Light-weight thermal-insulation concrete material and preparation method thereof

A concrete and lightweight technology, which is applied in the direction of clay preparation devices, chemical instruments and methods, manufacturing tools, etc., can solve problems that affect the strength of concrete and fail to meet high architectural standards, and achieve increased strength, high strength requirements, and improved microstructure Effect

Inactive Publication Date: 2020-05-29
江苏金雷建材有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Patent application CN108203312A discloses a lightweight foamed concrete, including two parts, a solid component and an external component, wherein the solid component is composed of Portland cement and fly ash, and the external component is a melamine water reducer , coagulant and composite foaming agent (foaming components, foam stabilizing components, foam stabilizing aids and additives, etc.), the density of the foamed concrete is reduced, but the foaming process is relatively rough and fast, and will A large number of relatively large pores are formed, which seriously affects the strength of concrete and cannot meet the high standards of construction

Method used

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  • Light-weight thermal-insulation concrete material and preparation method thereof
  • Light-weight thermal-insulation concrete material and preparation method thereof

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Embodiment 1

[0028] A method for preparing a light-weight heat-preserving concrete material, the steps of which are: adding 0.1 kg of manganese dioxide to 1 kg of hydrogen peroxide with a mass concentration of 30%, adding prefabricated slurry while stirring, stirring evenly, vibrating to form, and curing, that is Obtain the described a kind of lightweight thermal insulation concrete material;

[0029] Wherein, the prefabricated slurry includes three parts: A slurry, B slurry and C slurry. When feeding, add A slurry first, stir evenly, and then add B slurry while stirring, and add B slurry immediately after the feeding is completed. C slurry; the A slurry is prepared by the following method: first add 0.02kg petroleum coke powder and 0.05kg fly ash to 0.1kg water, ball mill, then add the mixture of 0.15kg cement and 0.2kg sand, Stir and mix, continue to add 0.21kg light aggregate, 0.001kg admixture, 0.0002kg ammonium persulfate, and stir evenly to get it. The B slurry is 0.08kg aniline hydr...

Embodiment 2

[0039] A method for preparing a light-weight heat-preserving concrete material, the steps of which are: adding 0.2 kg of manganese dioxide to 1 kg of hydrogen peroxide with a mass concentration of 40%, adding prefabricated slurry while stirring, stirring evenly, vibrating to form, and curing, namely Obtain the described a kind of lightweight thermal insulation concrete material;

[0040] Wherein, the prefabricated slurry includes three parts: A slurry, B slurry and C slurry. When feeding, add A slurry first, stir evenly, and then add B slurry while stirring, and add B slurry immediately after the feeding is completed. C slurry; the A slurry is prepared by the following method: first add 0.03kg petroleum coke powder and 0.06kg fly ash to 0.15kg water, ball mill, then add the mixture of 0.22kg cement and 0.25kg sand, Stir and mix, continue to add 0.24kg light aggregate, 0.002kg admixture, 0.0003kg ammonium persulfate, and stir evenly to get it. The B slurry is 0.11kg aniline hyd...

Embodiment 3

[0050] A method for preparing a light-weight heat-preserving concrete material, the steps of which are: adding 0.2 kg of manganese dioxide to 1 kg of hydrogen peroxide with a mass concentration of 30%, adding prefabricated slurry while stirring, stirring evenly, vibrating to form, and curing, namely Obtain the described a kind of lightweight thermal insulation concrete material;

[0051] Wherein, the prefabricated slurry includes three parts: A slurry, B slurry and C slurry. When feeding, add A slurry first, stir evenly, and then add B slurry while stirring, and add B slurry immediately after the feeding is completed. C slurry; the A slurry is prepared by the following method: first add 0.02kg petroleum coke powder and 0.06kg fly ash to 0.1kg water, ball mill, then add the mixture of 0.22kg cement and 0.2kg sand, Stir and mix, continue to add 0.24kg light aggregate, 0.001kg admixture, 0.0003kg ammonium persulfate, and stir evenly to get it. The B slurry is 0.08kg aniline hydro...

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Abstract

The invention provides a light-weight thermal-insulation type concrete material and a preparation method thereof. The preparation method of the light-weight thermal-insulation concrete material comprises the following specific steps: adding 0.1-0.2 part by weight of manganese dioxide into 1 part by weight of hydrogen peroxide with the mass concentration of 30-40%, adding the prefabricated slurry while stirring, uniformly stirring, carrying out vibration molding, and curing to obtain the light-weight thermal-insulation concrete material. Hydrogen peroxide is decomposed to generate gas under thecatalytic action of manganese dioxide, so that micro pores are uniformly formed in concrete, and light weight thermal insulation are achieved; meanwhile, a three-dimensional network structure is formed in a cement gel network by adjusting slurry components and forming polyaniline in the preparation process, the strength of the concrete is improved, the high-strength requirement of a building canbe met, and the application prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of new concrete materials, and in particular relates to a light-weight heat-preserving concrete material and a preparation method thereof. Background technique [0002] Concrete is widely used in the field of construction as the main building material. More than 90% of domestic and foreign many, high-rise buildings are reinforced concrete structures at present, and a few steel structure buildings, its enclosing structure comprises outer wall and building (roof) cover and also mainly is that concrete material is built. However, the thermal insulation performance of concrete is poor, and the thermal conductivity is about 1.7W / (m·K), which does not meet the national energy-saving requirements for housing construction. Usually, it is necessary to make a thermal insulation layer on the outer or inner surface of the wall to meet the relevant requirements. requirements. [0003] However, compared with the insulat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/08C04B20/02C04B38/02B28B1/04B28C5/00C04B111/40
CPCB28B1/045B28C5/00C04B20/023C04B28/04C04B28/08C04B38/02C04B2111/40C04B14/022C04B18/08C04B14/06C04B22/14C04B24/121C04B22/122C04B14/204C04B18/10C04B18/12C04B14/106C04B18/141C04B24/18C04B22/08C04B24/122C04B22/068C04B2103/302
Inventor 刘利张云峰陈谦益
Owner 江苏金雷建材有限公司
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