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Autoclaved fly ash aerated concrete building block and production method thereof

A technology of aerated concrete and production method, which is applied in the directions of climate sustainability, other household appliances, sustainable waste treatment, etc., can solve the problems of unfavorable energy saving, emission reduction and environmental protection, large consumption of quicklime and cement, etc., and achieves significant economic benefits and efficiency. Social benefits, the effect of reducing dosage and increasing dosage

Inactive Publication Date: 2012-06-27
HENAN JIANYIDA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of quicklime and cement used in the existing processing technology is too large, which is not conducive to energy saving, emission reduction and environmental protection.

Method used

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  • Autoclaved fly ash aerated concrete building block and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The raw material composition of the autoclaved fly ash aerated concrete block of the present invention: represented by weight percentage, fly ash 75%, quicklime 18%, cement 5% and desulfurization gypsum 2%; Add foaming agent aluminum powder in addition, The amount of foaming agent aluminum powder added accounts for 0.08% of the total weight of the four raw materials of fly ash, quicklime, cement and desulfurized gypsum.

[0031] The production method of autoclaved fly ash aerated concrete block of the present invention, the detailed steps of described production method are as follows:

[0032] a, take various raw materials according to the raw material ratio ratio of the above-mentioned fly ash aerated concrete block;

[0033] b. First, pour 2025 kg of the raw material fly ash into the slurry storage tank, add water and stir and mix evenly to obtain a mixed slurry. The specific gravity of the slurry is 1.42 to 1.43. Adjust the fluidity of the mixed slurry to 28, Then a...

Embodiment 2

[0038] The raw material composition of the autoclaved fly ash aerated concrete block of the present invention: represented by weight percent, fly ash 78%, quicklime 16%, cement 4% and desulfurization gypsum 2%; Add foaming agent aluminum powder in addition, The amount of foaming agent aluminum powder added accounts for 0.07% of the total weight of the four raw materials of fly ash, quicklime, cement and desulfurized gypsum.

[0039] The production method of autoclaved fly ash aerated concrete block of the present invention, the detailed steps of described production method are as follows:

[0040] a, take various raw materials according to the raw material ratio ratio of the above-mentioned fly ash aerated concrete block;

[0041] b. First, pour 2106 kg of the raw material fly ash into the slurry storage tank, add water and stir and mix evenly to obtain a mixed slurry. The specific gravity of the slurry is 1.42-1.43. Adjust the fluidity of the mixed slurry to 30, Add 54kg of ...

Embodiment 3

[0046] The raw material composition of the autoclaved fly ash aerated concrete block of the present invention: represented by weight percentage, fly ash 73%, quicklime 17%, cement 7% and desulfurization gypsum 3%; Add foaming agent aluminum powder in addition, The amount of foaming agent aluminum powder added accounts for 0.09% of the total weight of the four raw materials of fly ash, quicklime, cement and desulfurized gypsum.

[0047] The production method of autoclaved fly ash aerated concrete block of the present invention, the detailed steps of described production method are as follows:

[0048] a, take various raw materials according to the raw material ratio ratio of the above-mentioned fly ash aerated concrete block;

[0049] b. First, pour 1971kg of the raw material fly ash into the slurry storage tank, add water and stir and mix evenly to obtain a mixed slurry. The specific gravity of the slurry is 1.42-1.43. Adjust the fluidity of the mixed slurry to 29, Then add 8...

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Abstract

The invention discloses an autoclaved fly ash aerated concrete building block and a production method thereof. A formula of the autoclaved fly ash aerated concrete building block comprises raw materials of, by weight, 72-78% of fly ash, 16-18% of quicklime, 4-7% of cement, 2-3% of desulfurized gypsum and additional foaming agent accounting for 0.07-0.09 wt% of a total weight of fly ash, quicklime, cement and desulfurized gypsum. The technical scheme of the invention for producing the autoclaved fly ash aerated concrete building block substantially reduces usage amount of the quicklime and the cement, increases usage amount of the fly ash and benefits energy saving, emission reduction and environmental protection. The autoclaved fly ash aerated concrete building block produced by the technical scheme of the invention has strength, unit weight, freezing resistance and thermal insulation performance reaching national standards (specified as detection data in a table 1). The autoclaved fly ash aerated concrete building block produced by the technical scheme of the invention has unit weight no more than 625 kg / m<3>, mean value of strength no less than 3.5 Mpa and freezing strength no less than 2.8 Mpa.

Description

technical field [0001] The invention relates to a building material, in particular to an autoclaved fly ash aerated concrete block and a production method thereof. Background technique [0002] Air-entrained concrete block is a new type of building material that is lightweight, porous, thermal insulation, good fire resistance, nailable, sawable, planable, and has certain earthquake resistance. As early as the early 1970s, my country began to produce this product, and it is widely used in high-rise buildings such as Shanghai International Hotel, Shanghai Building, Fuzhou Building, People's Bank of China Building, etc. It is an excellent new building material and has environmental protection properties. advantage. This kind of building material has the advantages of light weight, good thermal insulation performance, high strength, good seismic performance, good processing performance, good sound insulation performance, strong adaptability, etc., and has certain high temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/14C04B18/08B28B3/02B28B1/50
CPCY02W30/91
Inventor 祁永宏李金山汤琳张阳马宁宁张昆峰朱彦波
Owner HENAN JIANYIDA IND
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