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Gypsum-based foamed lightweight thermal insulation material and preparation method thereof
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A thermal insulation material and gypsum-based technology, which is applied in the field of building materials, can solve the problems of low compressive strength and achieve the effects of high strength, simple preparation process and low energy consumption
Inactive Publication Date: 2019-02-15
内蒙古云农实业有限公司
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[0004] The present invention proposes a gypsum-based foamed lightweight thermal insulation material and its preparation method, which solves the problem of low compressive strength of building materials in the prior art
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[0039] a: Mix gypsum, fly ash, lime, and cement evenly to obtain a dry mixture,
[0040] b: After mixing the polymer fiber and the organic polymer evenly, add 29Kg of water to mix with the dry mixture to form a liquid slurry,
[0041] c: Mix the aluminum powder and 40Kg of water evenly and then stir with the liquid slurry,
[0042] d: foaming, forming, curing and drying the slurry obtained in step c to form a product.
[0043] The temperature of water in step b is 42-45 DEG C, the temperature of water in step c is 19-21 DEG C,
[0044] During the curing process in step d, the temperature is 63-67° C., and the humidity is 85-87%.
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Abstract
The invention belongs to the technical field and provides a gypsum-based foamed lightweight thermal insulation material and a preparation method thereof. The gypsum-based foamed lightweight thermal insulation material comprises the following components in parts by weight: 50-70 parts of gypsum, 20-30 parts of fly ash, 8-12 parts of lime, 0.12-0.14 part of aluminum powder, 17-20 parts of cement, 0.01-3 parts of an organic polymer and 0.05-3 parts of polymerfiber. The preparation method comprises the following steps: uniformly mixing the gypsum, the fly ash, the lime and the cement according tothe weight ratio to obtain a dry mixture; uniformly mixing the polymerfiber and the organic polymer according to the weight ratio, then adding 40-45 percent of the total amount of water and mixing with the dry mixture to form liquid slurry; uniformly mixing the aluminum powder with 60-55 percent of the total amount of water and then stirring with the liquid slurry, wherein the ratio of the waterto the slurry is 0.47-0.50; foaming, forming, maintaining and drying the slurry obtained in the step c to form a product. Through the technical scheme, the problem of low compressive strength of a building material in the prior art is solved.
Description
technical field [0001] The invention belongs to the technical field of building materials, and relates to a gypsum-based foamed lightweight thermal insulation material and a preparation method thereof. Background technique [0002] Fly ash is the fine ash collected from the flue gas after coalcombustion. Fly ash is the main solid waste discharged from coal-fired power plants. The main oxide composition of fly ash in thermal power plants in my country is: SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2, etc. With the development of the power industry, the discharge of fly ash from coal-fired power plants has increased year by year, becoming one of the largest industrial wastes in my country. If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if it is discharged into the water system, it will cause river silting, and the toxic chemicals in it will also cause harm to human beings and organisms. However, fly ash can be used as a resource, such a...
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Application Information
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