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
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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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