A kind of building insulation dry powder mortar

Abstract

A building thermal insulation dry powder mortar belongs to a building thermal insulation material. The weight ratio of a dry powder to water is 1: 1.5. The dry powder is prepared by mixing 450 parts by mass of ordinary portland cement, 70 parts by mass of a calcined gypsum powder, 37.5 parts by mass of a redispersible emulsion powder, 15 parts by mass of fine xylem fibers, 13 parts by mass of polypropylene staple fibers, 10 parts by mass of slaked lime, 10 parts by mass of sierozem, 10 parts by mass of heavy calcium carbonate, 3 parts by mass of hydroxypropyl methyl cellulose, 364 parts by mass of a calcined expanded perlite and 17.5 parts by mass of a premixed auxiliary agent. The thermal insulation building dry powder mortar has the advantages of strong thermal insulation, strong bond with walls, high compressive strength, strong drawing force, excellent weather resistance, and environmental protection, and also has the advantages of fire resistance, cracking resistance, leakage resistance, moisture resistance, sliding resistance, earthquake resistance and the like.

Description

technical field [0001] The invention belongs to building thermal insulation materials, in particular to a building thermal insulation dry powder mortar. Background technique [0002] In recent years, the construction industry has applied more and more widely to the method of painting thermal insulation materials at the level of building walls to ensure that the buildings have sealing, ventilation, thermal insulation and energy-saving performances. Existing inorganic thermal insulation mortar materials, such as Chinese patent application 200610072751.X (a wall thermal insulation rubber material and its preparation method and use method) and Chinese patent application 200810047858.8 (building thermal insulation mortar). They mainly used modified cement, fly ash, desulfurized gypsum, vitrified microbeads, closed-cell perlite, vermiculite, fiber and other materials, but their thermal insulation performance, weather resistance, compression resistance, antifreeze, crack resistance...

AI Technical Summary

Problems solved by technology

They mainly used modified cement, fly ash, desulfurized gypsum, vitrified microbeads, closed-cell perlite, vermiculite, fiber and other materials, but their thermal insulation performance, weather resistance, compression resistance, antifreeze, crack resistance, Dry density, shock resistance, linear shrinkage, and plaster thickness required for design (65% energy saving) need to be improved