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Unsteamed concrete air-filled insulating brick produced from building waste, and production method thereof

A construction waste, no steam curing technology is applied in the fields of building thermal insulation blocks and sound insulation inner wall partition blocks to achieve the effects of reducing construction strength, good sound insulation and high strength

Inactive Publication Date: 2012-08-01
ANSHAN QUANYIJU ENVIRONMENTAL PROTECTION BUILDINGMATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the concrete insulation bricks in the prior art need to be heated and cured in a heating kettle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A non-steamed concrete aerated insulation brick produced by using construction waste, which is prepared from the following raw materials in parts by weight: 40 parts of Portland cement, 30 parts of aggregate, 10 parts of CaO, 10 parts of CaSO 4 5 parts, 5 parts of carbonamide, 5 parts of polyvinyl alcohol, 10 parts of hydroxypropyl methylcellulose, 5 parts of calcium formate, 10 parts of foaming agent aluminum powder, and 50 parts of water; the aggregate is construction waste, Particle size≤5mm.

[0015] The method for producing non-steam curing concrete aerated insulation bricks by using construction waste is prepared by the steps in the following order:

[0016] (1) crush the construction waste as aggregate, sieve, and control the particle size below 5mm, add aggregate, CaO, CaSO in portland cement according to the stated parts by weight 4 , carbonamide and mixing and stirring to obtain a dry powder mixture;

[0017] (2) Mix polyvinyl alcohol, hydroxypropyl methylce...

Embodiment 2

[0021] A non-steamed concrete aerated insulation brick produced by using construction waste, which is prepared from the following raw materials in parts by weight: 35 parts of cement, 25 parts of aggregate, 9 parts of CaO, 9 parts of CaSO 4 4 parts, 4 parts of carboxamide, 4 parts of polyvinyl alcohol, 7 parts of hydroxypropyl methylcellulose, 4 parts of calcium formate, 8 parts of foaming agent, 60 parts of added water; the cement is ordinary silicate, high Aluminum cement; the aggregate is construction waste with a particle size of ≤5mm; the foaming agent is aluminum powder or aluminum powder paste.

[0022] The method for producing non-steam curing concrete aerated insulation bricks by using construction waste is prepared by the steps in the following order:

[0023] (1) crush the construction waste as aggregate, sieve, and control the particle size below 5mm, add aggregate, CaO, CaSO in cement according to the stated parts by weight 4 , carbonamide and mixing and stirring...

Embodiment 3

[0028] A non-steamed concrete aerated insulation brick produced by using construction waste, which is prepared from the following raw materials in parts by weight: 30 parts of cement, 20 parts of aggregate, 8 parts of CaO, 8 parts of CaSO 4 3 parts, 3 parts of carbonamide, 3 parts of polyvinyl alcohol, 5 parts of hydroxypropyl methylcellulose, 3 parts of calcium formate, 6 parts of foaming agent, and 40 parts of added water; the cement is ordinary silicate, high Aluminum cement, fly ash cement; the aggregate is construction waste, particle size ≤ 5mm; the foaming agent is 4 parts of hydrogen peroxide and 2 parts of sodium bicarbonate.

[0029] The method for producing non-steam curing concrete aerated insulation bricks by using construction waste is prepared by the steps in the following order:

[0030] (1) crush the construction waste as aggregate, sieve, and control the particle size below 5mm, add aggregate, CaO, CaSO in cement according to the stated parts by weight 4 , c...

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Abstract

The invention relates to an unsteamed concrete air-filled insulating brick produced from building waste, and a production method of the insulating brick. The insulating brick is prepared from the raw materials in parts by weight: 30-40 parts of cement, 20-30 parts of aggregate, 8-10 parts of CaO, 3-5 parts of CaSO4, 3-5 parts of carbamide, 3-5 parts of polyvinyl alcohol, 5-10 parts of cellulose hydroxypropyl methyl, 3-5 parts of calcium formate, 5-10 parts of foaming agent and 40-60 parts of external water, wherein cement contains one or more than two of common silicate, high-alumina cement, fly ash cement, alumina cement and aluminate cement; the aggregate is building waste with the particle size being less than or equal to 5mm; and the foaming agent contains one or more than two of aluminium powder, aluminium powder paste, hydrogen peroxide and sodium hydrogen carbonate. The unsteamedconcrete insulating brick is prepared by material preparing, mixing, injection molding and curing. Therefore, the land occupation and the living environmental pollution caused by the building waste can be effectively reduced, and the produced unsteamed concrete air-filled insulating brick has the advantages of good heat insulation effect, light weight, good sound insulation effect and high strength, and can be nailed and sawed; and the construction intensity can be reduced.

Description

technical field [0001] The invention relates to a building material, in particular to a non-steam curing concrete insulation brick produced by using construction waste and a production method thereof, which are mainly used for building insulation blocks and sound-insulating inner wall partition blocks. Background technique [0002] At present, in the production of concrete aerated insulation bricks, in addition to adding a certain amount of cement and foaming agent, in order to improve the compressive strength of the insulation bricks, a certain amount of aggregates, such as sand, stone perlite, etc., need to be added. And the concrete insulation brick in the prior art needs the process of heating and curing in the heating kettle. With the acceleration of urbanization, a large amount of construction waste is generated in the process of building demolition, reconstruction, expansion, and residential decoration. These construction wastes cannot be used to seriously pollute the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/04C04B28/06C04B38/02C04B18/16
CPCY02W30/91
Inventor 沈芳贾永军刘畅刘思宇
Owner ANSHAN QUANYIJU ENVIRONMENTAL PROTECTION BUILDINGMATERIAL
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