A type of aerated concrete block

Abstract

This utility model discloses an aerated concrete block, belonging to the field of building materials technology. An aerated concrete block includes a block body and further includes: multiple sets of trapezoidal protrusions disposed on the top of the block body, the multiple sets of trapezoidal protrusions being equidistantly arranged along the length direction of the block body; trapezoidal grooves adapted to the trapezoidal protrusions being disposed at the bottom of the block body; multiple sets of dovetail grooves symmetrically formed on the length direction side of the block body, the multiple sets of dovetail grooves being arranged in a rectangular array; and multiple sets of triangular protrusions symmetrically formed on the width direction side of the block body. This utility model, through the setting of trapezoidal protrusions and trapezoidal grooves, can achieve the interlocking connection of the upper and lower block bodies, increasing the contact area between them, significantly improving the bonding strength between the block bodies and the integrity of the wall, and effectively reducing wall cracking and deformation.

Description

Technical Field

[0001] This utility model relates to the field of building materials technology, and in particular to an aerated concrete block. Background Technology

[0002] Autoclaved aerated concrete (AAC) blocks are a lightweight, porous silicate building material made by steam curing aluminum powder under high temperature and pressure. They have significant advantages such as light weight, excellent thermal insulation, good fire resistance, good sound insulation, and strong workability. They are widely used in non-load-bearing interior and exterior walls, low-rise load-bearing walls, and parts with high requirements for thermal insulation and fire resistance in various buildings. They are an important wall material in modern energy-saving buildings.

[0003] Autoclaved aerated concrete (AAC) blocks are manufactured using an autoclaving process: First, siliceous materials, calcareous materials, water, and a foaming agent are mixed into a slurry, which is then poured into a mold. Aluminum powder reacts in an alkaline environment to release hydrogen gas, causing the slurry to expand and form a porous structure. After standing and solidifying, the blocks are cut into blanks and then placed in a high-temperature, high-pressure autoclave for 8-12 hours of curing. After being removed from the autoclave and inspected, they become finished products, possessing lightweight, heat-insulating, and fire-resistant properties.

[0004] Existing technologies have certain problems, such as limited bonding area between blocks and between blocks and mortar, which easily leads to weak bonding, resulting in poor overall wall integrity and insufficient crack resistance; traditional blocks have right-angled edges and corners, making them prone to damage during transportation and construction, affecting the quality of masonry; positioning blocks during construction is difficult, easily leading to misalignment, increasing construction difficulty and reducing efficiency; during construction and handling, the smooth sides of the blocks can cause workers to slip, posing a safety hazard, and blocks may also slip when placed on the mortar layer, affecting masonry accuracy. Therefore, we urgently need an aerated concrete block to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of poor bonding performance, easy damage to edges and corners, difficulty in construction positioning, and easy slippage of the sides of existing aerated concrete blocks, and to propose an aerated concrete block.

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

[0007] An aerated concrete block includes a block body and further includes: multiple sets of trapezoidal protrusions disposed on the top of the block body, the multiple sets of trapezoidal protrusions being equidistantly arranged along the length direction of the block body, and a trapezoidal groove adapted to the trapezoidal protrusions being disposed at the bottom of the block body; multiple sets of dovetail grooves symmetrically opened on the length direction side of the block body, and the multiple sets of dovetail grooves being arranged in a rectangular array; and multiple sets of triangular protrusions symmetrically opened on the width direction side of the block body.

[0008] To improve the interlocking connection between the upper and lower blocks, preferably, the upper base length of the trapezoidal boss is in the range of 30mm-40mm, the lower base length is in the range of 40mm-50mm, the height is in the range of 10mm-15mm, and the distance between two adjacent trapezoidal bosses is in the range of 50mm-60mm.

[0009] To improve the bonding performance between the block body and the mortar, preferably, the bottom of the dovetail groove is provided with a concave block, and the height of the concave block is in the range of 3mm-5mm.

[0010] To increase the contact area between the block body and the mortar, the opening width of the dovetail groove is 20mm-25mm, the bottom width is 30mm-35mm, the depth is 15mm-20mm, and the distance between two adjacent dovetail grooves in the longitudinal direction is 60mm-70mm.

[0011] To increase the friction on the sides, preferably, the height of the triangular protrusion is in the range of 8mm-12mm, the length of the base is in the range of 15mm-20mm, and the protrusion of the triangular protrusion faces the top of the block body.

[0012] To reduce the risk of bumps and knocks during transportation, preferably, all four corners of the block body are rounded, with the radius of the rounded corners ranging from 5mm to 8mm.

[0013] To enable rapid positioning of the blocks, preferably, the blocks are provided with symmetrical positioning holes for fitting positioning pins.

[0014] Compared with the prior art, the present invention provides an aerated concrete block with the following advantages:

[0015] 1. The aerated concrete block, through the setting of trapezoidal protrusions and trapezoidal grooves, can realize the interlocking connection of the upper and lower block bodies, increase the contact area between the two, significantly improve the bonding strength between the block bodies and the integrity of the wall, and effectively reduce the cracking and deformation of the wall.

[0016] 2. The aerated concrete block, through the setting of dovetail grooves and concave blocks, can significantly increase the contact area and mechanical interlocking force between the block body and the mortar. The concave blocks allow the sand and gravel in the mortar to be better embedded, which improves the bonding performance between the block body and the mortar and enhances the shear resistance and stability of the wall.

[0017] 3. The aerated concrete block, with its triangular protrusions, effectively increases the friction on the sides. When manually handling the block, the increased friction between the hand and the sides provides an anti-slip effect, reducing safety hazards during handling. Simultaneously, during construction, the triangular protrusions embed into the mortar layer, increasing the resistance between the block and the mortar, reducing block slippage, and improving construction accuracy.

[0018] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model increases the contact area and mechanical interlocking force with mortar through the design of trapezoidal bosses and trapezoidal grooves, dovetail grooves on the front and rear sides, and concave blocks at the bottom of the grooves, thereby improving the bonding strength. The four corners are rounded to reduce the probability of damage from bumps during transportation and construction. With the help of the positioning holes, the insertion of positioning pins can achieve quick and accurate positioning, improving construction efficiency. The triangular protrusions increase friction, reducing safety hazards during handling and slippage during masonry, and ensuring construction accuracy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an aerated concrete block proposed in this utility model;

[0020] Figure 2 This is a front view structural diagram of an aerated concrete block proposed in this utility model;

[0021] Figure 3 This is a partial structural diagram of an aerated concrete block proposed in this utility model. Figure 1 ;

[0022] Figure 4 This is a partial structural diagram of an aerated concrete block proposed in this utility model. Figure 2 .

[0023] In the diagram: 1. Block body; 2. Trapezoidal boss; 3. Trapezoidal groove; 4. Dovetail groove; 5. Triangular protrusion; 6. Concave block; 7. Rounded corner; 8. Positioning hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example:

[0027] Reference Figures 1-4 An aerated concrete block includes a block body 1, with rounded corners 7 at all four corners of the block body 1, the radius of which is 5mm-8mm. The block body 1 is symmetrically provided with positioning holes 8 for fitting positioning pins. Here, the positioning holes 8 are used to insert positioning pins during the masonry process to assist in positioning, so that the block body 1 can be positioned quickly and accurately, improving the masonry efficiency and ensuring the flatness and verticality of the wall.

[0028] It should be noted that the radius of the rounded corner 7 is preferably 6mm. By setting the rounded corner 7, the probability of the block body 1 being damaged by bumps during transportation, stacking and construction can be reduced, thereby improving the integrity rate of the block and reducing material waste.

[0029] It also includes multiple sets of trapezoidal protrusions 2 set on the top of the block body 1. The multiple sets of trapezoidal protrusions 2 are arranged at equal intervals along the length direction of the block body 1. The bottom of the block body 1 is provided with trapezoidal grooves 3 that are adapted to the trapezoidal protrusions 2. The upper base length of the trapezoidal protrusion 2 is in the range of 30mm-40mm, the lower base length is in the range of 40mm-50mm, the height is in the range of 10mm-15mm, and the distance between two adjacent trapezoidal protrusions 2 is in the range of 50mm-60mm.

[0030] Here, the dimensions of the trapezoidal groove 3 correspond one-to-one with the trapezoidal protrusion 2, ensuring that the two adjacent blocks 1 can accurately interlock during construction.

[0031] It should be noted that the upper base length of the trapezoidal protrusion 2 is preferably 35mm, the lower base length is preferably 45mm, and its height is preferably 12mm. The distance between two adjacent trapezoidal protrusions 2 is preferably 55mm. Since the trapezoidal groove 3 needs to be adapted to the trapezoidal protrusion 2, the size of the trapezoidal groove 3 is consistent with that of the trapezoidal protrusion 2. Under this size, the interlocking connection of the upper and lower block bodies 1 can be realized, increasing the contact area between the two, significantly improving the bonding strength between the block bodies 1 and the integrity of the wall, and effectively reducing the cracking and deformation of the wall.

[0032] Multiple sets of dovetail grooves 4 are symmetrically opened on the longitudinal side of the block body 1, and the multiple sets of dovetail grooves 4 are arranged in a rectangular array. The bottom of the dovetail groove 4 is provided with a concave block 6, and the height of the concave block 6 is 3mm-5mm. The opening width of the dovetail groove 4 is 20mm-25mm, the width of the bottom of the groove is 30mm-35mm, the depth is 15mm-20mm, and the distance between two adjacent dovetail grooves 4 in the longitudinal direction is 60mm-70mm.

[0033] Here, the dovetail grooves 4 are arranged in a rectangular array. Since the wall mainly bears the load in the vertical direction, the dovetail grooves 4 distributed along the rectangular array can enable the mortar to form a more effective mechanical interlocking force in the vertical direction, resisting the vertical shear force of the wall under its own weight and external loads. At the same time, it is convenient to fill and control the fullness of the mortar during construction. The concave blocks 6 can be hemispherical or square. The concave blocks 6 can further increase the contact area between the dovetail grooves 4 and the mortar. When the mortar is filled, it will be embedded in the concave blocks 6 to form a better mechanical interlocking structure, thereby improving the contact with the sand and gravel in the mortar and enhancing the bonding effect.

[0034] It should be noted that the opening width of the dovetail groove 4 is preferably 22mm, the bottom width is preferably 32mm, the depth is preferably 18mm, the distance between two adjacent dovetail grooves 4 in the length direction is preferably 65mm, and the height of the concave block 6 is preferably 4mm. Under these dimensions, the contact area and mechanical interlocking force between the block body 1 and the mortar can be greatly increased. The concave block 6 allows the sand and gravel in the mortar to be better embedded, which improves the bonding performance between the block body 1 and the mortar and enhances the shear resistance and stability of the wall.

[0035] Multiple sets of triangular protrusions 5 are symmetrically opened on the width side of the block body 1. The height of the triangular protrusions 5 ranges from 8mm to 12mm, the length of the base ranges from 15mm to 20mm, and the protrusions of the triangular protrusions 5 face the top of the block body 1.

[0036] Here, the height of the triangular protrusion 5 is preferably 10mm, the length of the base is preferably 18mm, and the distance between two adjacent triangular protrusions 5 is preferably 90mm. Under these dimensions, the triangular protrusion 5 can effectively increase the friction on the side. When manually handling the block body 1, the friction between the hand and the side increases, which has an anti-slip effect and reduces the safety hazards during handling. At the same time, during the masonry process, the triangular protrusion 5 can be embedded in the mortar layer, which increases the resistance between the block body 1 and the mortar layer, reduces the occurrence of slippage of the block body 1, and improves the masonry accuracy.

[0037] It should be noted that the triangular protrusion 5 does not affect the splicing between the block bodies 1, and further increases the contact area between the block bodies 1 and the surrounding mortar, indirectly improving the overall stability of the wall.

[0038] In this utility model, during the construction preparation stage, the appearance quality of the block body 1 should be checked to ensure that there are no obvious cracks or missing corners. After cleaning the surface dust and debris of the block body 1 and preparing auxiliary materials and tools such as positioning pins and masonry mortar, the base treatment should be carried out.

[0039] During the base treatment stage, the wall axis, edge line and elevation control line are marked on the surface of the masonry base. The base is leveled according to the lines to ensure that the base is flat and firm. At this time, the mortar laying process is carried out. A layer of masonry mortar with a uniform thickness is laid on the base. The thickness of the mortar is controlled at 20-30mm and the spreading area is slightly larger than the bottom area of ​​the masonry block.

[0040] Next, place the first block body 1 on the mortar layer and adjust its position according to the control line so that the positioning hole 8 on the block body 1 is aligned with the axis. Insert the positioning pin into the positioning hole 8, with the length of the positioning pin protruding from the top surface of the block being half the depth of the positioning hole 8. Place the second block body 1, aligning the bottom trapezoidal groove 3 with the top trapezoidal protrusion 2 of the block body 1 below. At the same time, place the side of the block body 1 close to the positioning pin to ensure accurate positioning. During the masonry process, gently tap the top surface of the block with a rubber mallet to ensure that the mortar fully fills the gaps at the bottom and sides of the block, ensuring mortar fullness. After the block body 1 is assembled, fill the dovetail groove 4 opened in the block body 1 with mortar, ensuring that the mortar fills the dovetail groove 4 and is tightly combined with the concave block 6 at the bottom of the groove. A small shovel can be used to assist in compaction during the filling process. Then, continue to build layer by layer. After the masonry is completed, clean the excess mortar from the surface and grout the mortar joints to ensure that the mortar joints are flat and smooth.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An aerated concrete block comprising a block body (1), characterised in that, Also includes: Multiple trapezoidal protrusions (2) are provided on the top of the block body (1). The multiple trapezoidal protrusions (2) are arranged at equal intervals along the length direction of the block body (1). The bottom of the block body (1) is provided with trapezoidal grooves (3) that are compatible with the trapezoidal protrusions (2). Multiple sets of dovetail grooves (4) are symmetrically opened on the side of the block body (1) along the length direction, and the multiple sets of dovetail grooves (4) are arranged in a rectangular array; Multiple sets of triangular protrusions (5) are symmetrically opened on the width side of the block body (1).

2. The aerated concrete block according to claim 1, characterized in that, The upper base length of the trapezoidal boss (2) ranges from 30mm to 40mm, the lower base length ranges from 40mm to 50mm, the height ranges from 10mm to 15mm, and the distance between two adjacent trapezoidal bosses (2) ranges from 50mm to 60mm.

3. An aerated concrete block according to claim 1, characterized in that, The bottom of the dovetail groove (4) is provided with a concave block (6), and the height of the concave block (6) is in the range of 3mm-5mm.

4. An aerated concrete block according to claim 3, characterized in that, The opening width of the dovetail groove (4) is 20mm-25mm, the width of the groove bottom is 30mm-35mm, the depth is 15mm-20mm, and the distance between two adjacent dovetail grooves (4) in the length direction is 60mm-70mm.

5. An aerated concrete block according to claim 1, characterized in that, The height of the triangular protrusion (5) ranges from 8mm to 12mm, the length of the base ranges from 15mm to 20mm, and the protrusion of the triangular protrusion (5) faces the top of the block body (1).

6. An aerated concrete block according to claim 1, characterized in that, The four corners of the block body (1) are all provided with rounded corners (7), and the radius of the rounded corners (7) is in the range of 5mm-8mm.

7. An aerated concrete block according to claim 1, characterized in that, The block body (1) is symmetrically provided with positioning holes (8) for fitting positioning pins.

Images