Boron slag aerated brick and preparation method thereof
A technology of boron slag and aerated bricks, which is applied in the field of building materials to achieve the effect of saving natural resources and reducing pollution
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[0015] The preparation method of the boron slag aerated brick is characterized in that it comprises the following steps:
[0016] (1) Modification of sepiolite: first soak sepiolite with 15-20% hydrochloric acid for 1-2 hours, let stand, clarify, centrifuge, wash the solid with water until neutral, after drying, add equivalent Vinyltriethoxysilane with a solid weight of 3-5% is stirred evenly, dried, and crushed into powder;
[0017] (2) Weigh each raw material according to the formula ratio, put the bulk material into a ball mill for grinding, and pass the powder through a 180-200 mesh sieve;
[0018] (3) Mix the ground main ingredients and additives together, put them into a mixer, add an appropriate amount of water and stir them into a slurry;
[0019] (4) Inject the stirred mixed slurry into the mold;
[0020] (5) Then put it into the rest room and keep it sealed at 50-60°C for heat preservation, and the rest time is 1.5-2 hours to obtain the rested green body;
[0021]...
Embodiment 1
[0027] Weigh the following raw materials in parts by weight: boron slag 20-30, fly ash 25-30, cement 5-10, modified sepiolite powder 4-6, carbon powder 5-10, ceramic factory waste 5-10, light calcium Powder 5-10, lime 10-15, triethanolamine added in an amount of 0.1-0.3% of the lime weight, gypsum 4-5, aluminum powder 0.02-0.08, sodium dibutylnaphthalene sulfonate added in an aluminum powder weight 3-5%, calcium bicarbonate 0.01-0.02, volcanic rock 2-3, lignocellulose 1-2, soda ash 0.3-0.5, white latex 1-2, hydroxypropyl methylcellulose sodium 1-2, chitosan 1-2;
[0028] Among them, the modified sepiolite powder is obtained by the following method: first soak the sepiolite with 15-20% hydrochloric acid for 1-2 hours, let it stand, clarify, centrifuge, wash the solid with water until neutral, after drying, add equivalent Vinyltriethoxysilane with 3-5% solid weight is stirred evenly, dried, and crushed into powder;
[0029] Process the above-mentioned substances that have been...
Embodiment 2
[0039] Weigh the following raw materials in parts by weight: boron slag 25, cement 56, modified sepiolite powder 5, charcoal powder 8, ceramic factory waste 6, light calcium powder 12, lime 14, 0.1-0.3% of the weight of triethanolamine lime, gypsum 5. Aluminum powder 0.05, sodium dibutylnaphthalene sulfonate 4% of the weight of aluminum powder, calcium bicarbonate 0.01, volcanic rock 3, lignocellulose 1.5, soda ash 0.4, white latex 1, hydroxypropyl methylcellulose Sodium 2, chitosan 1, wherein, the modified sepiolite powder is obtained by the following method: first soak the sepiolite with 15% hydrochloric acid for 1-2 hours, let stand, clarify, centrifuge, wash the solid with water to neutrality, dry After drying, add vinyl triethoxysilane equivalent to 3-5% of solid weight, stir evenly, dry, and crush into powder,
[0040] Process the above-mentioned substances that have been weighed into finished aerated bricks according to the following methods, the specific steps:
[004...
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