Hollow aerated concrete slab covered with thermal insulation layer and processing method of hollow aerated concrete slab

Abstract

The invention discloses a hollow aerated concrete slab covered with a heat preservation layer and a processing method thereof, and belongs to the technical field of building assembly and heat preservation, the hollow aerated concrete slab comprises a base layer plate and an internal heat preservation plate, a closed cavity is formed in the base layer plate, the internal heat preservation plate is arranged in the cavity of the base layer plate, a mesh cage is further arranged in the base layer plate, and the mesh cage is arranged in the cavity of the base layer plate. And the outer side of the cavity is coated with the mesh cage. The wall on the outer side of the cavity of the base plate is an outer page plate, and the wall on the inner side of the cavity of the base plate is an inner page plate; the mesh cage is characterized in that the base plate is provided with sinking grooves in the length direction and the width direction respectively, external heat preservation plates are arranged in the sinking grooves, the sinking grooves are formed along the peripheral edge of the base plate and located on the inner side or the outer side of the surface of the base plate, and the sinking grooves are located on the outer side of the side edge of the mesh cage. Compared with the prior art, the insulation board has the characteristics of blocking cold bridges and enhancing the insulation effect.

Description

Technical Field

[0001] The invention relates to the technical field of building assembly and thermal insulation, in particular to a hollow aerated concrete board covered with a thermal insulation layer and a processing method thereof. Background Art

[0002] Autoclaved aerated concrete panels have won wide recognition and application in the domestic construction industry for their excellent lightweight characteristics and small deformation ability, as well as their significant thermal insulation effects. This type of panel not only reduces the overall weight of the building, but also greatly improves the building's energy efficiency, making an important contribution to energy conservation and emission reduction. However, with the increasing standards for thermal insulation and energy conservation in society, traditional autoclaved aerated concrete panels that rely only on a single material have gradually shown their limitations and are difficult to meet more stringent thermal insulation and energy conservation requirements.

[0003] In order to overcome this challenge, the industry has begun to explore the composite application of autoclaved aerated concrete panels and organic thermal insulation materials, which is seen as an effective way to improve the performance of panels and achieve efficient utilization. Among them, polyurethane and other foaming materials are poured into the internal cavity of autoclaved aerated concrete panels to form thermal insulation panels, which constitutes an efficient and economical thermal insulation solution. With its excellent thermal insulation performance and closed-cell structure, polyurethane foam materials effectively enhance the thermal insulation capacity of the overall panel, making this composite material show great potential in the field of thermal insulation.

[0004] However, in practical applications, this type of hollow structure also faces the test of structural safety. In order to ensure the stability and load-bearing capacity of the board, reinforcing ribs are often required around the cavity to resist deformation and damage under external forces. However, the setting of reinforcing ribs will undoubtedly occupy the space originally used for insulation materials, which will have an adverse effect on the insulation effect. Especially in the context of the continuous improvement of insulation and energy-saving standards, in order to achieve the ideal insulation effect, it is often necessary to increase the thickness of the hollow insulation board. However, excessively thick exterior wall panels will not only increase material costs, but may also exceed design limits and fail to meet the requirements of architectural aesthetics and economy. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies of the above prior art and provide a hollow aerated concrete board covered with an insulation layer and a processing method thereof, so as to achieve the purpose of blocking cold bridges and enhancing the insulation effect.

[0006] The present invention provides a hollow aerated concrete board covered with an insulation layer, comprising a base plate and an internal insulation board, wherein a closed cavity is provided inside the base plate, an internal insulation board is provided inside the cavity of the base plate, a mesh cage is also provided inside the base plate, and the mesh cage is coated on the outside of the cavity, and the mesh cage is wrapped with autoclaved aerated concrete material. The wall outside the cavity of the base plate is an outer page board, and the wall inside is an inner page board; the characteristic is that: the base plate is provided with sinking grooves along the length direction and the width direction, respectively, and an external insulation board is provided in the sinking grooves, the sinking grooves are arranged along the peripheral edge of the base plate, and are located on the inner side or outer side of the surface of the base plate, and the sinking grooves are located on the outer side of the side edge of the mesh cage.

[0007] Furthermore, the internal insulation board is made of a polyurethane foam board or a phenolic foam board or other foam insulation materials.

[0008] Furthermore, the internal insulation board is made of phenolic foam or other organic foaming materials. Furthermore, reinforcing ribs are provided between the cavities of the base plate, and a thermal insulation and waterproof layer is provided on the inner wall of the cavity of the base plate and on the outer wall of the reinforcing ribs.

[0009] Furthermore, the sink groove is arranged outside the surface of the base plate where the reinforcing rib is located.

[0010] Furthermore, a protective layer is provided on the outer side of the external insulation board, the protective layer is flush with the board surface of the base board, and the sink is fixedly connected to the external insulation board and the protective layer by means of adhesive anchoring.

[0011] Furthermore, the width of the sink groove is connected with or covers the edge of the cavity of the base plate, and the depth of the sink groove does not exceed the thickness of the inner page plate or the outer page plate.

[0012] Furthermore, the sink groove is an L-shaped sink groove, which runs through the peripheral edge of the base plate, and the outer side of the L-shaped sink groove is an open structure.

[0013] Furthermore, the sink groove is located on the inner side of the peripheral edge of the base plate, and the two adjacent sink grooves are connected along the peripheral edge of the base plate.

[0014] Furthermore, the sink groove is located on the inner side of the peripheral edge of the base plate, and the two adjacent sink grooves are disconnected along the peripheral edge of the base plate.

[0015] A processing method based on covering an external insulation board with a hollow aerated concrete board, characterized in that: Step 1: Process the external insulation board into strips, the width of which is the same as or slightly smaller than the width of the sink; Step 2: Use a saw blade to cut a groove along the perimeter of the base plate. The depth of the groove is 20~100mm. The depth of the groove shall not exceed the thickness of the inner or outer plate. The width of the groove is 50~100mm. The width is opened to the outside of the steel mesh cage, but the force-bearing and distribution bars of the steel mesh cage shall not be damaged. Step 3: Clean the dust in the trough and apply or spray the interface agent in the trough; Step 4: Apply bonding mortar in the sink to fix the insulation board; Step 5: Apply interface agent on both sides of the prepared external insulation board; Step 6: Use anchor bolts to fix the external insulation board in the sink. Each external insulation board should have no less than 2 anchor bolts.

[0016] Step 7: Apply anti-cracking mortar on the surface of the external insulation board, and then press it into the mesh cloth. One side of the mesh cloth should be pressed over the gap between the external insulation board and the base board by no less than 50mm, and the folded edge on the other side should be pressed over the external insulation board and cover the gap by no less than 20mm.

[0017] Compared with the prior art, the present invention has the following outstanding beneficial effects: The present invention arranges a sink groove around the base plate, and arranges an external insulation board in the sink groove, thereby avoiding the existence of cold bridges and greatly improving the insulation performance; thereby reducing the thickness of the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of embodiment 1 of the present invention; Figure 2 is a schematic diagram of the internal structure of Embodiment 1 of the present invention; Figure 3 is a schematic structural diagram of Embodiment 2 of the present invention; Figure 4 is a schematic diagram of the internal structure of Embodiment 2 of the present invention; Figure 5 is a schematic structural diagram of Embodiment 2 of the present invention; Figure 6 is a schematic diagram of the internal structure of Embodiment 2 of the present invention; Among them, 1. Base board; 2. External insulation board; 3. Internal insulation board. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] like Figure 1 and 2 As shown, the present invention comprises a base board, an inner insulation board and an outer insulation board.

[0021] The base plate has a closed cavity inside, an internal insulation board inside the cavity, a mesh cage inside the base plate, and the mesh cage covers the outside of the cavity. The wall outside the cavity of the base plate is the outer page board, and the wall inside is the inner page board.

[0022] The internal insulation board is made of polyurethane insulation material.

[0023] In the optimization scheme, the base plate cavity is provided with reinforcing ribs, which are arranged longitudinally along the cavity of the base plate, and a thermal insulation and waterproof layer is provided on the inner wall of the cavity of the base plate and on the outer wall of the reinforcing ribs.

[0024] The reinforcing ribs of the base plate are replaced by reinforcing columns.

[0025] The base plate is provided with grooves along the length and width directions respectively, and an external insulation board is arranged in the groove. The grooves are arranged along the peripheral edge of the base plate and are located on the inner or outer side of the surface of the base plate. The grooves are located on the outer side of the side edge of the mesh cage.

[0026] The sink grooves are not only arranged around the periphery of the base plate, but are also arranged outside the surface of the base plate where the reinforcing ribs are located.

[0027] A protective plate is provided on the outer side of the external insulation board, and the protective plate is flush with the board surface of the base board. The sink is fixedly connected to the external insulation board and the protective plate by means of adhesive anchoring.

[0028] The width of the sink groove is connected to or covers the edge of the cavity of the base plate, and the depth of the sink groove does not exceed the thickness of the inner page plate or the outer page plate.

[0029] In Example 1, the sink groove is an L-shaped sink groove, which runs through the peripheral edge of the base plate, and the outer side of the L-shaped sink groove is an open structure.

[0030] like Figure 2 and 3 As shown, in Example 2, the sink groove is located on the inner side of the peripheral edge of the base plate, and the two adjacent sink grooves are connected along the peripheral edge of the base plate.

[0031] like Figure 4 and 6 As shown, in Example 3, the sink groove is located on the inner side of the peripheral edge of the base plate, and the two adjacent sink grooves are disconnected along the peripheral edge of the base plate.

[0032] A processing method for covering an external insulation board with a hollow aerated concrete board: 1. Process the external insulation board into strips with a width equal to or slightly smaller than the width of the sink; 2. Use a saw blade to cut a groove along the periphery of the base plate. The depth of the groove is 20~100mm. The depth of the groove shall not exceed the thickness of the inner or outer page plate. The width of the groove is 50~100mm. The width is opened to the outside of the steel mesh cage, but the force-bearing and distribution bars of the steel mesh cage shall not be damaged. 3. Clean the dust in the trough and apply or spray the interface agent in the trough; 4. Apply bonding mortar in the sink to fix the insulation board; 5. Apply interface agent on both sides of the prepared external insulation board; 6. Use anchor bolts to fix the external insulation board in the sink. Each external insulation board should have no less than 2 anchor bolts. 7. Apply the anti-cracking mortar on the surface of the external insulation board, and then press it into the mesh cloth. One side of the mesh cloth should be pressed over the gap between the external insulation board and the base board by no less than 50mm, and the folded edge on the other side should be pressed over the external insulation board and cover the gap by no less than 20mm.

[0033] In the optimization scheme, in step 7, apply bonding mortar on the surface of the external insulation board, press the processed cement calcium silicate board onto the bonding mortar, and use plastic anchor bolts to fix the protective board to the wallboard. The surface of the calcium silicate board is 2-5 mm lower than the surface of the wallboard. Step 8. Apply anti-cracking mortar on the surface of the calcium silicate board, press the mesh cloth into the mortar, with one side of the mesh cloth exceeding the gap by no less than 50mm, and the other end pressing over the side and exceeding the gap between the external insulation board and the wall panel by no less than 20mm. Also use anti-cracking mortar to stick the mesh cloth to the wall panel.

[0034] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes to the present invention without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. A hollow aerated concrete board covered with an insulation layer, comprising a base plate and an internal insulation plate, wherein the base plate is provided with a closed cavity inside, the cavity of the base plate is provided with an internal insulation plate, and a mesh cage is also provided inside the base plate, and the mesh cage is covered on the outside of the cavity. The outer wall of the cavity of the base plate is an outer page plate, and the inner wall is an inner page plate; the characteristics are: The base plate is provided with grooves along the length and width directions respectively, and an external insulation board is arranged in the groove. The grooves are arranged along the peripheral edge of the base plate and are located on the inner or outer side of the surface of the base plate. The grooves are located on the outer side of the side edge of the mesh cage.

2. The hollow aerated concrete board covered with a thermal insulation layer according to claim 1, characterized in that: The internal heat-insulating board is made of polyurethane foam board or phenolic foam board or other foam heat-insulating materials.

3. The hollow aerated concrete board covered with a thermal insulation layer according to claim 1, characterized in that: The base plate cavity is provided with reinforcing ribs, and the inner wall of the base plate cavity and the outer wall of the reinforcing ribs are both provided with thermal insulation and waterproof layers.

4. The hollow aerated concrete board covered with a thermal insulation layer according to claim 3, characterized in that: The sink groove is arranged on the outer side of the surface of the reinforcing rib corresponding to the base plate.

5. The hollow aerated concrete board covered with a thermal insulation layer according to claim 1, characterized in that: A protective layer is provided on the outer side of the external insulation board, and the protective layer is flush with the board surface of the base board. The sink is fixedly connected to the external insulation board and the protective board by means of adhesive anchoring.

6. The hollow aerated concrete board covered with a thermal insulation layer according to claim 5, characterized in that: The width of the sink groove is connected with or covers the edge of the cavity of the base plate, and the depth of the sink groove does not exceed the thickness of the inner page plate or the outer page plate.

7. The hollow aerated concrete board covered with a thermal insulation layer according to claim 1, characterized in that: The sinking groove is an L-shaped sinking groove, which runs through the peripheral edge of the base plate, and the outer side of the L-shaped sinking groove is an open structure.

8. The hollow aerated concrete board covered with a thermal insulation layer according to claim 1, characterized in that: The sink grooves are located on the inner side of the peripheral edge of the base plate, and the two adjacent sink grooves are connected along the peripheral edge of the base plate.

9. The hollow aerated concrete board covered with a thermal insulation layer according to claim 1, characterized in that: The sink grooves are located on the inner side of the peripheral edge of the base plate, and the two adjacent sink grooves are disconnected along the peripheral edge of the base plate.

10. A processing method based on covering an external insulation board with a hollow aerated concrete board, characterized in that: Step 1: Process the external insulation board into strips, the width of which is the same as or slightly smaller than the width of the sink; Step 2: Use a saw blade to cut a groove along the perimeter of the base plate. The depth of the groove is 20~100mm. The depth of the groove shall not exceed the thickness of the inner or outer plate. The width of the groove is 50~100mm. The width is opened to the outside of the steel mesh cage, but the force-bearing and distribution bars of the steel mesh cage shall not be damaged. Step 3: Clean the dust in the trough and apply or spray the interface agent in the trough; Step 4: Apply bonding mortar in the sink to fix the insulation board; Step 5: Apply interface agent on both sides of the prepared external insulation board; Step 6: Use anchor bolts to fix the external insulation board in the sink. Each external insulation board should have no less than 2 anchor bolts. Step 7: Apply anti-cracking mortar on the surface of the external insulation board, and then press it into the mesh cloth. One side of the mesh cloth should be pressed over the gap between the external insulation board and the base board by no less than 50mm, and the folded edge on the other side should be pressed over the external insulation board and cover the gap by no less than 20mm.

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