Insulation board of concrete exterior wall

Abstract

The invention relates to an insulation board of a concrete exterior wall, in particular to the insulation board of the concrete exterior wall at a heat bridge part, which is used in match with the exterior wall body constructed by energy-saving insulation building blocks. The invention is prepared by the following steps: raw materials are mixed, molded by extrusion to obtain the insulation board molding product which is subjected to steam curing and drying to obtain the insulation board molding product of the concrete exterior wall; the invention is characterized in that: before the invention is molded by extrusion, steel mesh is put into the raw materials followed by being molded by extrusion to be the insulation board molding product; the raw materials comprise the following components according to weight percentage: 235-242 parts of silicate cement, 65-67 parts of expanded perlite, 43-45 parts of ceramsite, 80-83 parts of slag, 4-2 parts of plant ash, 1.5-2 parts of wool felt fiber, 0.5-1.0 parts of cloth fiber, 0.5-1.0 parts of bamboo fiber and 94-96 parts of water. The invention has good insulation property, can effectively reduce the heat bridge effect of the exterior wall constructed by energy-saving insulation building blocks, has high breaking strength and can have the same service life with the exterior wall constructed by insulation blocks.

Description

technical field [0001] The invention relates to a thermal insulation board for a concrete outer wall of a building, in particular to a thermal insulation board for a concrete outer wall at a thermal bridge position. Background technique [0002] In the prior art, the development and research of energy-saving exterior walls of houses have been extensively carried out. The method is to smear a certain thickness of thermal insulation mortar or external insulation boards on the exterior wall surfaces of ordinary block walls and concrete columns. Generally, solid clay bricks, hollow bricks, aerated concrete blocks, etc. are used; another way is to directly use energy-saving heat-insulating blocks to build the exterior walls, instead of applying heat-insulating mortar or external insulation boards on the exterior walls. [0003] The above-mentioned methods all have better effects on energy-saving and heat-preservation of the exterior walls, especially the latter method--the exteri...

AI Technical Summary

Problems solved by technology

However, the external walls made of energy-saving and heat-insulating blocks also have the problem of thermal bridges that reduce the effect of energy-saving and heat preservation.

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