Autoclaved sand aerated concrete block produced from dry soil silt sand and preparation method thereof
A technology of air-entrained concrete and autoclaved sand, applied in the field of air-entrained concrete, can solve problems such as environmental pollution and waste of clay resources, and achieve the effects of low cost, convenient material acquisition, and good economy
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Embodiment 1
[0042] A method for preparing an autoclaved sand aerated concrete block produced from dry soil silt, the preparation method comprising the following steps:
[0043] Step 1: Sieve the dry soil silt sand through a 3mm aperture sieve, remove the sieved material, and obtain the dry soil silt sand primary material less than 3mm;
[0044] Step 2: placing the dry soil silt raw material in step 1 on a sieve with an aperture of 0.1 mm for water washing to remove clay impurities, and obtain dry soil silt raw materials with a particle size of 0.1 mm to 3 mm without clay impurities;
[0045] Step 3: Grinding the dry soil silt sand raw material of 0.1 mm to 3 mm obtained in step 2 into a sand slurry through a wet ball mill;
[0046] Step 4: Take by weighing the sand slurry, cement 16kg, quicklime 12kg, desulfurized gypsum 3kg and aluminum powder 0.06kg containing 58kg of dry soil silt in step 3 in proportion, put them into a mixer, add 53kg of water and stir to form a mixture;
[0047] St...
Embodiment 2
[0050] A method for preparing an autoclaved sand aerated concrete block produced from dry soil silt, the preparation method comprising the following steps:
[0051] Step 1: Sieve the dry soil silt sand through a 3mm aperture sieve, remove the sieved material, and obtain the dry soil silt sand primary material less than 3mm;
[0052] Step 2: placing the dry soil silt raw material in step 1 on a sieve with an aperture of 0.1 mm for water washing to remove clay impurities, and obtain dry soil silt raw materials with a particle size of 0.1 mm to 3 mm without clay impurities;
[0053] Step 3: Grinding the dry soil silt sand raw material of 0.1 mm to 3 mm obtained in step 2 into a sand slurry through a wet ball mill;
[0054] Step 4: Weigh the sand slurry containing 63.5kg of dry soil silt in step 3, 19kg of cement, 13.5kg of quicklime, 4kg of desulfurized gypsum and 0.08kg of aluminum powder in step 3, put them into a mixer, add 60kg of water and stir to form mixture;
[0055] St...
Embodiment 3
[0058] A method for preparing an autoclaved sand aerated concrete block produced from dry soil silt, the preparation method comprising the following steps:
[0059] Step 1: Sieve the dry soil silt sand through a 3mm aperture sieve, remove the sieved material, and obtain the dry soil silt sand primary material less than 3mm;
[0060] Step 2: placing the dry soil silt raw material in step 1 on a sieve with an aperture of 0.1 mm for water washing to remove clay impurities, and obtain dry soil silt raw materials with a particle size of 0.1 mm to 3 mm without clay impurities;
[0061] Step 3: Grinding the dry soil silt sand raw material of 0.1 mm to 3 mm obtained in step 2 into a sand slurry through a wet ball mill;
[0062] Step 4: Take by weighing the sand slurry, 22kg of cement, 15kg of quicklime, 5kg of desulfurized gypsum and 0.10kg of aluminum powder containing 69kg of dry soil silt in step 3 in proportion, put them into a mixer, add 66kg of water and stir to form a mixture; ...
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Abstract
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