claim 3, characterized in that If the specifications of the reinforcement used in the outer and inner panels are the same, the reinforcement density of the outer panel is less than that of the inner panel; If the reinforcement density of the outer plate and the inner plate is the same, the diameter of the reinforcement used in the outer plate is smaller than that of the reinforcement used in the inner plate; or FRP reinforcement is used for the outer plate and steel reinforcement is used for the inner plate.

8. The wall panel according to claim 1, characterized in that The thickness of the insulation board is 25mm~80mm.

9. The wall panel according to claim 1, characterized in that The insulation board has: The first strengthening connection structure, the inner surface and / or the outer surface of the insulation board is a rough surface, a corrugated surface or is provided with grooves, and the grooves are transverse grooves, longitudinal grooves and / or oblique grooves; or The second reinforced connection structure is that the insulation board is provided with through holes or insertion grooves in the normal direction to form a cement concrete connection body.

10. The wall panel according to claim 1, characterized in that The thickness of the outer page plate is one quarter to one half of the thickness of the inner page plate.

11. The wall panel according to claim 1, characterized in that The thickness of the inner page board shall not be less than 20cm.

12. The wall panel according to claim 1 or 11, characterized in that: The inner reinforcement cage provided with the inner page plate has one to three inner mesh sheets.

13. The wall panel according to claim 1, characterized in that The inner page panels are provided with anchors for installing the wall panels.

14. The wall panel according to claim 13, characterized in that The anchor is fixedly connected to the inner reinforcement cage.

15. The wall panel according to claim 1, characterized in that The inner page panels are provided with a tongue and groove structure for assembling adjacent wall panels.

16. A building, characterized in that: The exterior wall or interior wall of the building is mainly constructed by the wall panels described in any one of claims 1 to 15.

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