Cast-in-place concrete single-face composite A-level insulation board and building comprising same

Abstract

The utility model relates to a cast-in-place concrete single-face composite A-level insulation board and a building comprising the same, and relates to the field of building outer wall external insulation systems. The heat preservation layer and the inner side reinforcing layer are bonded through a two-component concrete interface agent. Wherein the inner side reinforcing layer is an anti-crack mortar layer with a built-in double-layer glass fiber net, and the inner side reinforcing layer is used for being connected with a concrete structure layer; a plurality of sinking holes are formed in the outer side plate face of the heat preservation layer and used for allowing anchor plates of anchor bolts to sink into the plate face. The utility model solves the problems that the flatness of the current cast-in-place concrete thermal insulation structure board is poor, and the leveling layer with the thickness of (20-30) mm generally needs to be processed by rubber powder polyphenyl granule slurry before the construction of the facing layer, improves the flatness of the external wall thermal insulation, reduces the production cost of the composite board, saves the leveling material, reduces the working procedures, and improves the construction efficiency. The construction period is shortened, the construction cost and the material cost are saved, and the total project cost is reduced. And the risk that the leveling layer cracks and falls off is avoided.

Description

Technical Field

[0001] The utility model relates to the field of external thermal insulation systems for building exterior walls, in particular to a cast-in-place concrete single-sided composite A-grade thermal insulation board and a building comprising the same. Background Art

[0002] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art.

[0003] In the integrated system of cast-in-place concrete insulation structure, reinforcement layers are generally cast on both sides of the insulation layer. However, after the concrete pouring is completed and the outer formwork is removed, the flatness of the board surface is very poor. Before the construction of the finishing layer, it is generally necessary to use a (20-30) mm thick leveling layer made of glue powder polystyrene particle slurry. The leveling treatment will increase the material and construction costs, and also increase the construction process and construction difficulty, increase the total project cost and construction period. At the same time, after the leveling treatment, the risk of cracking and falling off is also higher.

[0004] Therefore, it is necessary to develop a Class A insulation board for cast-in-place concrete insulation structure integrated system that does not require leveling treatment and can meet mechanical properties. Utility Model Content

[0005] Technical issues

[0006] In view of this, the technical problem to be solved by the utility model is to provide an exterior wall insulation board repair structure that does not require leveling treatment and can meet mechanical properties, and an exterior wall insulation repair board and building including the same. The utility model solves the problem that the current cast-in-place concrete insulation structure board surface has poor flatness and generally requires a (20-30) mm thick leveling layer treatment with glue powder polystyrene particle slurry before the construction of the finishing layer. The utility model improves the flatness of the exterior wall insulation, reduces the production cost of the composite board, saves leveling materials, reduces the process, shortens the construction period, saves construction costs and material costs, and reduces the total project cost. The risk of cracking and falling off of the leveling layer is avoided.

[0007] Solution

[0008] In order to solve the above technical problems, the utility model provides a cast-in-place concrete single-sided composite A-grade insulation board, which is formed by bonding the insulation layer and the inner reinforcement layer through a two-component concrete interface agent; wherein,

[0009] The inner reinforcement layer is an anti-cracking mortar layer with a double-layer glass fiber mesh built in, and the inner reinforcement layer is used to connect with the concrete structure layer;

[0010] The outer plate surface of the thermal insulation layer is provided with a plurality of sinking holes for the anchor plates of the anchor bolts to sink into the plate surface.

[0011] Furthermore, the dimensions of the sinking hole are: 60-65 mm in diameter and 3-5 mm in depth.

[0012] Furthermore, the distance between the sinking holes and the edge of the plate is ≥75mm; the vertical distance between the sinking holes is ≤250mm, and the horizontal distance between the sinking holes is ≤225mm.

[0013] Furthermore, the thermal insulation layer is made of a thermosetting composite polystyrene foam board with a combustion performance of Class A.

[0014] Furthermore, the thickness of the inner reinforcement layer is 5 to 7 mm.

[0015] Furthermore, the inner reinforcement layer is composed of anti-cracking mortar and an embedded double-layer 160g / ㎡ glass fiber mesh cloth, wherein the cement grade used in the anti-cracking mortar is P.O42.5.

[0016] Furthermore, its thermal conductivity is ≤0.045W / (m·k) and its tensile strength is ≥0.1MPa.

[0017] Furthermore, the width of the cast-in-place concrete single-sided composite A-level insulation board is ≥600mm, and the thickness and length can be processed according to the design dimensions.

[0018] In a second aspect, a building is provided, comprising a concrete structural layer and the cast-in-place concrete single-sided composite Class A insulation board according to the first aspect connected thereto.

[0019] Furthermore, the concrete structure layer and the cast-in-place concrete single-sided composite Class A insulation board are reinforced by anchor bolts, and the anchor plates of the anchor bolts are engaged with the sinking holes so that the anchor plates are completely sunk into the board surface of the insulation layer.

[0020] Furthermore, the distance between the anchor bolts and the plate edge is ≥75mm; the vertical distance between the anchor bolts is ≤250mm, and the horizontal distance between the anchor bolts is ≤225mm.

[0021] Furthermore, a building formwork is installed on the outer side of the cast-in-place concrete single-sided composite A-grade insulation board.

[0022] Beneficial Effects

[0023] (1) Compared with the existing composite insulation board, the utility model adopts a single-sided inner reinforcement layer, and improves the crack resistance, fire resistance and protection of the inner reinforcement layer to the insulation layer through the built-in double-layer glass fiber mesh, which can avoid the risk of cracking caused by reducing the outer mortar mesh cloth composite layer. When installed with the concrete structure layer, it can also resist the pressure of the concrete pad and the damage to the insulation board during concrete pouring and vibration. It can also increase the bending load of the insulation layer and reduce the risk of fracture and loss of the insulation board. At the same time, due to the reduction of the (5mm-7mm) thick outer mortar mesh cloth composite layer, the production cost is reduced and the market competitiveness of the product is increased. Compared with the existing ordinary double-sided composite mortar mesh cloth composite board, the mortar composite layer and leveling layer are less in the construction of the exterior wall insulation system, eliminating the risk of cracking and falling off of the structural layer. The utility model adds sinking holes on the outside of the insulation layer to avoid cement slurry caused by slurry flowing at the board joints during concrete pouring, and reduces the construction process and construction cost of removing cement slurry during the construction of the finishing layer. At the same time, the sinking hole also reduces the risk of cracking of the finishing layer at the anchor plate position, which can save maintenance costs during the use of the project.

[0024] (2) The cast-in-place concrete single-sided composite Class A insulation board of the utility model can replace the use of rock wool composite boards. Rock wool composite boards have many disadvantages, such as strong water absorption, water swelling, low tensile strength, and high thermal conductivity (0.046W / (m·k)). They cannot be drilled with sink holes, and cannot be polished at locations with poor flatness. The core material of the cast-in-place concrete single-sided composite Class A insulation board adopts a thermosetting composite polystyrene foam board (referred to as thermosetting board) with Class A combustion performance. The thermal conductivity is 0.045W / (m·k), the thermal insulation performance is better than the rock wool composite board, and the tensile strength is high. It is completely suitable for public buildings or super high-rise buildings. In addition, because the thermosetting board contains cement-based materials, cement is water-hardening, and the strength of the thermosetting board will not decrease but increase when it comes into contact with water. After the formwork is removed, the locations with poor insulation flatness can be polished, which is simple and efficient to operate.

[0025] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, and at the same time to make the above and other purposes, technical features and advantages of the utility model easier to understand, one or more preferred embodiments are listed below and described in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0027] Figure 1It is a schematic diagram of the cross-sectional structure of the cast-in-place concrete single-sided composite A-grade thermal insulation board according to the utility model.

[0028] Figure 2 It is a schematic diagram of the top structure of an embodiment of the cast-in-place concrete single-sided composite A-grade insulation board according to the utility model.

[0029] Among them, 1-insulation layer, 2-inner reinforcement layer, 3-sinking hole. DETAILED DESCRIPTION

[0030] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0031] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0032] In this document, for the convenience of description, spatial relative terms such as "below", "below", "down", "above", "above", "upper", etc. may be used to describe the relationship between one element or feature and another element or feature in the accompanying drawings. It should be understood that the spatial relative terms are intended to include different orientations of the object in use or operation in addition to the orientation depicted in the figure. For example, if the object in the figure is turned over, the element described as being "below" or "below" other elements or features will be oriented "above" the element or feature. Therefore, the exemplary term "below" can include both below and above. Objects may also have other orientations (rotated 90 degrees or other orientations) and the spatial relative terms used in this document should be interpreted accordingly.

[0033] In this document, the terms "first", "second", etc. are used to distinguish two different elements or parts, and are not used to limit a specific position or relative relationship. In other words, in some embodiments, the terms "first", "second", etc. can also be interchangeable.

[0034] The utility model provides an embodiment of cast-in-place concrete single-sided composite A-level insulation, such as Figure 1 to Figure 2 As shown, it is formed by bonding an insulation layer 1 and an inner reinforcement layer 2 by a two-component concrete interface agent; wherein the inner reinforcement layer 2 is an anti-cracking mortar layer with a built-in double-layer glass fiber mesh, and the inner reinforcement layer 2 is used to connect with the concrete structure layer; the outer plate surface of the insulation layer 1 is provided with a plurality of sinking holes 3 for the anchor plates of the anchor bolts to sink into the plate surface.

[0035] When the utility model is in use, the inner reinforcement layer of the cast-in-place concrete single-sided composite A-grade insulation is brought into contact with the concrete structural layer, and is reinforced at the position of the sinking hole by anchor bolts, and the anchor plate of the anchor bolts is completely sunk into the board surface, thereby avoiding the appearance of a layer of cement slurry due to slurry flowing at the board joints during concrete pouring, and reducing the construction process and construction cost of removing the cement slurry during the construction of the finishing layer. At the same time, the sinking hole also reduces the risk of cracking of the finishing layer at the anchor plate position, which can save the maintenance cost during the use of the project. Compared with the existing composite insulation board, the utility model adopts a single-sided inner reinforcement layer, and improves the crack resistance, fire resistance and protection of the insulation layer of the inner reinforcement layer through the built-in double-layer glass fiber mesh, which can avoid the risk of cracking caused by reducing the outer mortar mesh cloth composite layer. When installed with the concrete structural layer, it can also resist the pressure of the concrete pad and the damage to the insulation board during concrete pouring and vibration. It can also increase the bending load of the insulation layer and reduce the risk of fracture and loss of the insulation board. At the same time, the reduction of the (5mm-7mm) thick outer mortar mesh cloth composite layer reduces production costs and increases the market competitiveness of the product. Compared with the existing ordinary double-sided composite mortar mesh cloth composite board, the mortar composite layer and leveling layer are less in the construction of the exterior wall insulation system, eliminating the risk of cracking and falling off of the structural layer. The utility model adds sinking holes on the outside of the insulation layer to avoid cement slurry caused by slurry flowing at the plate joints during concrete pouring, and reduces the construction process and construction cost of shoveling cement slurry during the construction of the finishing layer. At the same time, the sinking holes also reduce the risk of cracking of the finishing layer at the anchor plate position, which can save maintenance costs during the use of the project.

[0036] A composite embodiment of the utility model can be: first use dust removal equipment to clean the dust on the board surface of the insulation layer, and then roll-coat a layer of two-component concrete interface agent for treatment. Through dust removal and interface treatment, the bonding strength between the insulation layer and the inner reinforcement layer can be increased by 15% to 20% compared with the existing technology.

[0037] Furthermore, the dimensions of the sinking hole 3 are: diameter 60-65 mm, depth 3-5 mm.

[0038] Furthermore, the distance between the sinking holes 3 and the edge of the plate is ≥75 mm; the vertical distance between the sinking holes 3 is ≤250 mm, and the horizontal distance between the sinking holes 3 is ≤225 mm.

[0039] Furthermore, the thermal insulation layer 1 is made of a thermosetting composite polystyrene foam board with a combustion performance of Class A.

[0040] Furthermore, the thickness of the inner reinforcing layer 2 is 5 to 7 mm.

[0041] In order to improve the overall bending strength of the insulation board, the inner reinforcement layer 2 can be composed of anti-cracking mortar and embedded double-layer 160g / ㎡ glass fiber mesh cloth, wherein the cement grade used in the anti-cracking mortar is P.O42.5. It can increase the bending load of the insulation layer and reduce the risk of fracture and loss of the insulation board. At the same time, it can resist the pressure of the concrete pad and also resist the damage to the insulation board during concrete pouring and vibration.

[0042] Furthermore, its thermal conductivity is ≤0.045W / (m·k) and its tensile strength is ≥0.1MPa.

[0043] Furthermore, the width of the cast-in-place concrete single-sided composite Class A insulation board is ≥600mm, and the thickness and length can be processed according to the design size. Since the cast-in-place concrete single-sided composite Class A insulation board is relatively wide, it has high requirements for crack resistance and needs to resist the pressure of the concrete pad. At the same time, it can also resist the damage to the insulation board during concrete pouring and vibration. The utility model can ensure that the corresponding resistance requirements are met through a specific internal reinforcement layer.

[0044] In a second aspect, a building is provided, comprising a concrete structural layer and the cast-in-place concrete single-sided composite Class A insulation board according to the first aspect connected thereto.

[0045] Furthermore, the concrete structure layer and the cast-in-place concrete single-sided composite Class A insulation board are reinforced by anchor bolts, and the anchor plates of the anchor bolts are engaged with the sinking holes 3 so that the anchor plates are completely sunk into the board surface of the insulation layer 1 .

[0046] Furthermore, the spacing between the anchor bolts and the plate edge is ≥75mm; the vertical spacing is ≤250mm, and the horizontal spacing is ≤225mm.

[0047] Cast-in-place concrete single-sided composite A-grade insulation board cannot be used instead of external formwork. Building formwork needs to be installed on its outside during installation.

[0048] The cast-in-place concrete single-sided composite A-grade insulation board of the utility model can replace the use of rock wool composite board. Rock wool composite board has many disadvantages, such as strong water absorption, water swelling, low tensile strength, and high thermal conductivity (0.046W / (m·k)). It cannot be drilled with sink holes, and cannot be polished at locations with poor flatness. The core material of the cast-in-place concrete single-sided composite A-grade insulation board adopts a thermosetting composite polystyrene foam board (referred to as thermosetting board) with a combustion performance of Class A. The thermal conductivity is 0.045W / (m·k), the thermal insulation performance is better than the rock wool composite board, and the tensile strength is high, which is completely suitable for public buildings or super high-rise buildings. In addition, because the thermosetting board contains cement-based materials, cement is water-hardening, and the strength of the thermosetting board will not decrease but increase when it comes into contact with water. After the formwork is removed, the location with poor insulation flatness can be polished, and the operation is simple and efficient.

[0049] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. Any simple modifications, equivalent changes and modifications made to the above exemplary embodiments should fall within the scope of protection of the utility model.

Claims

1. A cast-in-place concrete single-sided composite A-grade insulation board, characterized in that: It is made of the insulation layer and the inner reinforcement layer bonded by a two-component concrete interface agent; The inner reinforcement layer is an anti-cracking mortar layer with a double-layer glass fiber mesh built in, and the inner reinforcement layer is used to connect with the concrete structure layer; The outer plate surface of the thermal insulation layer is provided with a plurality of sinking holes for the anchor plates of the anchor bolts to sink into the plate surface.

2. The cast-in-place concrete single-sided composite A-grade insulation board according to claim 1, characterized in that: The dimensions of the sinking hole are: 60-65 mm in diameter and 3-5 mm in depth; And / or, the distance between the sinking holes and the edge of the plate is ≥75mm; the vertical distance between the sinking holes is ≤250mm, and the horizontal distance between the sinking holes is ≤225mm.

3. The cast-in-place concrete single-sided composite Class A insulation board according to claim 1, characterized in that: The thermal insulation layer is made of a thermosetting composite polystyrene foam board with a combustion performance of Class A.

4. The cast-in-place concrete single-sided composite Class A insulation board according to any one of claims 1 to 3, characterized in that: The thickness of the inner reinforcement layer is 5 to 7 mm.

5. The cast-in-place concrete single-sided composite Class A insulation board according to claim 4, characterized in that: The inner reinforcement layer is composed of anti-cracking mortar and an embedded double-layer 160g / ㎡ glass fiber mesh cloth, wherein the cement grade used in the anti-cracking mortar is P.O42.

5.

6. The cast-in-place concrete single-sided composite Class A insulation board according to any one of claims 1 to 3, characterized in that: Its thermal conductivity is ≤0.045W / (m·k), and its tensile strength is ≥0.1MPa; And / or, the width of cast-in-place concrete single-sided composite Class A insulation board is ≥ 600mm.

7. A building, characterized in that: It comprises a concrete structural layer and a cast-in-place concrete single-sided composite Class A insulation board as claimed in any one of claims 1 to 6 connected thereto.

8. The building according to claim 7, characterized in that The concrete structure layer and the cast-in-place concrete single-sided composite Class A insulation board are reinforced by anchor bolts, and the anchor plates of the anchor bolts are engaged with the sinking holes so that the anchor plates are completely sunk into the board surface of the insulation layer.

9. The building according to claim 7 or 8, characterized in that: The distance between the anchor bolts and the plate edge is ≥75mm; the vertical distance between the anchor bolts is ≤250mm, and the horizontal distance between the anchor bolts is ≤225mm.

10. The building according to claim 7 or 8, characterized in that: A building formwork is also installed on the outer side of the cast-in-place concrete single-sided composite A-grade insulation board.

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