Aerated lightweight sintered shale brick and production method
A production method and technology of shale bricks, which are applied in the field of aerated light-weight sintered shale bricks and production, can solve the problems of high density of concrete blocks, poor sound insulation and heat insulation performance, and poor seismic performance, so as to achieve beautiful sintered products and light weight The effect of small density and excellent performance
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Embodiment 1
[0019] (1) Grind shale powder and coal gangue to fine powder of 0.25-2mm, and grind quicklime to 190-210 mesh.
[0020] (2) Mix 50% of shale powder, 15% of coal gangue, 15% of quicklime, and 30% of aluminum powder, add water and stir for 10 minutes. The water content of the mixture is 50%.
[0021] (3) Pour the mixture into the mold and let it foam naturally for 1.5 hours. Cut off the top of the bread and remove the mold after 4 hours.
[0022] (4) Cut the foamed shale adobe by using an ordinary hacksaw, and the cut size is 240mm×115mm×53mm.
[0023] (5) Roast the cut standard adobes to obtain aerated lightweight sintered shale bricks. Wherein the sintering temperature is controlled at 1000°C-1120°C and kept for 500 minutes.
[0024] The product specifications of the obtained lightweight bricks are 240mm×115mm×53mm or other specifications, and the weight of the bricks can be further reduced by opening holes; the compressive strength is ≥3.5Mpa; the density is 414.3kg / m 3 ;...
Embodiment 2
[0026] (1) Grind shale powder and coal gangue to fine powder of 0.25-2mm, and grind quicklime to 190-210 mesh.
[0027] (2) Mix shale powder accounting for 53% by mass, coal gangue accounting for 18%, quicklime accounting for 14%, aluminum powder accounting for 25%, add water and stir for 10 minutes, and the water content of the mixture is 50%.
[0028] (3) Pour the mixture into the mold and let it foam naturally for 1.5 hours. Cut off the top of the bread and remove the mold after 4 hours.
[0029] (4) Cut the foamed shale adobe by using an ordinary hacksaw, and the cut size is 240mm×115mm×53mm.
[0030] (5) Roast the cut standard adobes to obtain aerated lightweight sintered shale bricks. Wherein the sintering temperature is controlled at 1000°C-1120°C and kept for 500 minutes.
[0031] The product specifications of the obtained lightweight bricks are 240mm×115mm×53mm or other specifications, and the weight of the bricks can be further reduced by opening holes; the compre...
Embodiment 3
[0033] (1) Grind shale powder and coal gangue to fine powder of 0.25-2mm, and grind quicklime to 190-210 mesh.
[0034] (2) Mix 56% of shale powder, 18% of coal gangue, 13% of quicklime, and 20% of aluminum powder, add water and stir for 10 minutes, and the water content of the mixture is 50%.
[0035] (3) Pour the mixture into the mold and let it foam naturally for 1.5 hours. Cut off the top of the bread and remove the mold after 4 hours.
[0036] (4) Cut the foamed shale adobe by using an ordinary hacksaw, and the cut size is 240mm×115mm×53mm.
[0037] (5) Roast the cut standard adobes to obtain aerated lightweight sintered shale bricks. Wherein the sintering temperature is controlled at 1000°C-1120°C and kept for 500 minutes.
[0038] The product specifications of the obtained lightweight bricks are 240mm×115mm×53mm or other specifications, and the weight of the bricks can be further reduced by opening holes; the compressive strength is ≥5.2Mpa; the density is 594.2kg / m ...
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