CN107619260B

CN107619260B - Light building brick

Info

Publication number: CN107619260B
Application number: CN201710941862.8A
Authority: CN
Inventors: 倪敬国; 王建兵; 胡宏武
Original assignee: Anhui Hengchuang Environmental Protection Building Materials Co ltd
Current assignee: Anhui Hengchuang Environmental Protection Building Materials Co ltd
Priority date: 2017-10-11
Filing date: 2017-10-11
Publication date: 2020-11-24
Anticipated expiration: 2037-10-11
Also published as: CN107619260A

Abstract

The invention discloses a light building brick, which comprises a brick body, wherein the brick body comprises the following raw material components in parts by weight: 20-30 parts of fly ash, 10-20 parts of rubber powder, 10-20 parts of mullite fiber, 10-15 parts of straw powder, 20-30 parts of waste argil, 10-15 parts of ceramsite, 10-15 parts of waste glass slag, 10-15 parts of waste ceramic slag and 10-15 parts of waste clay brick. The invention has the advantages that: light weight, high strength and convenient use.

Description

Light building brick

Technical Field

The invention relates to the technical field of building materials, in particular to a light building brick.

Background

With the increase of environmental awareness, people tend to use lightweight bricks. However, most of the lightweight bricks have the defect of low strength. Therefore, how to increase the strength of the brick body on the premise of keeping the light weight is always one of the key points of the light-weight brick research. Meanwhile, how to produce by means of the existing kiln body is also one of the key points of attention.

Disclosure of Invention

The invention aims to provide a light building brick which has the characteristics of light weight, high strength and convenience in use.

The technical scheme adopted by the invention is as follows: the light building brick comprises a brick body,

the brick comprises the following raw material components in parts by weight: 20-30 parts of fly ash, 10-20 parts of rubber powder, 10-20 parts of mullite fiber, 10-15 parts of straw powder, 20-30 parts of waste clay, 10-15 parts of ceramsite, 10-15 parts of waste glass slag, 10-15 parts of waste ceramic slag and 10-15 parts of waste clay brick;

the preparation method comprises the following steps:

1) adding water accounting for 10-20% of the total weight of the components into the fly ash, the rubber powder, the mullite fiber, the straw powder, the waste argil and the ceramsite, and mixing and stirring uniformly to prepare a first brick blank;

2) uniformly stirring the waste glass slag, the waste ceramic slag and the waste clay bricks to form a mixture, adhering the mixture to the outer surface of the first green brick, pressing the mixture by adopting a flat plate object, and embedding the mixture on the outer surface of the first green brick to form a second green brick;

3) digging an upper pit on the upper side surface of the second green brick, digging a lower pit on the lower side surface of the second green brick, wherein the upper pit is matched with the lower pit, a vertical metal strip is pre-embedded in the upper pit, and the upper end of the metal strip is positioned above the upper side surface of the second green brick, so that a third green brick is formed;

4) and placing the third green brick into a tunnel kiln, firing according to a conventional mode, taking out of the kiln, and cooling at normal temperature for at least 12 hours to form the finished product of the light building brick.

And a spiral groove is formed in the outer surface of the metal strip.

The upper concave pit and the lower concave pit respectively comprise a cylindrical cavity body positioned on the inner side and a conical cavity body positioned on the outer side.

Compared with the prior art, the invention has the advantages that: light weight, high strength and convenient use. The lightweight building brick of the invention better solves the problem of recycling waste products and well reduces the weight of products by introducing materials such as fly ash, rubber powder, waste argil, ceramsite and the like. Meanwhile, the straw powder can be spontaneously combusted after being heated, and then micropores can be formed in the product and on the surface of the product, so that the weight of the product is further reduced, the heat insulation and sound insulation performance of the product is effectively improved, the balance of the internal temperature and the external temperature of the brick body during preparation is ensured, and the strength of the brick body is enhanced. And the rubber powder can be melted and solidified after being heated, so that the internal strength of the product is enhanced, and the product strength is also enhanced by the larger particles positioned on the surface of the product. In addition, the unique appearance of the product enables adjacent light bricks to be combined well after being built by cement, so that the built wall also has higher strength.

Drawings

The invention is further illustrated with reference to the following figures and examples:

fig. 1 is a front sectional view of an embodiment of the present invention.

In the figure:

10. the brick comprises a brick body 11, an upper pit 12, a lower pit 101, a cylindrical cavity 102 and a conical cavity;

20. a metal strip.

Detailed Description

Example, see figure 1: a light building brick includes a brick body 10.

Specifically, the method comprises the following steps:

the brick body 10 comprises the following raw material components in parts by weight: 20-30 parts of fly ash, 10-20 parts of rubber powder, 10-20 parts of mullite fiber, 10-15 parts of straw powder, 20-30 parts of waste argil, 10-15 parts of ceramsite, 10-15 parts of waste glass slag, 10-15 parts of waste ceramic slag and 10-15 parts of waste clay brick. For example, 20 parts of fly ash, 10 parts of rubber powder, 10 parts of mullite fiber, 10 parts of straw powder, 20 parts of waste argil, 10 parts of ceramsite, 10 parts of waste glass slag, 10 parts of waste ceramic slag and 10 parts of waste clay brick; or 25 parts of fly ash, 15 parts of rubber powder, 15 parts of mullite fiber, 12 parts of straw powder, 25 parts of waste argil, 13 parts of ceramsite, 12 parts of waste glass slag, 13 parts of waste ceramic slag and 12 parts of waste clay brick; or 30 parts of fly ash, 20 parts of rubber powder, 20 parts of mullite fiber, 15 parts of straw powder, 30 parts of waste argil, 15 parts of ceramsite, 15 parts of waste glass slag, 15 parts of waste ceramic slag and 15 parts of waste clay brick. Wherein the overall dimensions of the waste glass slag, the waste ceramic slag and the waste clay brick are all 3-5 mm. Namely, the narrowest part of the waste glass slag, the waste ceramic slag and the waste clay brick is not less than 3mm, and the widest part is not more than 5 mm.

The preparation method of the light building brick comprises the following steps:

1) adding water accounting for 10-20% of the total weight of the components into the fly ash, the rubber powder, the mullite fiber, the straw powder, the waste argil and the ceramsite, and mixing and stirring uniformly to prepare a first brick blank. For example, the water addition amount is 10%, 15% or 20% of the total weight of the fly ash, the rubber powder, the mullite fiber, the straw powder, the waste argil and the ceramsite.

2) The method comprises the steps of uniformly stirring waste glass slag, waste ceramic slag and waste clay bricks to form a mixture, adhering the mixture to the outer surface of a first green brick, pressing the mixture by adopting a flat plate object, and embedding the mixture on the outer surface of the first green brick to form a second green brick. Namely, the waste glass slag, the waste ceramic slag and the waste clay brick do not protrude out of the outer surface of the first adobe. In order to supplement holes which are possibly formed when the waste glass slag, the waste ceramic slag and the waste clay bricks are pressed, the holes can be supplemented by adopting a mixture formed by the fly ash, the rubber powder, the mullite fiber, the straw powder, the waste argil and the ceramsite.

3) An upper recess 11 is dug in the upper side of the second green brick and a lower recess 12 is dug in the lower side of the second green brick. The upper and

lower recesses

11, 12 are matched. That is, when the lightweight brick is used for wall building, the upper pits 11 and the lower pits 12 can be aligned. Vertical metal strips 20 are embedded in the upper concave pits 11, and the upper ends of the metal strips 20 are positioned above the upper side surfaces of the second green bricks. Thus, a third green brick is formed.

4) And placing the third green brick into a tunnel kiln, firing according to a conventional mode, taking out of the kiln, and cooling at normal temperature for at least 12 hours to form the finished product of the light building brick. The conventional firing method refers to a firing process of common clay bricks or a firing process of common light bricks. For example, firing is carried out in a tunnel kiln at 800-1200 ℃ for 3 h.

Optimizing:

the metal strip 20 is provided with a spiral groove (not shown) on its outer surface.

Each of the upper and

lower dimples

11 and 12 includes a cylindrical cavity 101 on the inner side and a conical cavity 102 on the outer side. The inner side refers to a side close to the center of the brick body 10, and the outer side refers to a side far from the center of the brick body 10. That is, the upper pit 11 includes a cylindrical cavity 101 at a lower portion and a conical cavity 102 at an upper portion, and the lower pit 12 includes a cylindrical cavity 101 at an upper portion and a conical cavity 102 at a lower portion.

The strength of the light building brick of the present invention is at least 80% of that of a clay brick using the same firing process through practical tests, but the density of the light building brick of the present invention is at most 20% of that of a clay brick using the same firing process. That is, the strength can be fully satisfied with the use requirement, but the weight is greatly reduced. Meanwhile, when the light brick for building is used for building a wall, cement enters the corresponding upper pit 11 and the lower pit 12 to form an integral cement block, the metal strip 20 is arranged in the cement block, and the cylindrical cavity 101 enables the cement block to be tightly combined with the upper pit 11 or the lower pit 12, so that the integrity of the wall is stronger.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. Light building brick, including the brick body (10), its characterized in that:

the brick body (10) comprises the following raw material components in parts by weight: 20-30 parts of fly ash, 10-20 parts of rubber powder, 10-20 parts of mullite fiber, 10-15 parts of straw powder, 20-30 parts of waste clay, 10-15 parts of ceramsite, 10-15 parts of waste glass slag, 10-15 parts of waste ceramic slag and 10-15 parts of waste clay brick;

the preparation method comprises the following steps:

adding water accounting for 10-20% of the total weight of the components into the fly ash, the rubber powder, the mullite fiber, the straw powder, the waste argil and the ceramsite, and mixing and stirring uniformly to prepare a first brick blank;

uniformly stirring the waste glass slag, the waste ceramic slag and the waste clay bricks to form a mixture, adhering the mixture to the outer surface of the first green brick, pressing the mixture by adopting a flat plate object, and embedding the mixture on the outer surface of the first green brick to form a second green brick;

digging an upper pit (11) on the upper side surface of the second green brick, digging a lower pit (12) on the lower side surface of the second green brick, wherein the upper pit (11) is matched with the lower pit (12), a vertical metal strip (20) is pre-embedded in the upper pit (11), and the upper end of the metal strip (20) is positioned above the upper side surface of the second green brick, so that a third green brick is formed;

and placing the third green brick into a tunnel kiln, firing according to a conventional mode, taking out of the kiln, and cooling at normal temperature for at least 12 hours to form the finished product of the light building brick.

2. The lightweight building brick according to claim 1, wherein: the outer surface of the metal strip (20) is provided with a spiral groove.

3. The lightweight building brick according to claim 1, wherein: the upper pit (11) and the lower pit (12) respectively comprise a cylindrical cavity (101) positioned on the inner side and a conical cavity (102) positioned on the outer side.