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Energy-saving and heat-preservation material for building and preparation process thereof

A thermal insulation material and building energy-saving technology, which is applied in the field of building materials, can solve problems such as imperfect preparation processes, and achieve the effects of improved mechanical properties, good thermal insulation performance, and low price

Inactive Publication Date: 2019-10-11
HENAN UNIV OF URBAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the field of new building materials, the use of waste coal gangue and plant straw in the raw material preparation of new building materials is rarely used, and the preparation process is not perfect. Therefore, we propose a building energy-saving thermal insulation material and its preparation process , can make use of coal gangue and plant straw waste, while reducing the harm to the ecological environment

Method used

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  • Energy-saving and heat-preservation material for building and preparation process thereof

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Effect test

Embodiment 1

[0034] In this embodiment, a building energy-saving thermal insulation material is made of the following components in parts by weight: 32 parts of ordinary Portland cement, 52 parts of coal gangue powder, 45 parts of rice straw fiber, 20 parts of water glass, sodium hexametaphosphate 0.8 parts, 0.8 parts of methylene bisacrylamide, 70 parts of water.

[0035] Specifically, the preparation process of the above-mentioned building energy-saving thermal insulation materials is carried out according to the following steps:

[0036] S1, Preparation of coal gangue powder

[0037] The coal gangue is calcined at 550°C for 4 hours, and then the calcined sintered material is ground by a ball mill, and the coal gangue powder with a particle size of 80 mesh is screened out with a fine mesh sieve;

[0038] S2, preparation of master mix

[0039] 32 parts of ordinary Portland cement and 52 parts of S2 obtained coal gangue powder and 70 parts of water were successively added to the reaction...

Embodiment 2

[0047] In this embodiment, a building energy-saving thermal insulation material is made of the following components in parts by weight: 25 parts of ordinary Portland cement, 67 parts of coal gangue powder, 37 parts of corn straw fiber, 15 parts of water glass, sodium hexametaphosphate 1 part, 0.5 parts of methylenebisacrylamide, 80 parts of water.

[0048] Specifically, the preparation process of the above-mentioned building energy-saving thermal insulation materials is carried out according to the following steps:

[0049] S1, Preparation of coal gangue powder

[0050] The coal gangue is calcined at 500°C for 5 hours, and then the calcined sintered material is ground by a ball mill, and then the coal gangue powder with a particle size of 120 mesh is screened out with a fine mesh sieve;

[0051] S2, preparation of master mix

[0052] 25 parts of ordinary portland cement and 67 parts of coal gangue powder obtained from S2 and 80 parts of water were successively added to the r...

Embodiment 3

[0060] In this embodiment, a building energy-saving thermal insulation material is made of the following components in parts by weight: 40 parts of ordinary Portland cement, 45 parts of coal gangue powder, 55 parts of corn straw fiber, 28 parts of water glass, sodium hexametaphosphate 0.5 parts, 1 part of methylenebisacrylamide, 60 parts of water.

[0061] Specifically, the preparation process of the above-mentioned building energy-saving thermal insulation materials is carried out according to the following steps:

[0062] S1, Preparation of coal gangue powder

[0063] The coal gangue is calcined at 600°C for 3 hours, and then the calcined sintered material is ground by a ball mill, and then the coal gangue powder with a particle size of 200 mesh is screened out with a fine mesh sieve;

[0064] S2, preparation of master mix

[0065] 40 parts of ordinary Portland cement and 45 parts of S2 obtained coal gangue powder and 60 parts of water were successively added to the reacti...

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Abstract

The invention belongs to the technical field of building materials, and discloses an energy-saving and heat-preservation material for a building. The material is prepared from, by weight, 25-40 partsof cement, 45-67 parts of coal gangue powder, 37-55 parts of plant fiber, 15-28 parts of water glass, 0.5-1 part of a dispersant, 0.5-1 part of a cross-linking agent and 60-80 parts of water. The invention further provides a preparation method of the energy-saving and heat-preservation material for the building. The coal gangue is rationally used, the environmental pollution is reduced, the cost of the coal gangue is cheap, the coal gangue powder is prepared after the coal gangue is calcined and activated, a pre-mixed solution is cross-linked with the plant fiber, and the strength, heat preservation performance and flame retardant performance of the heat-preservation material are enhanced.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a building energy-saving thermal insulation material and a preparation process thereof. Background technique [0002] Coal gangue is solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with coal seams during the coal formation process. In order to eliminate pollution, since the 1960s, many countries began to pay attention to the treatment and utilization of coal gangue. But so far, the use of coal gangue is not strong enough, the technology is not perfect, the regional development is unbalanced, and the impact on the environment is still very serious. [0003] On the other hand, the degree of resource utilization of plant straw waste in my country is low, generally less than 20%, while the remaining 80% is discharged as waste to cause environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B20/04C04B18/12C04B18/24C04B111/28C04B111/52
CPCC04B20/04C04B28/26C04B2111/28C04B2111/52C04B2201/32C04B2201/50C04B7/02C04B18/24C04B22/16C04B18/12C04B24/124Y02W30/91
Inventor 马政伟董晓峰王仪武海荣王松威郜艳轲周彦兵
Owner HENAN UNIV OF URBAN CONSTR