Integrated building structural member of ultra-thin large-size UHPC composite A-level fireproof insulation board

Abstract

The utility model discloses an integrated building structural member of an ultra-thin large-size UHPC (Ultra High Performance Concrete) composite A-level fireproof insulation board. The integrated building structural member comprises the A-level fireproof insulation board, an interface bonding layer, an ultra-thin large-size UHPC veneer and a plurality of double-tail-disc stainless steel connecting pieces which are sequentially mounted and fixed on a wall body from bottom to top, the ultra-thin large-size UHPC veneer and the A-level fireproof heat preservation board are bonded together through an interface bonding layer. The double-tail-disc stainless steel connecting piece is located below the ultra-thin large-size UHPC veneer and comprises a disc stainless steel connecting piece body and an anchor disc connecting piece body which are fixedly connected in a matched mode, and the disc stainless steel connecting piece body penetrates through the A-level fireproof heat preservation plate and extends into the wall. The anchor disc connecting piece penetrates through the interface bonding layer and extends into the disc stainless steel connecting piece to be fixedly connected into a whole in a matched mode. The performance of the obtained integrated building structural member meets the regulations of General Technical Requirements for External Wall Thermal Insulation Composite Board JG / T 480-2015.

Description

Technical Field

[0001] This utility model belongs to the field of building materials, specifically relating to an integrated building structural component of an ultra-thin, large-size UHPC composite Class A fireproof and heat-insulating board. Background Technology

[0002] Statistics show that the total energy consumption and carbon emissions of buildings throughout their entire life cycle account for about 50% of the country's total energy consumption and carbon emissions. In traditional buildings, heat loss through the building envelope reaches as high as 70% to 80%. Ultra-low energy buildings and zero-carbon buildings reduce heat loss by 60% compared to existing building envelopes. Developing ultra-low energy buildings and zero-carbon buildings is of great significance for my country to achieve its building energy conservation and "dual-carbon" goals.

[0003] In the prior art, patent document CN112726990A discloses a fireproof, heat-insulating, and decorative integrated panel, its preparation method, and its installation method. From top to bottom, it comprises an inorganic fireproof panel, a fireproof and heat-insulating layer, and an inorganic fireproof base plate. The fireproof and heat-insulating layer comprises an organic high-flame-retardant heat-insulating layer and an inorganic fireproof heat-insulating pad. One side of the inorganic fireproof heat-insulating pad is bonded to the inner surface of the inorganic fireproof base plate, and the other side of the inorganic fireproof heat-insulating pad is bonded to one side of the organic high-flame-retardant heat-insulating layer with high-temperature resistant adhesive. The other side of the organic high-flame-retardant heat-insulating layer is bonded to the inorganic fireproof panel. This integrated panel combines fireproof, heat-insulating, and decorative functions, solving problems such as poor fire resistance, poor hanging force, and insufficient heat insulation performance of traditional integrated heat-insulating and decorative panels. Patent document CN206408871U discloses a lightweight Class A fireproof, heat-insulating, and decorative integrated panel, comprising a Class A fireproof insulation layer, a bottom layer of insulation material, a top layer of insulation material, reinforcing ribs of the insulation layer, a protective layer of insulation material, an interface layer, and a decorative surface layer. One main surface of the Class A fireproof insulation layer is coated with the bottom layer of insulation material, and the other main surface is coated with the top layer of insulation material. The reinforcing ribs of the insulation layer are connected to and separated from the bottom and top layers of insulation material by the Class A fireproof insulation layer. An interface layer is composited on the top layer of insulation material, and a decorative coating material is applied to the interface layer to form the decorative surface layer. The remaining four sides are coated with a protective layer of insulation material. It features lightweight, high safety, Class A fire resistance, long decorative life, good insulation effect, no pollution, time-saving construction, and convenient installation, making it suitable for use on the exterior facades of both new and old buildings. Patent document CN204590489U discloses a basalt fiber composite vertical fiber rock wool fireproof, heat-insulating, and decorative integrated board, comprising a fireproof and heat-insulating layer, a core layer, an adhesive layer, and a decorative layer. The core layer is located between two fireproof and heat-insulating layers, with one side of the fireproof and heat-insulating layer bonded to the decorative layer via the adhesive layer. The fireproof and heat-insulating layer uses basalt fiber fireproof and heat-insulating board, the core layer uses vertical fiber rock wool insulation board, and the decorative layer is flexible facing brick. This utility model provides an integrated fireproof, heat-insulating, and decorative board with advantages such as low cost, good heat insulation effect, high fire resistance, and easy installation. By using basalt fiber fireproof and heat-insulating board composite vertical fiber rock wool board as the fireproof and heat-insulating layer and core layer, it achieves a Class A fire resistance rating and high heat insulation performance, good thermal stability, and is not easily deformed, cracked, or warped. The use of flexible facing brick as the surface decorative layer provides advantages such as light weight, crack resistance, high flexibility, uniform surface without discoloration, and no joints.Patent document CN111456227A discloses a prefabricated panel structure building and its construction method. It includes a new type of prefabricated panel structure building with no more than six stories, which is formed by using autoclaved aerated concrete (AAC) load-bearing inner and outer wall panels as prefabricated walls, and is equipped with structural columns, ring beams (high-level ring beams for the outer walls), floor (roof) panels, etc. This technology improves AAC panels, which can only provide enclosure walls or partitions for concrete and steel structures. It can be used for multi-story load-bearing structures and can achieve energy saving, lightweight, crack resistance, fire resistance, earthquake resistance and recovery of new prefabricated structural components. It is assembled on site to become a prefabricated panel structure building, which is a brand-new building system of prefabricated buildings.

[0004] In summary, traditional external wall insulation systems are functionally limited, struggling to balance insulation with fire resistance, waterproofing with weather resistance, and exhibiting significant durability issues, resulting in high overall energy consumption. Low-carbon, energy-saving integrated insulation building envelope systems can achieve the same lifespan as the main structure. However, there is a lack of suitable insulation materials and components that balance safety, durability, and functionality. Furthermore, the application of formwork-free integrated insulation systems in buildings presents challenges in controlling flatness. Utility Model Content

[0005] To address the lack of insulation materials and components that balance safety, durability, and functionality in existing technologies, and the difficulty in controlling the flatness of integrated insulation systems without formwork removal in building applications, the purpose of this utility model is to provide an integrated building structural component of an ultra-thin, large-size UHPC composite Class A fireproof insulation board, whose performance meets the requirements of the standard JG / T 480-2015 "General Technical Requirements for Exterior Wall Insulation Composite Boards".

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides an integrated building structural component for an ultra-thin, large-size UHPC composite Class A fireproof insulation board, comprising, from bottom to top, a Class A fireproof insulation board, an interface adhesive layer, an ultra-thin, large-size UHPC decorative panel, and several double-tail-plate stainless steel connectors, all installed and fixed to the wall; wherein the ultra-thin, large-size UHPC decorative panel and the Class A fireproof insulation board are bonded together by the interface adhesive layer.

[0008] The dual-tail-plate stainless steel connector is located below the ultra-thin large-size UHPC decorative panel and includes a circular stainless steel connector and an anchor plate connector that are matched and fixedly connected to each other. The circular stainless steel connector passes through the Class A fireproof insulation board and extends into the wall, while the anchor plate connector passes through the interface adhesive layer and extends into the circular stainless steel connector to be matched and fixedly connected as a whole.

[0009] Preferably, the stainless steel disc connector includes a connector anchor thread, a Class A fireproof insulation board anchor plate, and Class A fireproof insulation board fixing barbs.

[0010] Preferably, the anchor plate connector includes inner and outer disc connecting threads and an ultra-thin, large-size UHPC decorative panel anchor plate.

[0011] Preferably, the ultra-thin large-size UHPC decorative panel has a thickness of 8mm and a size of 2400mm×1200mm.

[0012] Preferably, the ultra-thin large-size UHPC decorative panel is made of white decorative ultra-high performance concrete with a compressive strength of over 120 MPa.

[0013] Preferably, the thickness of the Class A fireproof insulation board is 55mm.

[0014] Preferably, the Class A fireproof insulation board is a silicon graphene insulation board with double-layer steel wire mesh.

[0015] Preferably, the material of the interface bonding layer is a cement-based interface agent, and the 14d tensile bond strength with the Class A fireproof insulation board is above 0.2MPa.

[0016] Preferably, the number of the double tail disc stainless steel connectors is set at 4 to 6 per square meter.

[0017] Preferably, the diameter of the tail disc of the dual tail disc stainless steel connector is 80mm.

[0018] Compared with existing integrated insulation and decoration panels, the advantages of this utility model are as follows:

[0019] 1. Using UHPC as the decorative panel, UHPC has advantages such as high durability, high strength, and high toughness (compressive strength above 120MPa, bending strength up to 14MPa, and water absorption rate less than 1%), which can significantly improve the service life of components.

[0020] 2. Graphene insulation materials have advantages such as Class A fire resistance, low thermal conductivity (thermal conductivity ≤ 0.052 W / (m·K)), and high tensile and bending strength (tensile strength of vertical plate surface greater than 0.20 MPa, bending load greater than 3000 N). At the same time, they have good compatibility with cement-based materials. They are widely used in the integrated insulation system of cast-in-place concrete structures such as formwork-free and reverse-cast concrete structures in ultra-low energy consumption buildings in hot summer and cold winter regions. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board of this utility model has advantages such as Class A fire resistance, high adhesion, large size (size not less than 1200mm×1800mm), and low thermal conductivity.

[0021] 3. The silicon graphene insulation material in this utility model has good compatibility and strong bonding with UHPC, high-quality inorganic panels and other materials, which can ensure the overall stability of the exterior wall panel. The resulting integrated building structural component can achieve a service life of not less than 50 years for the building envelope, with significant comprehensive benefits. Its performance meets the requirements of JG / T 480-2015 "General Technical Requirements for Exterior Wall Insulation Composite Board". Attached Figure Description

[0022] Figure 1 The attached diagram shows the integrated building structure of the ultra-thin, large-size UHPC composite Class A fireproof insulation board in the embodiment. The reference numerals are as follows: 1-1, stainless steel disc connector; 1-2, anchor plate connector; 1, wall; 2, graphene insulation board; 3, interface bonding layer; 4, ultra-thin, large-size UHPC decorative panel; 5, connector anchor thread; 6, graphene insulation board anchor plate; 7, graphene insulation board fixing barbs; 8, inner and outer disc connecting thread; 9, ultra-thin, large-size UHPC decorative panel anchor plate. Detailed Implementation

[0023] To more fully understand and demonstrate the technical solution, purpose, and advantages of this utility model, the technical effects produced by this utility model will be described in further detail and completely below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. It should be noted that for those skilled in the art, other embodiments obtained without departing from the concept of this utility model are all within the protection scope of this utility model.

[0024] The following embodiments exemplarily describe an integrated building structural component of an ultra-thin, large-size UHPC composite Class A fireproof insulation board, comprising, from bottom to top, a Class A fireproof insulation board, an interface adhesive layer, an ultra-thin, large-size UHPC decorative panel, and several double-tail-plate stainless steel connectors installed and fixed to the wall; wherein the ultra-thin, large-size UHPC decorative panel and the Class A fireproof insulation board are bonded together by the interface adhesive layer; the double-tail-plate stainless steel connectors are located below the ultra-thin, large-size UHPC decorative panel, including a circular stainless steel connector and an anchor plate connector that are matched and fixedly connected to each other, wherein the circular stainless steel connector passes through the Class A fireproof insulation board and extends into the wall, and the anchor plate connector passes through the interface adhesive layer and extends into the circular stainless steel connector to be matched and fixedly connected as one unit.

[0025] In some embodiments, the disc-shaped stainless steel connector includes a connector anchor thread, a Class A fireproof insulation board anchor plate, and Class A fireproof insulation board fixing barbs.

[0026] In some embodiments, the anchor plate connector includes inner and outer disc connecting threads and an ultra-thin, large-size UHPC decorative panel anchor plate.

[0027] In some embodiments, the ultra-thin large-size UHPC veneer panel has a thickness of 8mm and a size of 2400mm × 1200mm.

[0028] In some embodiments, the ultra-thin, large-size UHPC decorative panel is made of white decorative ultra-high performance concrete with a compressive strength of over 120 MPa.

[0029] In some embodiments, the thickness of the Class A fireproof insulation board is 55 mm.

[0030] In some embodiments, the Class A fireproof insulation board is a silicon graphene insulation board with double-layer steel wire mesh.

[0031] In some embodiments, the material of the interface bonding layer is a cement-based interface agent, and the 14-day tensile bond strength with the Class A fireproof insulation board is above 0.2 MPa.

[0032] In some embodiments, the number of dual tailplate stainless steel connectors is set at 4 to 6 per square meter.

[0033] In some embodiments, the tail disc diameter of the dual tail disc stainless steel connector is 80mm.

[0034] Example 1

[0035] This embodiment proposes an integrated building structural component for an ultra-thin, large-size UHPC composite Class A fireproof insulation board, comprising: an ultra-thin, large-size UHPC decorative panel, a Class A fireproof insulation board, and several connectors. An interface agent is applied between the ultra-thin, large-size UHPC decorative panel and the Class A fireproof insulation board to form an interfacial bonding layer. The ultra-thin, large-size UHPC decorative panel is 8mm thick, 2400mm × 1200mm in size, and is made of white decorative ultra-high performance concrete with a compressive strength of over 120MPa. The Class A fireproof insulation board is a 55mm thick silicon graphene insulation board with double-layer steel wire mesh. The interface agent is a cement-based interface agent with a 14-day tensile bond strength of over 0.2MPa with the Class A fireproof insulation board. The connectors are double-tail-plate stainless steel connectors with a tail-plate diameter of 80mm, and the quantity is 4-6 per square meter.

[0036] The preparation method of this integrated building structural component of ultra-thin large-size UHPC composite Class A fireproof insulation board is as follows:

[0037] Accurately weigh the UHPC premix, water, and additives according to the weight ratio;

[0038] Mix water and additives evenly, pour into UHPC premix, stir for 3 minutes, add fiber, and continue stirring for 5 minutes until the slurry is uniform to obtain UHPC mixed slurry;

[0039] Pour the UHPC mixture into the prepared mold and spread it evenly with a brush or roller. This step should be completed within 10 minutes.

[0040] Accurately weigh the interface agent dry mix and water according to the weight ratio, pour the water into the interface agent dry mix, stir for 3 minutes until the slurry is evenly mixed, and obtain the interface agent slurry.

[0041] Apply the interface agent slurry to the insulation board, and then cover the side of the insulation board with the interface agent over the UHPC mixed slurry.

[0042] Use a rubber mallet to evenly tap the back of the insulation board to ensure a firm bond between the insulation board and the UHPC. Place the specimen under natural conditions for 1 day to cure, then remove the mold to obtain the final product.

[0043] The integrated building structure of the aforementioned ultra-thin, large-size UHPC composite Class A fireproof insulation board, when installed on the wall, is as follows: Figure 1 As shown, the system includes a wall 1, a graphene insulation board 2, an interface bonding layer 3, an ultra-thin large-size UHPC decorative panel 4, and matching and fixedly connected circular stainless steel connectors 1-1 and anchor plate connectors 1-2. Circular stainless steel connector 1-1 includes connector anchoring threads 5, a graphene insulation board anchor plate 6, and graphene insulation board fixing barbs 7. Anchor plate connector 1-2 includes inner and outer disc connecting threads 8 and an ultra-thin large-size UHPC decorative panel anchor plate 9. During construction, the circular stainless steel connectors 1-1 are installed on-site. Each product has a threaded plug at one end that protrudes 20-25mm. When installing the anchor plate, the threaded plug is removed, and the ultra-thin large-size UHPC decorative panel anchor plate is tightened. After installation, an integrated structural component is obtained, and its performance test results are shown in Table 1.

[0044] Table 1

[0045]

[0046]

[0047] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An integrated building structural component of an ultra-thin, large-size UHPC composite Class A fireproof and heat-insulating board, characterized in that, The device includes, from bottom to top, a Class A fireproof insulation board, an interface adhesive layer, an ultra-thin large-size UHPC decorative panel, and several double-tail-plate stainless steel connectors, all installed and fixed to the wall. The ultra-thin large-size UHPC decorative panel is bonded to the Class A fireproof insulation board through the interface adhesive layer. The dual-tail-plate stainless steel connector is located below the ultra-thin large-size UHPC decorative panel and includes a circular stainless steel connector and an anchor plate connector that are matched and fixedly connected to each other. The circular stainless steel connector passes through the Class A fireproof insulation board and extends into the wall, while the anchor plate connector passes through the interface adhesive layer and extends into the circular stainless steel connector to be matched and fixedly connected as a whole.

2. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board according to claim 1, characterized in that, The circular stainless steel connector includes a connector anchor thread, a Class A fireproof insulation board anchor plate, and Class A fireproof insulation board fixing barbs.

3. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board according to claim 1, characterized in that, The anchor plate connector includes inner and outer disc connecting threads and an ultra-thin, large-size UHPC decorative panel anchor plate.

4. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board according to claim 1, characterized in that, The ultra-thin, large-size UHPC decorative panel has a thickness of 8mm and dimensions of 2400mm × 1200mm.

5. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board according to claim 1, characterized in that, The ultra-thin, large-size UHPC decorative panel is made of white decorative ultra-high performance concrete with a compressive strength of over 120 MPa.

6. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board according to claim 1, characterized in that, The thickness of the Class A fireproof insulation board is 55mm.

7. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board according to claim 1, characterized in that, The Class A fireproof insulation board is a silicon graphene insulation board with double-layer steel wire mesh.

8. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board according to claim 1, characterized in that, The material of the interface bonding layer is a cement-based interface agent, and its 14-day tensile bond strength with the Class A fireproof insulation board is above 0.2 MPa.

9. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board according to claim 1, characterized in that, The number of the double tailplate stainless steel connectors is set at 4 to 6 per square meter.

10. The integrated building structural component of the ultra-thin large-size UHPC composite Class A fireproof insulation board according to claim 1, characterized in that, The diameter of the tail disc of the dual tail disc stainless steel connector is 80mm.

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