Concrete aerated brick
By introducing a multi-layer structure and fireproof and moisture-proof layers into aerated concrete blocks, the problems of fire resistance and moisture-proofing are solved, the safety and waterproof performance of aerated concrete blocks are improved, and a longer service life and construction convenience are achieved.
Patent Information
- Application Number
- CN202520370758.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing aerated concrete blocks have poor fire resistance and moisture resistance, making them brittle and prone to water seepage in fires, resulting in insufficient safety and waterproofing.
Based on aerated concrete blocks, a moisture-proof layer and a fireproof layer are added, including a multi-layer structure such as a vapor barrier membrane, a thermal insulation layer, a waterproof and breathable membrane, a silicate fireproof board, an EPS foam board, and a polyurethane foam board. A water-proof coating and a silicate cement layer are applied to the surface to enhance fireproof and moisture-proof performance.
It significantly improves the fire resistance and moisture resistance of aerated concrete blocks, enhances the structural stability and safety of the blocks, and increases their service life and ease of construction.
Smart Images

Figure CN223880613U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building material technology field, specifically, it relates to a concrete aerated brick. BACKGROUND
[0002] The aerated brick is the aerated concrete block produced through high-temperature autoclaved equipment process, and a large number of closed pores are uniformly distributed in the aerated brick, so that the aerated brick has good processing performance, can be nailed and drilled, brings great convenience and flexibility to construction, and is widely applied to building walls due to the light weight and environmental protection characteristics.
[0003] The existing concrete aerated brick has high porosity, so that the aerated brick has poor fire resistance, in the process of building fire, if the aerated brick is ablated for a long time, the brick structure is easily fragmented and separated, so that the wall is damaged or even collapsed, and the safety is low; if the aerated brick is used outside, the waterproof and moisture-proof effect is not very ideal, and rainwater is easily immersed into the cavity. UTILITY MODEL CONTENTS
[0004] In view of the defects in the prior art, the utility model aims at providing a concrete aerated brick, which increases the moisture-proof layer and the fireproof layer on the basis of the aerated concrete layer, greatly improves the moisture-proof and fireproof effects of the aerated brick.
[0005] The above technical purpose of the utility model is realized through the following technical scheme: a concrete aerated brick, which comprises a brick main body, the brick main body is of a rectangular structure, opposite two ends of the brick main body are respectively provided with fixed holes, the fixed holes are semicircular, the brick main body has a multilayer structure, the multilayer structure is sequentially provided with a first moisture-proof layer, a fireproof layer, a shock-absorbing layer, a sound insulation layer, an aerated concrete layer and a second moisture-proof layer, the surface of the brick main body is further coated with a water-proof coating layer, the first moisture-proof layer comprises a vapor barrier film, a heat preservation layer and a waterproof and breathable film which are sequentially bonded, the heat preservation layer is made of light weight heat preservation material, and the first moisture-proof layer and the second moisture-proof layer are symmetrically arranged.
[0006] The utility model is further provided as follows: the fireproof layer is a silicate fireproof plate, the silicate fireproof plate is rectangular, the surface of the silicate fireproof plate is further coated with fireproof paint, and the two surfaces of the fireproof layer are respectively bonded with the first moisture-proof layer and the shock-absorbing layer; the shock-absorbing layer is an EPS foam plate, and the sound insulation layer bonded with one surface of the shock-absorbing layer is a polyurethane foam plastic plate.
[0007] The utility model is further provided as follows: the surface of the aerated concrete layer is coated with a silicate cement layer, the thickness of the silicate cement layer is 2-5mm, and the thickness of the aerated concrete layer is 10-50mm.
[0008] The utility model further sets up: four corner parts of the brick main part are provided with sink head bolt respectively, the sink head bolt in proper order penetrates first moisture proof layer, fireproof layer, shock attenuation layer, sound insulation layer, aerated concrete layer and second moisture proof layer.
[0009] The utility model further sets up: still be equipped with a steel drill on the brick main part, the steel drill is cylindrical, at least a part of steel drill extends into the fixed hole, the fixed hole on adjacent two brick main parts wraps a steel drill therein, the outer wall of steel drill and the inner wall of fixed hole contact when using.
[0010] The utility model further sets up: the both ends of brick main part are provided with recess, the recess is formed by recessing inwards from the surface of brick main part, the recess is arc-shaped, the recess width is not less than 3cm.
[0011] In conclusion, the utility model has following beneficial effects: the outer surface of rectangular structure's brick main part is smooth and flat, and is convenient for stacking and splicing, through setting up multilayer structure on the brick main part, the brick main part realizes multiple effects, especially solve the moistureproof and fireproof effect of brick main part, and it is favorable for improving the service life and safety of brick main part, the steel drill is used for fixing adjacent two aerated bricks, and the firmness of aerated brick during use is improved, the recess set on the opposite ends of brick main part is convenient for manual gripping and lifting aerated bricks. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the whole structure schematic view of the utility model;
[0013] Figure 2 It is the section structure schematic view of the utility model;
[0014] Figure 3 It is the steel drill structure schematic view of the utility model.
[0015] In the drawing: 1, brick main part, 2, fixed hole, 3, first moisture proof layer, 4, fireproof layer, 5, shock attenuation layer, 6, sound insulation layer, 7, aerated concrete layer, 8, second moisture proof layer, 9, steel drill. DETAILED DESCRIPTION
[0016] The utility model is described in detail below in combination with the drawings and examples.
[0017] As Figure 1 , Figure 2As shown, the utility model relates to a kind of aerated concrete bricks, including the brick main body 1 of rectangular structure, the brick main body 1 is provided with multiple layers, multiple layer structure provides multiple use effects for the brick main body 1, the application scene and cost-effective of brick main body 1 are improved, the multiple layer structure of brick main body 1 includes sequentially connected first moisture-proof layer 3, fireproof layer 4, shock-absorbing layer 5, sound insulation layer 6, aerated concrete layer 7 and second moisture-proof layer 8,And the surface of brick main body 1 is also evenly coated with water-repellent coating, the thickness of this water-repellent coating is 1-1.6mm, the two sides of brick main body 1 facing outside are respectively provided with symmetrical first moisture-proof layer 3 and second moisture-proof layer 8, two layers of moisture-proof layer are all by sequentially bonded vapor barrier, thermal insulation layer and waterproof breathable membrane, the thermal insulation layer is made of lightweight thermal insulation material, two layers of moisture-proof layer cooperate with water-repellent coating to effectively prevent rainwater, moisture from penetrating into the interior of brick main body 1, prevent the security problem caused by water seepage.
[0018] As Figure 2 As shown, fireproof layer 4 is provided on the inner side of first moisture-proof layer 3, and the fireproof layer 4 is a silicate fireproof plate. The silicate fireproof plate has good fireproof and heat insulation capacity, and also has certain effect on heat insulation and energy saving. In the technical solution, the surface of the fireproof layer 4 is uniformly coated with a layer of fireproof paint, which further improves the fireproof effect of the fireproof layer 4, is conducive to improving the fire protection effect of the aerated brick, and improves the safety of the building. One side of the fireproof layer 4 is a shock-absorbing layer 5. The shock-absorbing layer 5 is made of EPS foam board, which can improve the shock resistance of the aerated brick. The other side of the shock-absorbing layer 5 is connected to a sound insulation layer 6. The sound insulation layer 6 is a polyurethane foam plastic board. The polyurethane foam plastic board has sound insulation and warm-keeping effects, which is conducive to improving the sound insulation performance and warm-keeping capacity of the brick main body 1. The aerated concrete layer 7, as the main load-bearing structure of the aerated brick, has a thickness of 10-50 mm, which can ensure the strength of the aerated brick. The surface of the aerated concrete layer 7 is also coated with a layer of silicate cement layer, which can improve the corrosion resistance of the aerated concrete layer 7. The thickness of the silicate cement layer is 2 mm. After sequentially bonding the multiple layer structure, a countersunk bolt is penetrated through the four corner parts of the brick main body 1. The countersunk bolt further fastens the layers of structure, which can further improve the strength of the aerated brick.
[0019] As Figure 3 As shown, when in use, multiple aerated bricks are stacked to form a wall body. After two adjacent aerated bricks are tightly attached together, the semicircular fixing holes 2 on the two aerated bricks form a circular hole. Then a steel drill 9 is inserted into the circular hole to assist the fixation of the aerated bricks. When the aerated bricks need to be carried, a hand is inserted into the grooves at the two ends of the aerated brick, which is convenient for lifting the aerated brick.
[0020] The above merely is preferred implementation manner of the present application, the protection scope of the present application is not only limited to the above examples, and belongs to the technical scheme under the idea of the present application all belongs to the protection scope of the present application. It should be pointed out that, for ordinary skilled person in the art, under the premise of not departing from the principle of the present application, some improvements and decorations, these improvements and decorations should also be considered as the protection scope of the present application.
Claims
1. An aerated concrete block comprising a block body (1), characterised in that: The brick body (1) is of rectangular structure, opposite ends of the brick body (1) are respectively provided with fixing holes (2), the fixing holes (2) are semicircular, the brick body (1) has a multilayer structure, the multilayer structure is sequentially provided with a first moisture-proof layer (3), a fireproof layer (4), a shock-absorbing layer (5), a sound insulation layer (6), an aerated concrete layer (7) and a second moisture-proof layer (8), the surface of the brick body (1) is further coated with a waterproof coating, the first moisture-proof layer (3) comprises a vapor barrier film, a thermal insulation layer and a waterproof and breathable film which are sequentially bonded, the thermal insulation layer is made of light thermal insulation material, and the first moisture-proof layer (3) and the second moisture-proof layer (8) are symmetrically arranged.
2. The aerated concrete block according to claim 1, wherein: The fireproof layer (4) is a silicate fireproof plate, the silicate fireproof plate is rectangular, the surface of the silicate fireproof plate is further coated with fireproof paint, and the two surfaces of the fireproof layer (4) are bonded with the first moisture-proof layer (3) and the shock-absorbing layer (5) respectively, the shock-absorbing layer (5) is an EPS foam board, and the sound insulation layer (6) bonded with one surface of the shock-absorbing layer (5) is a polyurethane foam plastic plate.
3. The aerated concrete block according to claim 2, wherein: The surface of the aerated concrete layer (7) is coated with a silicate cement layer, the thickness of the silicate cement layer is 2-5 mm, and the thickness of the aerated concrete layer (7) is 10-50 mm.
4. The aerated concrete block according to claim 1, wherein: Four corner parts of the brick body (1) are respectively provided with countersunk bolts, the countersunk bolts sequentially penetrate the first moisture-proof layer (3), the fireproof layer (4), the shock-absorbing layer (5), the sound insulation layer (6), the aerated concrete layer (7) and the second moisture-proof layer (8).
5. The aerated concrete block according to claim 1, wherein: The brick body (1) is further provided with a steel drill (9), the steel drill (9) is cylindrical, at least a part of the steel drill (9) extends into the fixing hole (2), the fixing holes (2) of adjacent two brick bodies (1) wrap a steel drill (9) therein, and the outer wall of the steel drill (9) is in contact with the inner wall of the fixing hole (2) in use.
6. The aerated concrete block according to claim 1, wherein: The two ends of the brick body (1) are provided with grooves, the grooves are formed by recessing inward from the surface of the brick body (1), the grooves are arc-shaped, and the groove width is not less than 3 cm.