A kind of lightweight foamed cement composite thermal insulation material and preparation method thereof

Abstract

The invention discloses a lightweight foam cement composite thermal insulation material, and a preparation method thereof, and belongs to the technical field of building material. The lightweight foamcement composite thermal insulation material is composed of 60 to 90 parts of sulphate aluminium cement, 10 to 15 parts of modified foam phenolic aldehyde powder, 15 to 20 parts of fly ash, 1 to 2 parts of nanometer silicon oxide powder, 3 to 7 parts of hydrogen peroxide, 0.5 to 1.5 parts of calcium formate, 0.2 to 1 part of polypropylene fiber, 0.5 to 1.5 parts of calcium stearate, and 0.01 to 0.1 part of lithium carbonate. The lightweight foam cement composite thermal insulation material is an inorganic material, is excellent in flame resistance, belongs to A grade non-combustible materials, and is long in service life; and the service life is as long as that of buildings.

Description

technical field [0001] The invention relates to a construction engineering material, in particular to a lightweight foamed cement composite thermal insulation material. Background technique [0002] my country's building energy consumption accounts for one-third of the country's total energy consumption, and the proportion of building wall energy loss is as high as 40% to 45%. Therefore, building environmental protection and energy saving have become an inevitable trend in today's society. In order to achieve sustainable development and reduce energy loads, both national and local governments have issued relevant policies to vigorously develop green buildings. The most important thing in building energy conservation is the use of thermal insulation materials. The use of thermal insulation materials with high energy-saving rates can effectively achieve building energy conservation. At present, external wall insulation materials are divided into organic foam materials and ino...

AI Technical Summary

Problems solved by technology

At present, external wall insulation materials are divided into organic foam materials and inorganic foam materials, among which the external wall insulation materials made of organic insulation materials such as polystyrene foam and rigid polyurethane foam are the main ones, which are light in weight and low in thermal conductivity, but It has a low ignition point and is flammable. Not only can it not meet the requirements of Class A fire protection for building insulation materials, but also the smoke generated after combustion is toxic and will cause harm to the human body.

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