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Method of utilizing shales to produce aerated hollow brick

A technology of hollow bricks and shale, which is applied in the field of preparing aerated hollow bricks from shale, which can solve the problems of large amount of shale, and achieve the effect of solving the problem of site occupation, light bulk density and high strength

Active Publication Date: 2014-03-19
安徽中龙建材科技有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method of using shale to prepare aerated hollow bricks. The amount of shale is large, which can alleviate the problems caused by shale storage and treatment, and at the same time provide a new source of raw materials for hollow bricks.

Method used

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  • Method of utilizing shales to produce aerated hollow brick

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Embodiment Construction

[0021] A method for preparing air-entraining hollow bricks from shale is carried out according to the following steps:

[0022] (1) Mix the raw materials according to the following parts by weight on a dry basis:

[0023] 65 parts of shale with a particle size of 1000-1500 mesh after crushing

[0024] 8 limes

[0025] Fly ash 25 parts

[0026] Cement 8 parts

[0027] (2) According to the above steps (1), add water to 85% of the dry basis of the mixed raw materials, add waste aluminum powder to 0.01% of the dry basis of the mixed raw materials, add gypsum to 25% of the mass of lime, and add flat to 2% of the mass of waste aluminum powder , 0.15% of lime mass plus triethanolamine, 4 parts of redispersible latex powder, 1.5 parts of lignocellulose, 0.3 parts of methyl cellulose ether, 2 parts of glycerol triacetate;

[0028] (3) Put the slurry stirred in the above step (2) at a temperature of 65-75°C, and foam for 30-40 minutes;

[0029] (4) The foamin...

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Abstract

The invention discloses a method capable of utilizing shales to produce an aerated hollow brick. The method comprises the following steps: (1), mixing such materials according to dry basis mass part as crushed shales with particle size of 1,000-1,500 meshes, lime and coal ash; and (2), according to the step (1), adding water in 85-95 percent of mixed material dry basis, adding waste aluminite powder in 0.04-0.06 percent of mixed material dry basis, gypsum in 9-11 percent lime, peregal in 1-4 percent of waste aluminite powder and triethanolamine in 0.1-0.3 percent of lime. According to the invention, a larger amount of the shales can be used to achieve the purposes of energy conservation and environment protection and ease the site problem caused by processing the shale piling, and a novel material source is provided for the hollow bricks.

Description

technical field [0001] The invention relates to the field of new building materials, in particular to a method for preparing aerated hollow bricks from shale. Background technique [0002] Shale is a kind of sedimentary rock with complex composition, but all have thin sheet-like or thin-sheet-like joints. It is mainly a rock formed by clay deposition through pressure and temperature, but it is mixed with quartz, feldspar debris and other chemical substances. Substances can be divided into calcareous shale, iron shale, siliceous shale, carbonaceous shale, black shale, kerogen shale, etc., according to the composition of the mixture, among which iron shale may become iron ore, Oil shale can be used to refine oil, and [1] black shale can be used as an indicator formation for oil. [0003] Shale is formed in a still water environment, and sediment has been deposited for a long time, so it often exists in lakes and river deltas. Shale is also formed in oceanic continental shelve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B28/10
Inventor 强晓震
Owner 安徽中龙建材科技有限公司
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