Novel thermal-insulation material for building external wall

Abstract

The invention discloses a novel thermal-insulation material for a building external wall, which comprises the following components in parts by weight: 5-10 parts of coal ash, 6-12 parts of styrene resin, 4-10 parts of inorganic fiber, 8-12 parts of butyl acetate, 5-10 parts of aluminate refractory cement, 7-13 parts of calcium oxide, 3-8 parts of hollow glass micro-beads and 1-2 parts of gypsum powder. The novel thermal-insulation material for the building external wall has the advantages that all the raw material components are approximately neutral, cause little pollution to surroundings, are non-toxic, odorless, pollution-free, green and environment-friendly; the drying shrinkage ratio is small, the drying time is short, and the construction time is greatly shortened; and the dosage is small, the construction cost is low, the cost is greatly saved in the using process, and the using method is simple.

Description

technical field [0001] The invention relates to a novel building exterior wall thermal insulation material, which belongs to the field of building materials. Background technique [0002] When thermal insulation materials are used for building exterior walls, thermal insulation materials such as benzene board, extruded board or polyurethane foam are often used. Although these materials have better thermal insulation effects, their fire performance is poor and there are potential safety hazards; at the same time, when used For high-rise buildings, the wind pressure resistance is low; polyurethane foaming agent is used to foam polyurethane, and polyurethane foaming agent will produce toxic gas during the foaming process, and it cannot be completely eliminated after being used as heat insulation material, so The environmental protection factor is greatly reduced, and the cost is also high; rubber powder polystyrene particles and perlite particles are gradually being widely used...

AI Technical Summary

Problems solved by technology

[0002] When thermal insulation materials are used for building exterior walls, thermal insulation materials such as benzene board, extruded board or polyurethane foam are often used. Although these materials have better thermal insulation effects, their fire performance is poor and there are potential safety hazards; at the same time, when used For high-rise buildings, the wind pressure resistance is low; polyurethane foaming agent is used to foam polyurethane, and polyurethane foaming agent will produce toxic gas during the foaming process, and it cannot be completely eliminated after being used as heat insulation material, so The environmental protection factor is greatly reduced, and the cost is also high; rubber powder polystyrene particles and perlite particles are gradually being widely used. This insulation material is constructed on site, because the material is solid particles, which is easy to transport, and the method of use is simple during use. Excellent fireproof performance, low cost and other advantages, and no pollution, but there are also problems, that is, the material has poor thermal insulation performance, and the outer layer of the insulation layer needs to be coated with anti-cracking materials, and the insulation layer needs to be cured and dried before it can be used. Crack treatment, which requires a long drying time, so the construction period is long