Foaming modified powder in aerated brick and manufacturing process thereof
A production process and modified powder technology, which is applied in the field of building bricks, can solve the problems of easy cracking of aerated bricks, uneven distribution and size of pores in aerated bricks, achieve uniform gas generation positions and generated pore sizes, and save material costs and labor costs, the effect of delaying delamination
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Embodiment 1
[0056] The foamed modified powder in the aerated brick of this embodiment includes cement, starch and aluminum powder, and the weight ratio is 7:4:1.
[0057] The steps of the manufacturing process of the foamed modified powder in the aerated brick of the present embodiment are:
[0058] A. Ingredients: take 70kg cement, 40kg starch and 10kg aluminum powder;
[0059] B. Mixing: After mixing the prepared powder in step A evenly, add 54kg of water and stir evenly to form an initial coagulation body and let it stand for 20 minutes;
[0060] C. Ball milling: transfer the initial coagulation body into a wet ball mill and ball mill it into a slurry of foamed modified powder.
[0061] The foamed modified powder in the aerated brick of this example can be absorbed by the starch during the initial setting of the cement and initially gelatinized, which strengthens the adsorption of aluminum powder. The aluminum powder (less than 0.1%) is magnified 12 times, which can make the subseque...
Embodiment 2
[0063] The foamed modified powder in the aerated brick of this embodiment includes cement, starch and aluminum powder, and the weight ratio is 7:6:1;
[0064] The steps of the manufacturing process of the foamed modified powder in the aerated brick of the present embodiment are:
[0065] A. Ingredients: take 70kg cement, 60kg starch and 10kg aluminum powder;
[0066] B. Mixing: After mixing the prepared powder in step A evenly, add 70kg of water and stir evenly to form an initial coagulation body;
[0067] C. Mold entry: spread the initial solidification body into the mold;
[0068] D. Drying: transfer to a dryer to obtain blocky materials; the drying temperature is 50-55°C to avoid excessive gelatinization of starch; drying to a moisture content of less than 10%, the drying time is about about 5 hours;
[0069] E. Crushing: put the block material into the crusher for crushing;
[0070] F. Pulverization: After crushing, use a dry ball mill to pulverize to obtain foamed mod...
Embodiment 3
[0073] The foamed modified powder in the aerated brick of this embodiment includes cement, starch and aluminum powder, and the weight ratio is 7:5:1;
[0074] The steps of the manufacturing process of the foamed modified powder in the aerated brick of the present embodiment are:
[0075] A. Ingredients: take 70kg cement, 50kg starch and 10kg aluminum powder;
[0076] B. Mixing: After mixing the prepared powder in step A evenly, add 71.5kg of water and stir evenly to form an initial solid;
[0077] C. Mold entry: spread the initial solidification body into the mold; the thickness of the paving plate is 3cm; the weight of the paving plate is 15kg;
[0078] D. Quick-freezing: Transfer to the quick-freezing store for quick freezing; the quick-freezing temperature is -15°C for 1 hour, and the aluminum powder particles are quick-frozen and positioned first to prevent displacement.
[0079] E. Freeze-drying: transfer to 50m 2 The bulk material is obtained after freeze-drying in th...
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