Anti-crack autoclaved aerated block

Abstract

The utility model relates to the technical field of aerated blocks, in particular to an anti-crack autoclaved aerated block which comprises an upper building block and a lower building block, a plurality of anti-crack fiber layers are arranged between the upper building block and the lower building block, and a building block middle layer is filled between every two adjacent anti-crack fiber layers. And a limiting pipe column penetrates through the anti-crack fiber layers of the upper building block and the lower building block and the middle building block layer. According to the utility model, a tight anti-crack structure can be formed, the formed aerated block is lighter, and the pouring process is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pressurized blocks, in particular to an anti-cracking autoclaved aerated block. Background Art

[0002] Autoclaved aerated concrete blocks are a new type of wall material. They are porous silicate blocks made by adding aluminum powder as an aerating agent to calcareous and siliceous materials. The blocks are then mixed with water, cast into shape, expanded with aeration, pre-cured and cut, and then cured with high-pressure steam. Existing autoclaved aerated concrete blocks, due to their high strength, sometimes require tapping to align them with the wall surface during stacking. This is typically done with a trowel, which can easily cause cracks or even breakage in the blocks, damaging the overall autoclaved aerated structure.

[0003] Chinese patent CN 219548140 U discloses a crack-resistant autoclaved aerated block, comprising an upper block, which is cast on the top of a lower block. The lower block is provided with two sets of wide side grooves by filling a fiber frame. The wide side grooves are provided with multiple long side grooves at the edges of the adjacent two sides, and the long side grooves are equidistantly provided between the wide side grooves. The fibers are used to assist the wall reinforcement to form a stable structure of the bricks and a high-toughness composite material with the toughness of the fibers, thereby reducing the possibility of cracks when being hammered and aligned after autoclaving.

[0004] However, the above technical solution still has the following drawbacks: in actual application, it was found that the internal fiber-filled frame still has a solid structure between the wide and long side grooves, which is still prone to cracking. Therefore, further improvement and innovation of this technology is needed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an anti-cracking autoclaved aerated block, which can form a strict anti-cracking structure, and the formed aerated block is lighter and the casting process is more convenient.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The utility model provides an anti-cracking autoclaved aerated block, comprising an upper block and a lower block, wherein a plurality of anti-cracking fiber layers are arranged between the upper block and the lower block, and a block middle layer is filled between two adjacent anti-cracking fiber layers; and a limiting pipe column is arranged through the upper block, the lower block anti-cracking fiber layers and the block middle layer.

[0008] Furthermore, the anti-cracking fiber layer includes a steel wire mesh sheet and a glass fiber cloth attached to the steel wire mesh sheet.

[0009] Furthermore, the steel wire mesh sheet is in a corrugated shape, and the glass fiber cloth is attached to the steel wire mesh sheet in a corrugated shape.

[0010] Furthermore, the side length of each grid of the steel wire mesh is 2-4 cm.

[0011] Furthermore, the distance between two adjacent anti-cracking fiber layers is 2-3.5 cm.

[0012] Furthermore, the hollow diameter of each of the limiting tube columns is 0.8-1.2 cm, and the distance between two adjacent limiting tube columns is 8-10 cm.

[0013] Beneficial effects of the utility model:

[0014] When pouring the aerated block, concrete is first poured into the mold to cast the lower block, the mold rod of the limiting pipe column is inserted, and the anti-cracking fiber layer is laid on the surface of the lower block. After solidification, the middle layer of the block is poured, and the anti-cracking fiber layer is continued to be laid. After repeating the above operation several times, the upper block is poured. After solidification, the water molecules in the concrete are dissipated and absorbed by the anti-cracking fiber layer, causing the anti-cracking fiber layer to expand and condense with the concrete to form a high-toughness composite material, thereby reducing the occurrence of cracks during use after autoclaving and aeration treatment, and obtaining an aerated block with better anti-cracking effect; the limiting pipe column is used to assist in the laying of the limiting anti-cracking fiber layer during pouring. After the aerated block is formed, its hollow structure can be used to reduce the weight of the aerated block. The aerated block can also provide a certain expansion elastic area during autoclaving. The utility model can form a strict anti-cracking structure, the formed aerated block is lighter, and the pouring process is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the exploded structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0017] Figure 3 For this utility model Figure 2 A is an enlarged structural diagram.

[0018] Figure 4 This is a schematic diagram of the bottom-up structure of the wavy anti-cracking fiber layer of the present invention. DETAILED DESCRIPTION

[0019] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to examples and drawings. Specific implementation methods of the present invention will be described below. It should be noted that in the specific description of these implementation methods, for the sake of clarity and clarity, it is impossible for this specification to provide a detailed description of all features of the actual implementation methods.

[0020] refer to Figures 1 to 4 As shown, the utility model provides an anti-cracking autoclaved aerated block, which is characterized in that it includes an upper building block 1 and a lower building block 2, a plurality of anti-cracking fiber layers 3 are arranged between the upper building block 1 and the lower building block 2, and a building block middle layer 4 is filled between two adjacent layers of the anti-cracking fiber layers 3; a limiting pipe column 5 is provided through the upper building block 1, the anti-cracking fiber layer 3 of the lower building block 2 and the building block middle layer 4.

[0021] In this embodiment, when pouring the aerated block, concrete is first poured into the mold to cast the lower block 2, the mold rod of the limiting pipe column 5 is inserted, and the anti-cracking fiber layer 3 is laid on the surface of the lower block 2. After solidification, the middle layer 4 of the block is poured, and the anti-cracking fiber layer 3 is continued to be laid. After repeating the above operation several times, the upper block 1 is poured. After solidification, the water molecules in the concrete are absorbed by the anti-cracking fiber layer 3, causing the anti-cracking fiber layer 3 to expand and solidify with the concrete to form a high-toughness composite material, thereby reducing the occurrence of cracks during use after autoclaving and aeration treatment, resulting in an aerated block with better crack resistance. The limiting pipe column 5 is used to assist in the laying of the limiting anti-cracking fiber layer 3 during pouring. After the aerated block is formed, its hollow structure can be used to reduce the weight of the aerated block. The aerated block can also provide a certain expansion elastic area during autoclaving. The aerated block can form a strict anti-cracking structure, the formed aerated block is lighter, and the pouring process is more convenient.

[0022] refer to Figure 3 As shown, the anti-cracking fiber layer 3 includes a steel wire mesh sheet 31 and a glass fiber cloth 32 attached to the steel wire mesh sheet 31; in this embodiment, the steel wire mesh sheet 31 is used to facilitate the processing of the anti-cracking fiber layer 3 into any shape, which is more practical and can enhance the strength of the overall structure of the aerated block. The glass fiber cloth 32 has a low expansion coefficient and good toughness, which makes the overall anti-cracking effect of the aerated block stronger.

[0023] refer to Figure 3 and 4 As shown, the steel wire mesh sheet 31 is corrugated, and the glass fiber cloth 32 is attached to the steel wire mesh sheet 31 in a corrugated shape. In this embodiment, the steel wire mesh sheet 31 is processed into a corrugated shape, and when pouring concrete, a mold pressing sheet of the same specification is used to press the corrugation on the concrete surface in advance. After removing the mold pressing sheet, the steel wire mesh sheet 31 is placed on the pressed concrete surface, and the corrugation directions of the two adjacent layers of steel wire mesh sheets 31 are placed crosswise. The use of a corrugated structure helps the anti-cracking fiber layer 3 to better integrate into the concrete, and the anti-cracking effect is stronger.

[0024] refer to Figure 4 As shown, the side length of each grid of the steel wire mesh sheet 31 is 2-4 cm. In this embodiment, the side length of the grid is controlled to be between 2-4 cm, and the overall structural toughness of the steel wire mesh sheet 31 is stronger.

[0025] refer to Figure 4 As shown, the distance between two adjacent anti-cracking fiber layers 3 is 2-3.5 cm. In this embodiment, based on experimental research and actual usage, it is concluded that the distance between two adjacent anti-cracking fiber layers 3 is controlled to be 2-3.5 cm, which can effectively control the cost while ensuring the anti-cracking strength of the aerated block.

[0026] refer to Figure 4 As shown, the hollow diameter of each limiting pipe column 5 is 0.8-1.2 cm, and the distance between two adjacent limiting pipe columns 5 is 8-10 cm; in this embodiment, the limiting pipe column 5 is cast and demoulded using a mold rod, and the hollow diameter of each limiting pipe column 5 is 0.8-1.2 cm. When the distance between two adjacent limiting pipe columns 5 is 8-10 cm, the strength and crack resistance of the aerated block are best.

[0027] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A crack-resistant autoclaved aerated block, characterized in that: It comprises an upper building block (1) and a lower building block (2), wherein a plurality of anti-cracking fiber layers (3) are provided between the upper building block (1) and the lower building block (2), and a building block middle layer (4) is filled between two adjacent layers of the anti-cracking fiber layers (3); A limiting pipe column (5) is provided through the upper building block (1), the anti-cracking fiber layer (3) of the lower building block (2) and the building block middle layer (4).

2. The anti-cracking autoclaved aerated block according to claim 1, characterized in that: The anti-cracking fiber layer (3) comprises a steel wire mesh sheet (31) and a glass fiber cloth (32) attached to the steel wire mesh sheet (31).

3. The anti-cracking autoclaved aerated block according to claim 2, characterized in that: The steel wire mesh sheet (31) is in a corrugated shape, and the glass fiber cloth (32) is attached to the steel wire mesh sheet (31) in a corrugated shape.

4. The anti-cracking autoclaved aerated block according to claim 2, characterized in that: The side length of each grid of the steel wire mesh sheet (31) is 2-4 cm.

5. The anti-cracking autoclaved aerated block according to claim 1, characterized in that: The distance between two adjacent anti-cracking fiber layers (3) is 2-3.5 cm.

6. The anti-cracking autoclaved aerated block according to claim 1, characterized in that: The hollow diameter of each of the limiting tube columns (5) is 0.8-1.2 cm, and the distance between two adjacent limiting tube columns (5) is 8-10 cm.

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