High-strength coal gangue sintered porous brick

A technology of coal gangue and porous brick, which is applied in the field of building materials, can solve problems such as poor seismic resistance, thermal insulation, sound insulation, etc., difficult to meet building needs, destroy ecological environment and other problems, achieve strong intermolecular bonding, improve activation performance and Surface-binding, economical effect

Inactive Publication Date: 2018-05-18
HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The use of brick and tile materials in residential buildings in our country is as high as about 85%. The traditionally used bricks are mostly clay solid bricks, which not only destroy a large amount of land every year, but also destroy the ecological environment. Meet existing building needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-strength coal gangue sintered porous brick, including the following components in percentage content: 30% of shale, 10% of waste plastic particles, 5% of vermiculite powder, 8% of alkaline slag, 1.0% of magnesium borate whiskers, modified silicon Alginate 5%, dispersant 2%, coal gangue balance.

[0019] The preparation steps of modified diatomite are as follows: take diatomite and place it in a ball mill to grind until the particle size is less than 5 μm, then add polyvinyl alcohol aqueous solution with 20% diatomite mass to it, stir evenly, and heat-preserve at 80°C for 3 hours, Then add a surface modifier of 0.5% diatomite mass to it, first oscillate at 50°C for 20 minutes, then heat-preserve it for 2h, and then dry it under reduced pressure at 50°C until the water content is 5±0.5%, to obtain modified diatomite .

[0020] Wherein, the mass percent content of polyvinyl alcohol in the polyvinyl alcohol aqueous solution is 1.5%, and the surface modifier is a com...

Embodiment 2

[0024] A high-strength coal gangue sintered porous brick, including the following components in percentage: 35% of shale, 15% of waste plastic particles, 4% of vermiculite powder, 10% of alkaline slag, 1.2% of magnesium borate whiskers, and residual coal gangue The amount also includes 4% of modified diatomaceous earth and 1% of dispersant.

[0025] The preparation steps of modified diatomite are as follows: take diatomite and place it in a ball mill to grind until the particle size is less than 5 μm, then add polyvinyl alcohol aqueous solution with 30% diatomite mass to it, stir evenly, and heat-preserve at 80°C for 4 hours, Then add a surface modifier of 1% diatomite mass to it, first oscillate at 50°C for 20 minutes, then heat-preserve for 3h, and then dry under reduced pressure at 50°C until the water content is 5±0.5%, to obtain modified diatomite .

[0026] Wherein, the mass percent content of polyvinyl alcohol in the polyvinyl alcohol aqueous solution is 2%, and the su...

Embodiment 3

[0030] A high-strength coal gangue sintered porous brick, including the following components in percentage: shale 20%, waste plastic particles 12%, vermiculite powder 6%, alkaline slag 8%, magnesium borate whiskers 1.8%, coal gangue residue The amount also includes 8% of modified diatomite and 3% of dispersant.

[0031] The preparation steps of modified diatomite are as follows: take diatomite and place it in a ball mill to grind until the particle size is less than 5 μm, then add polyvinyl alcohol aqueous solution with 30% diatomite mass to it, stir evenly, and heat-preserve at 80°C for 4 hours, Then add a surface modifier of 0.5% diatomite mass to it, first oscillate at 50°C for 20min, then heat-preserve for 3h, and then dry under reduced pressure at 50°C until the water content is 5±0.5%, to obtain modified diatomite .

[0032] Wherein, the mass percent content of polyvinyl alcohol in the polyvinyl alcohol aqueous solution is 3.5%, and the surface modifier is a composition o...

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Abstract

The invention provides a high-strength coal gangue sintered porous brick. The high-strength coal gangue sintered porous brick is prepared from the following components in percentage: 15 to 35 percentof shale, 2 to 10 percent of waste plastic particles, 4 to 7 percent of vermiculite powder, 5 to 10 percent of alkaline mineral slag, 0.5 to 1.8 percent of magnesium borate whisker, and the balance ofcoal gangue, and is also prepared from 0 to 10 percent of modified diatomaceous earth and 0 to 3 percent of a dispersing agent. According to the high-strength coal gangue sintered porous brick, through reasonable proportion of the raw materials, flow coupling among the components is effectively improved, the comprehensive performance is remarkably improved, and the prepared product has the compressive strength of greater than 28.4 MPa and the porosity of greater than 35 percent; industrial waste is fully utilized; and the high-strength coal gangue sintered porous brick is environment-friendly, economical and high in economic benefit, and is suitable for industrial popularization.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-strength coal gangue sintered porous brick. Background technique [0002] The use of brick and tile materials in residential buildings in our country is as high as about 85%. The traditionally used bricks are mostly clay solid bricks, which not only destroy a large amount of land every year, but also destroy the ecological environment. Meet existing building needs. Therefore, there is an urgent need to develop new wall materials to replace traditional solid bricks. At present, porous bricks with light weight, high strength and good shock resistance have already shown their superiority as new wall materials. Porous bricks refer to clay, shale, and fly ash as the main raw materials, which are formed and roasted. The porosity is equal to or greater than 15%. The hole type is round or non-round. The hole is small in size and the number is large Known as porous bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B33/132C04B33/138C04B33/36C04B33/13
CPCC04B33/13C04B33/1324C04B33/138C04B33/36C04B35/62605C04B35/6261C04B35/62645C04B35/62695C04B38/00C04B2235/3418C04B2235/5276C04B2235/77C04B2235/96C04B2235/9607C04B38/0074C04B38/0067Y02P40/60
Inventor 严艾青黄奋举
Owner HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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