Acetylene sludge aerated concrete block and preparation method thereof
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A technology of calcium carbide slag and aerated bricks, applied in the field of building materials, can solve problems such as land occupation and environmental pollution, and achieve the effects of protecting the environment, reducing bulk density, and reducing energy consumption
Active Publication Date: 2013-01-16
广东合盛建筑工程有限公司
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Embodiment 1
[0025] Weigh the following raw materials in parts by weight: carbide slag 20-30, fly ash 25-30, cement 5-10, modified nano attapulgite 4-6, water treatment sludge 5-10, alkali slag 5-10, Light calcium powder 5-10, lime 10-15, triethanolamine lime 0.1-0.3% by weight, gypsum 1-3, aluminum powder 0.02-0.08, oxidized paraffin wax soap 3-5% by aluminum powder, bicarbonate Calcium 0.01-0.02, clay residue 2-3, lignocellulose 1-2, water glass 0.3-0.5, sodium hexametaphosphate 1-2, borax 0.03-0.05, hydroxypropyl methylcellulose sodium 1-2, super fine polyvinyl alcohol 1-2,
[0026] Among them, the attapulgite is modified: first soak the attapulgite with 15-20% hydrochloric acid for 1-2 hours, let it stand, clarify, centrifuge, wash the solid with water until it is neutral, and after drying, add an amount equivalent to the weight of the solid 3-5% vinyltriethoxysilane is stirred evenly, dried and ground into nanopowder,
[0027] Process the above-mentioned substances that have been we...
Embodiment 2
[0035] Weigh the following raw materials in parts by weight: calcium carbide slag 25, cement 56, modified nano attapulgite 5, water treatment sludge 8, alkali slag 6, light calcium powder 12, lime 14, 0.1-0.3% of the weight of triethanolamine lime , gypsum 2, aluminum powder 0.05, the amount of oxidized paraffin wax soap is 4% of the weight of aluminum powder, calcium bicarbonate 0.01, white clay slag 3, lignocellulose 1.5, water glass 0.4, sodium hexametaphosphate 1, borax 0.04, hydroxypropyl Sodium methyl cellulose 2, ultrafine polyvinyl alcohol 1, wherein, the modified attapulgite is obtained by the following method: first soak sepiolite with 15% hydrochloric acid for 1-2 hours, let stand, clarify, centrifuge, solid Wash with water until neutral, after drying, add vinyltriethoxysilane equivalent to 3-5% of solid weight, stir evenly, dry, and crush into powder,
[0036] Process the above-mentioned substances that have been weighed into finished aerated bricks according to th...
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Abstract
The invention provides an acetylene sludge aerated concrete block, which is prepared by processing the following raw materials in part by weight: 20-30 parts of acetylene sludge, 25-30 parts of coal ash, 5-10 parts of cement, 4-6 parts of modified attapulgite, 5-10 parts of water treatment sludge, 5-10 parts of soda residue, 5-10 parts of light calcium powder, 10-15 parts of lime, triethanolamine, 4-5 parts of gypse, 0.02-0.08 part of aluminium powder, oxidized paraffin wax soap, 0.01-0.02 part of calcium bicarbonate, 2-3 parts of chelky slag, 1-2 parts of lignocellulose, 0.3-0.5 part of water glass, 0.03-0.05 part of borax, 1-2 parts of sodium hexametaphosphate, 1-2 parts of hydroxy propyl methyl cellulose sodium and 1-2 parts of superfine polyvinyl alcohol, wherein the weight of the triethanolamine is 0.1-0.3 percent of that of the lime, and the weight of the oxidized paraffin wax soap is 3-5 percent of that of the aluminium powder. According to the invention, the acetylene sludge is added into the raw materials of the aerated concrete block, and meanwhile other conventional additives and modified nano additives are added; the aerated concrete block is prepared by adopting a proper technology and is low in cost and good in performance; the circulating economy effect of changing waste into valuable is realized; the pollution is reduced; and the prepared aerated concrete block has the characteristics of light volume weight, high thermal insulation performance, good sound absorption effect and high strength and can be used for non-bearing or bearing wall bodies.
Description
technical field [0001] The invention relates to the field of building materials, in particular to a calcium carbide slag aerated brick and a preparation method thereof. Background technique [0002] The aerated concrete block is a solid block made of cement, slag, sand, lime, etc., added with an air-generating agent, stirred and formed, and autoclaved. According to the application, the aerated concrete can be divided into non-load-bearing blocks , load-bearing blocks, insulation blocks, wall panels and roof panels five. [0003] Aerated brick has the advantages of light bulk density, high thermal insulation performance, good sound absorption effect, certain strength and machinability, etc. It is one of the earliest and most widely used lightweight wall materials in my country. [0004] Under the background of the increasingly important protection of energy and natural resources in the world, with the adjustment of industrial policies and the improvement of environmental pro...
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