Insulation board for building external wall

Abstract

The invention discloses an insulation board for a building external wall, comprising a polystyrene board and a concrete protective layer cladded outside the polystyrene board, wherein the weight ratio of the polystyrene board to the concrete protective layer is (2-3):100; and the concrete protective layer is prepared from the following raw materials in parts by weight: 200-350 parts of cement, 80-120 parts of yellow sand, 30-80 parts of iron mine tailings, 30-80 parts of pebbles, 20-50 parts of broken brick, 10-40 parts of perlite, 20-50 parts of oil shale, 2-10 parts of nano calcium carbonate, 2-10 parts of silica fume, 20-50 parts of polystyrene particles, 5-15 parts of polycarbonate, 1-3.8 parts of neoprene latex, 0.5-1 part of a water reducer, 0.1-0.2 parts of cellulose ether, 0.1-0.5 part of an air entraining agent, 0.05-0.1 part of boric acid, 0.2-1 part of polyvinyl alcohol fibers, 0.1-1 part of mullite fibers and 60-110 parts of water.

Description

technical field [0001] The invention relates to the technical field of building panels, in particular to a thermal insulation panel for building exterior walls. Background technique [0002] At present, the exterior wall materials of existing building buildings in my country mainly include clay solid bricks, clay hollow bricks, porous bricks, shale bricks, concrete blocks, unfired cement bricks, etc. The above exterior wall materials generally have high thermal conductivity. , poor thermal insulation performance, and poor fireproof performance cannot meet the country's requirements for building energy conservation. Therefore, there is an urgent need for a new type of wall material to meet the new demands of the construction market. Contents of the invention [0003] Based on the technical problems in the background technology, the present invention proposes a thermal insulation board for building exterior walls, which is light in weight, good in thermal insulation performa...

AI Technical Summary

Problems solved by technology

[0002] At present, the exterior wall materials of existing building buildings in my country mainly include clay solid bricks, clay hollow bricks, porous bricks, shale bricks, concrete blocks, unfired cement bricks, etc. The above exterior wall materials generally have high thermal conductivity. , poor thermal insulation performance, and poor fireproof performance, which cannot meet the country's requirements for building energy conservation