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Autoclaved fly-ash brick and making technology thereof

A technology of autoclaved fly ash bricks and fly ash, which is applied in the field of brick production technology, can solve the problems of poor vibration resistance, low thermal conductivity, and good heat preservation effect, so as to increase vibration resistance and compactness, and improve plasticity , good thermal insulation effect

Active Publication Date: 2016-11-23
安徽中城新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of autoclaved fly ash brick and its manufacturing process aiming at the defects of poor vibration resistance, poor compactness, high thermal conductivity and general heat preservation effect in the prior art. The autoclaved fly ash brick has good vibration resistance, good compactness, low thermal conductivity and good heat preservation effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An autoclaved fly ash brick, which consists of the following components by mass: 40 parts of fly ash, 5 parts of stone chips, 20 parts of aeolian sand, 4 parts of slag, 10 parts of calcium oxide, and 1 part of desulfurized gypsum. The particle size is larger than that of fly ash, and the particle size of calcium oxide is 180 mesh.

[0018] The preparation steps of the autoclaved fly ash brick composed of the above components are as follows:

[0019] 1) Mixing and stirring: Mix and stir fly ash, stone chips, aeolian sand, slag, calcium oxide, and desulfurized gypsum in sequence according to the proportion, and add a small amount of water during the stirring process to make the mixed materials stick together ;

[0020] 2) Digestion: Send the mixed and stirred materials into the digestion tank, and carry out digestion treatment at 20°C;

[0021] 3) Rolling: Send the digested mixture into the rolling machine and use rolling wheels for rolling;

[0022] 4) Compression mol...

Embodiment 2

[0026] An autoclaved fly ash brick, which consists of the following components by mass: 45 parts of fly ash, 6 parts of stone chips, 22 parts of aeolian sand, 5 parts of slag, 11 parts of calcium oxide, and 1.5 parts of desulfurized gypsum. The particle size is larger than that of fly ash, and the particle size of calcium oxide is 190 mesh.

[0027] The preparation steps of the autoclaved fly ash brick composed of the above components are as follows:

[0028] 1) Mixing and stirring: Mix and stir fly ash, stone chips, aeolian sand, slag, calcium oxide, and desulfurized gypsum in sequence according to the proportion, and add a small amount of water during the stirring process to make the mixed materials stick together ;

[0029] 2) Digestion: Send the mixed and stirred materials into the digestion tank, and carry out digestion treatment at 22°C;

[0030] 3) Rolling: Send the digested mixture into the rolling machine and use rolling wheels for rolling;

[0031] 4) Compression ...

Embodiment 3

[0035] An autoclaved fly ash brick, consisting of the following components by mass: 40-50 parts of fly ash, 7 parts of stone chips, 25 parts of aeolian sand, 6 parts of slag, 12 parts of calcium oxide, and 2 parts of desulfurized gypsum, wherein The particle size of slag is larger than that of fly ash, and the particle size of calcium oxide is 200 mesh.

[0036] The preparation steps of the autoclaved fly ash brick composed of the above components are as follows:

[0037] 1) Mixing and stirring: Mix and stir fly ash, stone chips, aeolian sand, slag, calcium oxide, and desulfurized gypsum in sequence according to the proportion, and add a small amount of water during the stirring process to make the mixed materials stick together ;

[0038] 2) Digestion: Send the mixed and stirred materials into the digestion tank, and carry out digestion treatment at 25°C;

[0039] 3) Rolling: Send the digested mixture into the rolling machine and use rolling wheels for rolling;

[0040] 4)...

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Abstract

The invention discloses an autoclaved fly-ash brick and a making technology thereof. The autoclaved fly-ash brick is prepared from, by mass, 40-50 parts of fly ash, 5-7 parts of stone chips, 20-25 parts of aeolian sand, 4-6 parts of furnace slag, 10-12 parts of calcium oxide and 1-2 parts of desulphurization gypsum. The making technology includes the steps of mixing, stirring, dispelling, grinding, pressing and molding and high-pressure oxygen steaming, and the finished product is obtained. According to the autoclaved fly-ash brick and the making technology thereof, the calcium oxide and the desulphurization gypsum are put into the mixture, the plasticity of mixture slurry is improved, and the certain delayed coagulation effect is achieved; as the stone chips, the furnace slag are mixed into the made ingredients, the vibration resistance and the compaction performance of the autoclaved fly-ash brick are effectively increased, the heat conductivity coefficient is low, and the heat preservation effect is good.

Description

technical field [0001] The invention relates to a brick manufacturing process, in particular to an autoclaved fly ash brick and its manufacturing process. Background technique [0002] Autoclaved fly ash bricks use power plant fly ash, quicklime and deglazed gypsum as the main raw materials, and add a certain amount of cinder or other aggregates. A new type of wall material made after curing. Autoclaved fly ash brick is also a new type of building material that is energy-saving and waste-effective. It saves energy in the production process compared with the production of general building materials. However, the current autoclaved fly ash brick is too much for waste utilization, which leads to Fly ash bricks generally have defects such as poor vibration resistance, poor compactness, high thermal conductivity, and general thermal insulation effect. Contents of the invention [0003] The object of the present invention is to provide a kind of autoclaved fly ash brick and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/08C04B18/30
CPCY02W30/91
Inventor 方什健
Owner 安徽中城新型建材有限公司
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