CN211775032U

CN211775032U - Aerated concrete building block

Info

Publication number: CN211775032U
Application number: CN202020061511.5U
Authority: CN
Inventors: 李小华; 曾智; 王艳; 刘星; 方清清
Original assignee: Hunan Institute of Engineering
Current assignee: Hunan Institute of Engineering
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-10-27
Anticipated expiration: 2030-01-13

Abstract

The utility model provides an aerated concrete block, including rectangular bodily form's building block body, its length, width and height are a, b, c respectively, are equipped with a plurality of shrinkage pools on the terminal surface with building block body's direction of height vertically, and the shrinkage pool is the indent in the blind hole of place terminal surface, and the direction of depth of shrinkage pool is on a parallel with building block body's direction of height, has placed the humidifying material in the shrinkage pool, and the volume of humidifying material is half to two-thirds of shrinkage pool volume. The utility model discloses the problem of the coefficient of heat conductivity increase that leads to because the high hygroscopicity of aerated concrete block has been alleviated.

Description

Aerated concrete building block

Technical Field

The utility model relates to a building block field for the building wall specifically is an aerated concrete block.

Background

The aerated concrete block is a novel building material which is light, porous, heat-insulating, good in fireproof performance, nailable, sawable, planeable and has certain shock resistance. The existing aerated concrete block has high hygroscopicity, and in the actual engineering application, the heat conductivity coefficient of the aerated concrete block is increased due to the high hygroscopicity of the aerated concrete block, so that the building energy consumption is increased.

SUMMERY OF THE UTILITY MODEL

The above-mentioned problem to prior art exists, the utility model aims at providing an alleviate the aerated concrete block that the coefficient of heat conductivity that leads to because the high hygroscopicity of aerated concrete block increases.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

the utility model provides an aerated concrete block, includes rectangular bodily form's building block body, and its length, width and height are a, b, c respectively, are equipped with a plurality of shrinkage pools on the terminal surface with building block body's direction of height vertically, and the shrinkage pool is the blind hole of indent in place terminal surface, and the direction of depth of shrinkage pool is on a parallel with building block body's direction of height, has placed the humidifying material in the shrinkage pool, and the volume of humidifying material is half to two-thirds of shrinkage pool volume.

As a further improvement of the above technical solution:

the humidity regulating material is bamboo charcoal or charcoal.

The concave hole is cylindrical, the radius of the cylindrical shape is d, and d is more than or equal to 0.02a and less than or equal to 0.03 a.

The radius d of the cylinder is 15 mm.

The depth of the concave hole is h, and h is more than or equal to c/2 and less than or equal to 2 c/3.

h＝2c/3。

The plurality of concave holes are arranged in two rows in parallel, the plurality of concave holes in each row are arranged at even intervals, and the arrangement direction is parallel to the length direction of the building block body.

Each row is provided with 3-5 concave holes.

The distance between two adjacent concave holes of each row of concave holes is e, and e is more than or equal to 0.12a and less than or equal to 0.13 a.

The distance between the concave holes and the front side face is f1, and f1 is not more than d; the distance between the concave holes in the other row and the rear side face is f2, d is not less than f2, and the front side face and the rear side face are two end faces perpendicular to the width direction of the building block body.

Compared with the prior art, the beneficial effects of the utility model are that: the bamboo charcoal and/or the charcoal in the concave hole absorbs the moisture in the aerated concrete block, so that the increase of the heat conductivity coefficient caused by the high hygroscopicity of the aerated concrete block is relieved, and the heat conductivity coefficient of the block is further reduced due to the arrangement of the concave hole; when the outdoor temperature is higher, the bamboo charcoal and/or the charcoal absorbs heat and releases moisture for recycling.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic perspective view of an embodiment of the present invention;

fig. 3 is a schematic side view of an embodiment of the present invention;

fig. 4 is a schematic top view of an embodiment of the present invention.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

An autoclaved aerated concrete block, as shown in fig. 1-4, comprises a cuboid block body 1, the length, width and height of which are a, b and c respectively, preferably, a is 2b, b is c. In this embodiment, the length a of the block body 1 is 600mm, the width b is 300mm, and the height c is 300 mm.

Six sides defining the block body 1 are respectively a top side, a bottom side, a front side, a rear side, a left side and a right side. The top surface and the bottom surface are opposite, and the top surface and the bottom surface are two end surfaces perpendicular to the height direction of the building block body 1, namely two side lengths of the top surface or the bottom surface are a and b respectively. The front side face and the rear side face are opposite, the front side face and the rear side face are two end faces perpendicular to the width direction of the building block body 1, namely two side lengths of the front side face or the rear side face are a and c respectively. The left side face and the right side face are opposite, the left side face and the right side face are two end faces perpendicular to the length direction of the building block body 1, namely the two side lengths of the left side face and the right side face are b and c respectively.

Based on the definition, the top surface is provided with a plurality of concave holes 2, the concave holes 2 are blind holes which are inwards concave to the end surface, the depth direction of the concave holes 2 is parallel to the height direction of the building block body 1, the depth of the concave holes 2 is h, and then, c/2 is not less than h and not more than 2 c/3.

In the present embodiment, the depth h of the concave hole 2 is 2 c/3.

The concave hole 2 is cylindrical, the radius of the cylindrical shape is d, and d is more than or equal to 0.02a and less than or equal to 0.03 a.

In this embodiment, the radius of the cylinder is 15 mm.

The humidity control material 3 is placed in the concave hole 2, and the volume of the humidity control material 3 is one half to two thirds of the volume of the concave hole 2.

In this example, the humidity control material 3 is bamboo charcoal or charcoal.

In this embodiment, a plurality of shrinkage pool 2 are two rows of parallel arrangement, and every row of a plurality of shrinkage pool 2 is even interval arrangement, and the direction of arrangement is on a parallel with the length direction of building block body 1.

Each row is provided with 3-5 concave holes 2. The distance between two adjacent concave holes 2 is e, and e is more than or equal to 0.12a and less than or equal to 0.13 a.

Two rows of recesses 2 are located adjacent to the front and rear sides, respectively, as shown in figure 3. Specifically, the distance f1 between the concave holes 2 and the front side surface is not more than d, namely the distance between the concave holes 2 and the front side surface is not more than the diameter of the concave holes 2; the distance f2 between the concave holes 2 in the other row and the back side surface is not more than d, namely the distance between the concave holes 2 in the other row and the back side surface is not more than the diameter of the concave holes 2. This arrangement facilitates the moisture-controlling material 3 in the recessed hole 2 to absorb moisture that is about to intrude into the block.

It should be noted that, the whole compression failure process of analysis concrete block brickwork test piece, the bight, upper surface and the lower surface of building block shrinkage pool 2 are the weak link of brickwork's atress, and the crack mainly develops in these three regions. The stress at the corner of the concave hole 2 is complex, and stress concentration is easy to generate to form a failure surface. The shrinkage pool 2 is when big more, then concrete block is in the atress in-process, produces stress concentration point more easily, in other words, when shrinkage pool 2 is big more, stress concentration leads to shrinkage pool 2 to bear the easy breakage of pressure increase for building block intensity greatly reduced. Therefore, if the volume of the concave hole 2 is too large, namely the hole diameter is too large and/or the depth is too large, the overall strength of the building block is reduced; if the size of the block is too small, the humidity control material 3 is not convenient to place, and the humidity control effect of the block is affected. The size, the number and the position of the concave holes 2 ensure that the overall strength of the building block meets the building requirements, and enough humidity control materials 3 can be placed to meet the humidity control requirements of the building block. The humidity control material 3 is not filled in the concave hole 2, but a certain surplus space is reserved, so that when two adjacent building blocks are bonded, a certain space is provided for bonding materials such as slurry and the like, and the bonding strength and the firmness are improved.

The manufacturing steps of the aerated concrete block comprise: a. mixing the cementing materials to prepare a mixture; b. adding water into aluminum powder paste and a foam stabilizer to prepare suspension; c. dissolving water glass in water, and uniformly stirring; d. c, pouring the solution obtained in the step c into the mixture, and stirring to obtain slurry; e. adding the suspension into the slurry, and stirring to obtain slurry with uniform consistency; f. pouring the slurry into a mold for casting and molding; g. gas generation and pre-curing, drying and demoulding; h. performing hot-wet curing on the demolded blank to obtain a finished building block; i. drilling ten cylindrical holes with the depth of 2/3 on the top surface of the finished building block; j. putting charcoal and bamboo charcoal into the cylindrical hole to complete the production.

The aerated concrete block mainly comprises steel slag, slag and cement, wherein the cement is a mixture of Portland cement and calcium aluminate cement.

When the aerated concrete block is used in a high-humidity area, moisture absorbed by the aerated concrete block can be absorbed into bamboo charcoal or charcoal, and the increase of the heat conductivity coefficient of the block due to high hygroscopicity of a common aerated concrete block is reduced. When the outdoor temperature is higher, the bamboo charcoal and the charcoal absorb heat and release moisture, so that the cyclic regeneration is achieved. When the outdoor temperature is higher, the moisture in the aerated concrete is gradually reduced, and the water vapor evaporation capacity is enhanced.

Finally, it must be said here that: the above embodiments are only used for further detailed description of the technical solutions of the present invention, and should not be understood as limiting the scope of the present invention, and the modifications and adjustments made by those skilled in the art according to the above-mentioned contents of the present invention are all included in the scope of the present invention.

Claims

1. The utility model provides an aerated concrete block, including rectangular bodily form's building block body (1), its length, width and height are a respectively, b, c, a serial communication port, be equipped with a plurality of shrinkage pools (2) on the direction of height vertically terminal surface with building block body (1), shrinkage pool (2) are the blind hole of indent in place terminal surface, the direction of depth of shrinkage pool (2) is on a parallel with the direction of height of building block body (1), humidifying material (3) have been placed in shrinkage pool (2), the volume of humidifying material (3) is half to two-thirds of shrinkage pool (2) volume.

2. An aerated concrete block according to claim 1, wherein: the humidity conditioning material (3) is bamboo charcoal or charcoal.

3. An aerated concrete block according to claim 1, wherein: the concave hole (2) is cylindrical, the radius of the cylindrical shape is d, and d is more than or equal to 0.02a and less than or equal to 0.03 a.

4. An aerated concrete block according to claim 3, wherein: the radius d of the cylinder is 15 mm.

5. An aerated concrete block according to claim 3, wherein: the depth of the concave hole (2) is h, and h is more than or equal to c/2 and less than or equal to 2 c/3.

6. An aerated concrete block according to claim 5, wherein: h is 2 c/3.

7. An aerated concrete block according to claim 3, wherein: a plurality of shrinkage pool (2) are two rows of parallel arrangement, and every row of a plurality of shrinkage pool (2) even interval arrangement, and the direction of array is on a parallel with the length direction of building block body (1).

8. An aerated concrete block according to claim 7 wherein: each row is provided with 3-5 concave holes (2).

9. An aerated concrete block according to claim 7 wherein: the distance between two adjacent concave holes (2) of each row of concave holes (2) is e, and e is more than or equal to 0.12a and less than or equal to 0.13 a.

10. An aerated concrete block according to claim 7 wherein: the distance between the concave holes (2) and the front side surface is f1, and d is more than or equal to f 1; the distance between the concave holes (2) in the other row and the rear side surface is f2, d is more than or equal to f2, and the front side surface and the rear side surface are two end surfaces which are perpendicular to the width direction of the building block body (1).