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Powder ash air-entrained concrete processing technology

A technology for aerated concrete and processing technology, applied in the field of aerated concrete, can solve the problems affecting the quality of fly ash aerated concrete, unfavorable construction of houses, roads and bridges, collapse form and cracks, etc., to ensure the quality of use and the scope of application , The effect of saving the crushing and grinding process, preventing cracks and collapse

Active Publication Date: 2017-07-28
福建国强新型环保建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, it is mostly used as an admixture for aerated concrete, but the fly ash aerated concrete in the prior art will bubble in a large area after being aerated, and there will be mold collapse and cracks, which seriously affect the fly ash aerated concrete. The quality is not conducive to the construction of houses and roads and bridges

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A fly ash aerated concrete, the formula of the fly ash aerated concrete is as follows: 6 parts of cement, 3 parts of desulfurized gypsum, 5 parts of quicklime, 15 parts of fly ash, 1 part of triethanolamine solution, 3 parts of water-based polyurethane resin Parts, 2 parts of butyl acetate, 3 parts of hydroxyethyl cellulose, 6 parts of nitrite, 2 parts of zinc oxide, water to material ratio of 4:7.

[0025] The invention also provides a process for processing fly ash aerated concrete, which includes the following steps:

[0026] S1. Put the fly ash and quicklime into the ball mill, then add the triethanolamine solution and polish for 15 minutes, then put the polished fly ash and quicklime into the mixer, the effective content of CaO after the quicklime grinding is 55%, the mixer The rotating speed of the inner mixer is 6000rpm / min, and the quicklime is added into the mixer in the form of segmented injection;

[0027] S2. Add cement, water-based polyurethane resin and desulfur...

Embodiment 2

[0033] A fly ash aerated concrete, the formula of the fly ash aerated concrete is as follows: 8 parts of cement, 5 parts of desulfurized gypsum, 7 parts of quicklime, 18 parts of fly ash, 1.5 parts of triethanolamine solution, water-based polyacrylic resin 4 parts, 3 parts butyl acetate, 4 parts hydroxyethyl cellulose, 7 parts nitrite, 3 parts zinc oxide, and the ratio of water to material is 4:7.

[0034] The invention also provides a process for processing fly ash aerated concrete, which includes the following steps:

[0035] S1. Put the fly ash and quicklime into the ball mill, then add the triethanolamine solution and grind it for 20 minutes, then put the ground fly ash and quicklime into the mixer, the effective content of CaO after the quicklime grinding is 655%, the mixer The rotational speed of the internal mixer is 7000rpm / min, and the quicklime is added into the mixer in the form of segmented injection;

[0036] S2. Then add cement, water-based polyacrylic resin and desulf...

Embodiment 3

[0042] A fly ash aerated concrete, the formula of the fly ash aerated concrete is as follows: cement 10 parts, phosphogypsum 8 parts, quicklime 9 parts, fly ash 20 parts, triethanolamine solution 2 parts, water-based epoxy resin 5 parts, 24 parts of corn oil, 5 parts of water-soluble polyacrylate, 8 parts of sulfur dioxide, 4 parts of magnesium oxide, and the ratio of water to material is 4:7.

[0043] The invention also provides a process for processing fly ash aerated concrete, which includes the following steps:

[0044] S1. Put the fly ash and quicklime into the ball mill, then add the triethanolamine solution and grind for 25 minutes, and then put the polished fly ash and quicklime into the mixer. After the quicklime is ground, the effective content of CaO is 75%, the mixer The rotating speed of the inner mixer is 8000rpm / min, and the quicklime is added into the mixer in the form of segmented injection;

[0045] S2. Then add cement, water-based epoxy resin and phosphogypsum to ...

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Abstract

The invention discloses a powder ash air-entrained concrete processing technology. The formula of the powder ash air-entrained concrete comprises the following components: 6-10 parts of cement, 3-8 parts of gypsum, 5-9 parts of quick lime, 15-20 parts of powdered ash, 1-2 parts of a grinding aid, 3-5 parts of waterborne polymer resin, 2-4 parts of an antifoaming agent, 3-5 parts of a thickening agent, 6-8 parts of a preservative and 2-4 parts of a stabilizer, wherein a ratio of water to material is 4:7. The formula disclosed by the invention is simple and reasonable in structural design, convenient to operate, short in production period, low in processing cost, capable of realizing recycling, reducing waste and improving quality and applicable performance of the powder ash air-entrained concrete, safe and stable and contributes to wide promotion and popularization.

Description

Technical field [0001] The invention belongs to the technical field of aerated concrete, and more specifically, relates to a process for processing fly ash aerated concrete. Background technique [0002] Fly ash is fine ash collected from the flue gas after coal combustion. 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. Fly ash is one of the large industrial waste residues in my country. With the development of the power industry, Fly ash emissions from coal power plants are increasing year by year. In thermal power plants and urban central heating boilers that use pulverized coal as fuel, more than 90% of them are wet discharge ash, which has lower activity than dry ash, and consumes water and electricity, polluting the environment, and the toxic chemicals in it will also harm the human body. Biological hazards are caused. If a large...

Claims

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Application Information

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IPC IPC(8): C04B28/02
CPCC04B28/02C04B22/145C04B22/064C04B18/08C04B24/122C04B24/282C04B24/045C04B24/383C04B22/085C04B14/30C04B24/2641C04B22/144C04B24/281C04B24/08C04B22/06C04B22/066
Inventor 朱国强
Owner 福建国强新型环保建材有限公司
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