Diatomite modified aerated concrete block and preparation method thereof
A technology of aerated concrete and diatomite, applied in the field of building materials, can solve the problems of large drying shrinkage, single material source, poor heat insulation, etc., and achieve high compressive strength, increase hydrophobicity, and improve water seepage capacity Effect
Active Publication Date: 2016-04-13
TONGLING FENGZE BUILDING MATERIALS TECH
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AI Technical Summary
Problems solved by technology
[0002] As a new type of wall material, air-entrained concrete is a low-energy, environmentally-friendly new building material, which belongs to the building materials promoted by the state. However, because ordinary air-entrained concrete is made of cement, fly ash, quicklime, gypsum, etc. Large shrinkage value, low strength, water seepage, non-corrosion resistance, poor heat insulation, single source of material, etc. Therefore, further research on aerated concrete block technology is urgently needed to further meet market requirements
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] The aerated concrete block modified by diatomite is characterized in that it is made of the following raw materials in parts by weight (kg): cement 25, quicklime 22, gypsum 12, fly ash 50, aluminum powder 0.25, isothiazolinone 1, Chlorinated paraffin 3, gelatin 3, diatomaceous earth 20, methyl glucoside polyoxyethylene ether 3, sodium persulfate 4, oil foot 4, sodium carboxymethyl cellulose 10.
[0013] The aerated concrete block modified by diatomite is characterized in that it comprises the following steps:
[0014] (1) Add appropriate amount of water to gelatin and diatomaceous earth, stir for 15-20 minutes, add oil foot, isothiazolinone, methyl glucoside polyoxyethylene ether, stir for 15-25 minutes, then add sodium persulfate, After stirring for 20-35 minutes, add sodium carboxymethyl cellulose and stir for 20-30 minutes, and stir into mud;
[0015] (2) Add cement and fly ash to 40-50°C hot water and mix for 20-35 minutes, then add the mud obtained in step (1), al...
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Abstract
The invention relates to a diatomite-modified aerated concrete block and a preparation method thereof. The diatomite-modified aerated concrete block is prepared by the following raw materials by weight: 25-30 parts of cement, 18-22 parts of quicklime, 12-15 parts of gypsum, 50-55 parts of fly ash, 0.2-0.25 part of aluminum powder, 1-2 parts of isothiazolinone, 3-5 parts of chlorinated paraffin, 2-3 parts of gelatin, 20-25 parts of diatomite, 2-3 parts of methyl glucoside polyoxyethylene ether, 3-4 parts of sodium persulfate, 4-6 parts of oil residues and 10-12 parts of sodium carboxymethylcellulose. By adopting the diatomite to modify the aerated concrete block, binding power among the raw materials is enhanced; the strength of the block is increased; and at the same time, the block has a certain capacity for absorbing toxic elements.
Description
technical field [0001] The invention belongs to a building material technology, in particular to a concrete block and a preparation method thereof. Background technique [0002] As a new type of wall material, air-entrained concrete is a low-energy, environmentally-friendly new building material, which belongs to the building materials promoted by the state. However, because ordinary air-entrained concrete is made of cement, fly ash, quicklime, gypsum, etc. Large shrinkage value, low strength, water seepage, no corrosion resistance, poor heat insulation, single source of material, etc. Therefore, further research on aerated concrete block technology is urgently needed to further meet market requirements. Contents of the invention [0003] The object of the present invention is to provide a diatomite modified aerated concrete block and its preparation method, which can improve the cohesive force between the raw materials of the block, improve the strength of the block, and ...
Claims
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IPC IPC(8): C04B28/14
Inventor 梅树田
Owner TONGLING FENGZE BUILDING MATERIALS TECH