A composite matrix self-insulation block and its preparation method

Abstract

The invention relates to a composite-based self-heat-insulation building block. The composite-based self-heat-insulation building block comprises the following components in parts by weight: 240 to 500 parts of semi-hydrated gypsum, 80 to 200 parts of silicate cement, 160 to 300 parts of coal ash, 8 to 16 parts of a high-efficiency water reducing agent SM, and 0.5 to 1.6 parts of foaming agent. The composite-base self-heat-insulation building block is prepared by adding the high-efficiency water reducing agent SM and the foaming agent into 800 to 880 parts of water to obtain a mixture; adding the semi-hydrated gypsum, the silicate cement and the coal ash into the mixture; stirring the mixture, casting and molding to harden the mixture; drying or naturally curing to obtain the composite-based self-heat-insulation building block. The prepared composite-based self-heat-insulation building block has light weight, high compressive strength, a good heat insulation effect, high water resistance and a high softening coefficient, and is an excellent material for an energy-saving wall body of a building.

Description

technical field [0001] The invention relates to a composite base self-insulation block and a preparation method thereof. Background technique [0002] At present, among the wall materials in our country, traditional wall materials still occupy a dominant position, and there are problems such as backward industrial structure, high production energy consumption, and environmental pollution. In recent years, although some thermal insulation blocks have appeared, the thermal insulation performance is not ideal, and according to the characteristics of building materials, while providing thermal insulation performance of materials, the performance and indicators of materials in terms of light weight, strength and convenient construction cannot be reduced. , because wall insulation and its strength, lightness and other properties are often contradictory, this poses a greater challenge to the development of wall insulation materials. Contents of the invention [0003] The object ...

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Problems solved by technology

[0002] At present, among the wall materials in our country, traditional wall materials still occupy a dominant position, and there are problems such as backward industrial structure, high energy consumption in production, and environmental pollution.

In recent years, although some thermal insulation blocks have appeared, the thermal insulation performance is not ideal, and according to the characteristics of building materials, while providing thermal insulation performance of materials, the performance and indicators of materials in terms of light weight, strength and convenient construction cannot be reduced. , because wall insulation and its strength, lightness and other properties are often contradictory, which poses a great challenge to the development of wall insulation materials

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