High-performance aerated concrete building material utilizing barium slag and preparation method thereof

A technology for aerated concrete and building materials, which is applied in the field of building materials to achieve the effects of improving performance, enriching choices and improving efficiency

Inactive Publication Date: 2014-09-24
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no relevant research on how to use barium slag as a raw material to prepare high-strength aerated concrete.

Method used

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  • High-performance aerated concrete building material utilizing barium slag and preparation method thereof

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Effect test

Embodiment 1

[0035] A high-performance aerated concrete building material utilizing barium slag. The raw materials include the following composition in parts by weight: 24 parts of barium slag, 15 parts of cement, 40 parts of fly ash, 18 parts of lime, 3 parts of gypsum, aluminum 0.2 part of powder, 0.6 part of casein, 0.001 part of foam stabilizer.

[0036] The preparation method of above-mentioned high-performance aerated concrete building material comprises the following steps:

[0037] (1) Prepare the following raw materials in parts by weight: 24 parts of barium slag, 15 parts of cement, 40 parts of fly ash, 18 parts of lime, 3 parts of gypsum, 0.2 part of aluminum powder, 0.6 part of casein, 0.001 part of foam stabilizer ; In addition, the amount of water that needs to be prepared is 58 parts;

[0038] (2) Grinding the barium slag, fly ash, lime, and gypsum after mixing the ingredients, so that the particle size is 80 μm square hole sieve residue≤8%;

[0039] (3) Add cement, casein, ...

Embodiment 2

[0043] A high-performance aerated concrete building material utilizing barium slag. The raw materials include the following composition in parts by weight: 16 parts of barium slag, 18 parts of cement, 37 parts of fly ash, 25 parts of lime, 4 parts of gypsum, aluminum 0.4 part of powder, 0.2 part of casein, and 0.002 part of foam stabilizer.

[0044] The preparation method of above-mentioned high-performance aerated concrete building material comprises the following steps:

[0045] (1) Prepare the following raw materials in parts by weight: 16 parts of barium slag, 18 parts of cement, 37 parts of fly ash, 25 parts of lime, 4 parts of gypsum, 0.4 part of aluminum powder, 0.2 part of casein, 0.002 part of foam stabilizer ; In addition, the amount of water that needs to be prepared is .

[0046] (2) Grinding the barium slag, fly ash, lime, and gypsum after mixing the ingredients, so that the particle size is 80 μm square hole sieve residue≤8%;

[0047] (3) Add cement, casein, fo...

Embodiment 3

[0051] A high-performance aerated concrete building material utilizing barium slag, the total amount of added raw materials is 98-100 parts by weight, including the following composition: 20 parts of barium slag, 18 parts of cement, 38 parts of fly ash, 20 parts of lime, 3 parts of gypsum, 0.1 part of aluminum powder, 0.4 part of casein, 0.001 part of foam stabilizer.

[0052] The preparation method of above-mentioned high-performance aerated concrete building material comprises the following steps:

[0053] (1) Prepare the following raw materials in parts by weight: 20 parts of barium slag, 18 parts of cement, 38 parts of fly ash, 20 parts of lime, 3 parts of gypsum, 0.1 part of aluminum powder, 0.4 part of casein, 0.001 part of foam stabilizer ; In addition, the amount of water that needs to be prepared is 60 parts.

[0054] (2) Grinding the barium slag, fly ash, lime, and gypsum after mixing the ingredients, so that the particle size is 80 μm square hole sieve residue≤8%; ...

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Abstract

The invention relates to a high-performance aerated concrete building material utilizing barium slag and a preparation method thereof. The high-performance aerated concrete building material utilizing the barium slag is prepared from the following raw materials in parts by weight: 16-24 parts of barium slag, 8-18 parts of cement, 30-45 parts of coal ash, 14-25 parts of lime, 2-5 parts of gypsum, 0.1-0.4 part of aluminium powder, 0.1-0.6 part of casein and 0.0005-0.002 part of foam stabilizer, wherein the total parts by weight of the raw materials is 98-102 parts. The preparation method takes full use of barium slag, a chemical reaction is carried out between Ba<2+> and SO4<2+> under the condition of high temperature autoclaving to generate indissolvable BaSO4, and thus Ba<2+> is solidified and environmental pollution is reduced; in addition, by reducing the ratio of water to material and adding casein, performance of slurry is improved, and a thickening and gas-forming coordination process is optimized, so that gas-forming time is shortened and production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to an aerated concrete building material using barium slag and a preparation method thereof. Background technique [0002] With the rapid development of building materials, people's awareness of environmental protection has increased, and their requirements for living environment have become higher and higher. Therefore, applying industrial waste residues to building materials will bring huge social benefits to the society. [0003] In the industrial production of barium salt, a large amount of barium slag is produced, and the main component of barium slag is: BaSO 4 The mass ratio is 38%-45%, BaCO 3 The mass ratio is 20%-35%, SiO 2 The mass ratio is 10%-15%, Al 2 o 3 The mass ratio is about 5%. Among them, BaCO 3 So soluble barium will be more soluble in water, highly toxic Ba 2+ Will cause serious damage to the environment. In the periodic table of elements, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/14C04B18/04
CPCY02W30/91
Inventor 蹇守卫莫志胜马保国李相国黄健谭洪波蔡礼雄张吕东
Owner WUHAN UNIV OF TECH
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