Method for preparing highly-doped fly ash lightweight heat-insulation bricks, and bricks prepared by same

A technology of fly ash and high content, applied in the field of building bricks, can solve the problems of increased cost of end products, environmental pollution, high price of sintered ceramsite, etc., and achieve the effect of shortening maintenance time, cheap raw materials, and low cost

Inactive Publication Date: 2010-06-23
杜世永
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The price of sintered ceramsite is relatively high, about 150-400 yuan/cubic meter, which will lead to a substantial increase in the cost ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] a. Weigh 0.2Kg of aluminum powder paste (quality should comply with the "Aluminum Powder Paste for Aerated Concrete" JC / T407-2000 standard, the same below), 1Kg of sodium sulfate, 0.4Kg of sodium rosinate, 43kg of fly ash, Carbide slag 4kg, gypsum 1.5kg; Aluminum powder paste, sodium sulfate and sodium rosinate in the above materials are dissolved in 8Kg water to make additive I. The fly ash, calcium carbide slag and gypsum in the above materials are sent to the wheel mill for wheel grinding, and the admixture I is evenly added, and the wheel mills until the fineness is 40-60% after the 180-mesh standard sieve balance is 40-60%. The material is sent to the ball forming plate to form balls, and the ball blanks after ball formation are sent to the sieve for screening; the ball blanks with a diameter of 3 to 8 mm are steamed for 28 hours to obtain fly ash unfired ceramsite.

[0020] b. Weigh 21kg of fly ash, 16kg of calcium carbide slag, and 6kg of desulfurized gypsum in p...

Embodiment 2

[0025] a. Weigh 0.5Kg of aluminum powder paste (the quality should meet the JC / T407-2000 standard of "Aluminum Powder Paste for Aerated Concrete", the same below), 0.4Kg of sodium sulfate, 0.1Kg of sodium rosinate, and 32kg of fly ash in proportion , lime powder 6kg, gypsum 1.2kg; Aluminum powder paste, sodium sulfate and sodium abietate in the above-mentioned materials are dissolved in 8Kg water and made admixture 1. The fly ash, lime powder and gypsum in the above materials are sent to the wheel mill for wheel grinding, and the admixture I is evenly added, and the wheel mills until the fineness is 40-60% after the 180-mesh standard sieve residue is 40-60%. The material is sent to the ball forming plate to form balls, and the ball blanks after ball formation are sent to the sieve for screening; the ball blanks with a diameter of 3 to 8 mm are steamed for 30 hours, and the fly ash unfired ceramsite is obtained.

[0026] b. Weigh 30kg of slag, 11kg of lime powder, and 3kg of de...

Embodiment 3

[0031]a. Proportionally weigh 0.3Kg of aluminum powder paste (the quality should meet the JC / T407-2000 standard of "Aluminum Powder Paste for Aerated Concrete", the same below), 0.8Kg of sodium sulfate, 0.3Kg of sodium rosinate, and 38kg of fly ash , calcium carbide slag 4kg, gypsum 1.3kg, the aluminum powder paste, sodium sulfate and sodium abietate in the above-mentioned material are dissolved in 8Kg water and made admixture I. The fly ash, calcium carbide slag and gypsum in the above materials are sent to the wheel mill for wheel grinding, and the admixture I is evenly added, and the wheel mills until the fineness is 40-60% after the 180-mesh standard sieve balance is 40-60%. The material is sent to the ball forming plate for ball forming, and the ball blank after ball forming is sent to the sieve for screening; the ball blank with a diameter of 3-8mm is cured for 20 hours by using a fly ash slag building material product curing machine to obtain powder. Coal ash unfired ce...

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PUM

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Abstract

The invention discloses a method for preparing highly-doped fly ash lightweight heat-insulation bricks. The preparation method comprises: preparing aluminum powder paste, sodium sulfate, sodium abietate, water, fly ash, carbide slag or lime powder and gypsum which are weighed in a ratio by weight into fly ash non-burnt ceramic particles; feeding fly ash, slag or coal gangue, carbide slag or lime powder, desulfurized gypsum or gypsum powder which are weighed in a ratio by weight into a wheel-grinding machine for wheel-grinding and obtaining a mixture; preparing rosin powder, sodium hydroxide, water together with gelatin and water together with triethanolamine which are weighed in a ratio by weight into admixture II; weighing the fly ash non-burnt ceramic particles, the mixture, cement and the admixture II in a ratio by weight and feeding the materials into a stirrer for stirring and adding water while stirring to adjust the water content of the materials to reach 17 to 21 percent; feeding the obtained product into a molding machine to prepare the obtained product into green brick bodies; and obtaining finished products through maintenance. The method has the advantages of low cost and no environmental pollution produced during production, and all standards of the lightweight heat-insulation bricks meet the requirements of national standards.

Description

technical field [0001] The invention relates to building bricks, in particular to a preparation method of high-volume fly ash light-weight thermal insulation bricks and the bricks produced. Background technique [0002] The current production of lightweight thermal insulation bricks needs to add a certain amount of light aggregates to make the products light and thermal. At the same time, a certain amount of aggregates, such as sand, stone, and perlite, must be added. Or sintered ceramsite, etc., to improve the compressive strength of lightweight insulation bricks. Such as CN1421415 discloses a kind of lightweight brick, and its raw material is composed of: 50~68 parts of cement, 20~40 parts of fly ash, 10~15 parts of perlite, 2~4 parts of water glass. CN1105346 discloses a thermal insulation brick and its production method. The raw material components of the thermal insulation brick are: 55-58% of fly ash, 25-35% of expanded perlite, 3-10% of waste polystyrene foam plastic...

Claims

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Application Information

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IPC IPC(8): C04B26/00C04B18/12C04B18/08
CPCY02W30/91
Inventor 杜世永
Owner 杜世永
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