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Lightweight high-strength gangue baking-free brick

A coal gangue, high-strength technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of unsatisfactory sound insulation and water resistance, low strength, and high quality of unburned bricks, and achieve the solution of anti-corrosion cracking, low water absorption, good crack resistance

Inactive Publication Date: 2016-11-09
安徽金丰新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing unburned bricks have high quality, low strength, and sound insulation and water resistance effects that cannot meet the needs of some occasions.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] A light and high-strength coal gangue unburned brick, made of the following raw materials in parts by weight: coal gangue 40, basalt powder 2, electrolytic manganese slag 30, ceramic powder 2, glass powder 0.8, red mud 8, limestone 1, Arsenic sandstone 2, sodium silicate 5, modifier 7, cementitious material 18, boron mud 2, appropriate amount of water;

[0018] The gelling material is made of the following components in parts by weight: cement 20, clay 10, gypsum dihydrate 4, calcium silicate hydrate gel 1, alunite 0.5, periclase 0.8, bentonite 3; The preparation method of the coagulation material is as follows: after mixing cement, clay, dihydrate gypsum, calcium silicate hydrate gel, alunite, periclase, and bentonite evenly, add them to absolute ethanol, and grind for 40 minutes. The particle size of the mixture is Reach 200-250 mesh, filter, and the bentonite is pretreated: the bentonite is first calcined at 358°C for 10 minutes, then cooled to 182°C, added to water ...

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PUM

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Abstract

The invention discloses a lightweight high-strength gangue baking-free brick, which is prepared from the following ingredients: gangue, basalt powder, electrolytic manganese residue, ceramic powder, glass powder, red mud, limestone, arsenic sandstone, water glass, a modifier, a cementing material, boron mud and a proper amount of water. The production technology of the baking-free brick is simple, and the cost is low. Through synergism of the materials, the prepared baking-free brick is endowed with high strength, low thermal conductivity and good crack resistance, is energy-saving and environment friendly, meets requirements of constructional engineering, and accords with environmental protection requirement. The baking-free brick has excellent high and low temperature resistance. Problems of general baking-free bricks, such as poor crack resistance and frost resistance, are solved. The application range of baking-free brick is greatly broadened.

Description

technical field [0001] The invention relates to the field of building material production, in particular to a coal gangue burn-free brick with light weight and high strength. Background technique [0002] Coal gangue is one of the largest industrial solid wastes in China. At present, more than 3 billion tons have been stockpiled in the country, covering an area of ​​about 1.2×104 hectares. Moreover, the annual discharge of coal gangue is equivalent to about 10% of the coal production in that year. The annual emission rate will be greater than 160 million tons. Stacking coal gangue not only takes up a lot of land, but also pollutes the environment and affects people's life and health. In addition, coal gangue often spontaneously combusts, which not only wastes energy, but also produces a lot of smoke and harmful gases. Spontaneously combusted coal gangue will also deflagrate under certain conditions and induce collapses and landslides, directly endangering nearby construc...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B18/12
CPCC04B18/12C04B28/14C04B7/00C04B7/02C04B9/00C04B12/00C04B14/06C04B18/141C04B14/04C04B14/22C04B14/28C04B22/08C04B18/0418Y02W30/91
Inventor 周武
Owner 安徽金丰新型建材有限公司
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