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Burning-and-steam-curing-free alkaline slag brick and preparation method thereof
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A technology for alkali slag bricks and alkali slag, which is applied in the field of non-burning and non-steaming alkali slag bricks and its preparation, and can solve the problems of water pollution, huge project investment and other problems, and achieves pollution reduction, flexible material selection, and small cement consumption. Effect
Inactive Publication Date: 2011-08-24
司密花 +2
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Problems solved by technology
[0002] In the production process of soda ash industry and soda sulfide industry, a large amount of waste alkali slag will be produced. For example, about 9-12 tons of soda slag will be discharged per ton of soda ash produced. Discharge after dam construction requires huge engineering investment
For many years, people have been looking for ways to comprehensively utilize alkali slag. At present, alkali slag has been mixed with fired cement and salt mud to produce magnesium carbonate. It is also occasionally seen that solid CaCl 2 There are records of carbonized bricks produced from wollastonite and lime kiln waste residue, but there is no report on the production of soda slag bricks by the non-burning and autoclaving process.
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Embodiment 1
[0019] Alkali slag 100, cement 3, magnesium slag 50, active coagulation-aiding material 30, fly ash 50, coarse aggregate 30, sent to the mixer for dry mixing for 3 minutes, adding an appropriate amount of water for forming wet mixing for 3 minutes, and transported to the block Vibration and pressure molding in the mold of the forming machine, after demoulding, it is naturally cured under normal temperature and pressure moisturizing conditions or covered with plastic film for 28 days to obtain a finished product.
Embodiment 2
[0021] 100 alkali sulfide slag, 5 cement, 100 oil shale slag, 100 wind sand, 50 coal slag, put into a mixer for dry mixing for 3 minutes, add an appropriate amount of water that is good for forming and wet mix for 3 minutes, and send it to the block forming machine mold for vibration Forming, after demoulding, it is naturally cured under normal temperature and pressure moisturizing conditions or covered with plastic film for 28 days to obtain a finished product.
Embodiment 3
[0023] Alkali slag 200, cement 8, magnesium slag 150, fly ash 50, coal gangue after combustion 150, tailings sand 100, stone powder 100, send to the mixer for 3 minutes dry mixing, add appropriate amount of water for 3 minutes wet mixing, and transport to Vibration and pressure forming in the mold of the block forming machine. After demoulding, it is naturally cured under normal temperature and pressure moisturizing conditions or covered with a plastic film to receive solar heat, heating, moisturizing and curing for 28 days to obtain a finished product.
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Abstract
The invention discloses a burning-and-steam-curing-free alkaline slag brick. The burning-and-steam-curing-free alkaline slag brick is prepared from the following raw materials in part by weight or volume: 20 to 200 parts of alkaline slag or vulcanized alkaline slag, 0 to 200 parts of magnesium slag, 0 to 200 parts of fly ash, 0 to 200 parts of coal cinder, 0 to 200 parts of tailing sand, 0 to 200 parts of limestone powder, 0 to 200 parts of coarse aggregate, 0 to 200 parts of oil shale waste, 0 to 200 parts of activated coagulation aiding material, 0 to 200 parts of waste sand, 2 to 20 parts of cement, and a proper amount of water. The raw materials are stirred and then are fed into a block making machine for vibration compression molding, and a finished product is obtained through natural curing or solar warming-up curing for 7 to 28 days. The burning-and-steam-curing-free solid bricks, perforated bricks, hollow blocks, floor tiles, road edge bricks, grass planting bricks, slope protection bricks and fence railings of different specifications can be produced by replacing different mold machines. Industrial waste slag is utilized to turn harm into good, material selection is flexible, the process is simple and convenient, the cost is low, the strength of the product is high, and the burning-and-steam-curing-free alkaline slag brick has excellent development and application prospects.
Description
technical field [0001] The invention relates to an alkali slag brick, in particular to a non-burning and non-steaming alkali slag brick and a preparation method thereof, belonging to the field of building materials. technical background [0002] In the production process of soda ash industry and soda sulfide industry, a large amount of waste alkali slag will be produced. For example, about 9-12 tons of soda slag will be discharged per ton of soda ash produced. Discharge after dam construction requires huge engineering investment. For many years, people have been looking for ways to comprehensively utilize alkali slag. At present, alkali slag has been mixed with fired cement and salt mud to produce magnesium carbonate. It is also occasionally seen that solid CaCl 2 There are records of carbonized bricks produced from wollastonite and lime kiln waste slag, but there is no report on the production of soda slag bricks by the non-burning and autoclaving process. Contents of th...
Claims
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Application Information
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