Foamed concrete heat insulation board

Abstract

The invention relates to the technical field of concrete, in particular to a foamed concrete heat insulation board which is prepared from, by weight, 25-45 parts of coal ash, 15-35 parts of cement, 15-30 parts of fine sand, 5-12 parts of diatomite, 3-15 parts of light calcium carbonate, 3-12 parts of composite fibers, 15-48 parts of light aggregates, 3-8 parts of waste rubber particles, 1-3 partsof first foaming agents, 0.5-1.5 parts of water reducing agents and 0-5 parts of other additives, and the composite fibers are prepared from, by weight, 10-30 parts of polymer powder, 0.6-10 parts ofsecond foaming agents and 5-15 parts of alumina silicate fibers. The foamed concrete heat insulation board has the advantages of light weight, high strength and good weather resistance.

Description

technical field

[0001] The invention relates to the technical field of concrete and its preparation, in particular to a foamed concrete insulation board. Background technique

[0002] Building energy conservation is a very important aspect of realizing a low-carbon economy. my country will continue to vigorously implement building energy conservation and emission reduction for a long period of time, develop green buildings and circular economy, and green building materials will become the main direction of development. At present, the most common concrete insulation board used in industrial and civil buildings, although its strength (generally 20-30MPa) can basically meet the requirements of the building structure, is relatively heavy.

[0003] Foam concrete has a variety of excellent properties, such as light weight, flame retardant and heat insulation, good thermal insulation and sound insulation performance, and the ability to adjust indoor humidity just meets the requir...

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