Inorganic vitrified microsphere external wall thermal insulation mortar and preparation method thereof

Abstract

The invention discloses inorganic vitrified microsphere external wall thermal insulation mortar and a preparation method thereof. The inorganic vitrified microsphere external wall thermal insulation mortar is prepared by the following raw materials, by weight, 90-110 parts of portland cement, 20-25 parts of vitrified microspheres, 5-8 parts of microcrystals, 2-4.5 parts of dispersible emulsion powder, 1.2-1.6 parts of sisal fiber, 1.3-1.5 parts of mullite fiber, 5-10 parts of nano palygorskite, 5-8 parts of nano feldspar powder, 5-10 parts of modified sepiolite powder, 3-7 parts of pulverized fuel ash, 1.5-2.5 parts of cellulose ether, 1.6-1.8 parts of water-retaining agents, 0.9-1.5 parts of sugar calcium water reducing agents and 1-2 parts of organosilicon waterproofing agents. The inorganic vitrified microsphere external wall thermal insulation mortar has excellent heat preservation, thermal insulation, fire prevention, ageing resistance, noise absorption, breathability, cracking resistance and the like, is high in strength and good in bonding property, does not hollow or crack, is environmentally friendly and has no harm.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an inorganic vitrified microbead external wall thermal insulation mortar and a preparation method thereof. Background technique [0002] At present, the insulation materials used for building exterior walls are mainly divided into inorganic insulation materials and organic insulation materials. Organic thermal insulation materials have poor fireproof and moisture-proof performance, poor impact strength performance, and the construction process is complicated. Inorganic insulation materials are currently mainly used vitrified microbeads or polyphenylene particles. Polyfoam particles are flammable insulation materials, and the flame retardant grade can only reach B2 grade. The method of using vitrified microbeads or polystyrene particles is as follows: at the construction site, vitrified microbeads or polyphenylene particles are used as inorganic thermal insulation lig...

AI Technical Summary

Problems solved by technology

The use of glass fiber mesh will have an impact on the environment. It is not only easy to fall off, but also because the glass fiber mesh is made of plastic material, once a water leak occurs, it will become moldy and slowly emit an odor, causing pollution to the air environment.

Therefore, the existing inorganic thermal insulation materials generally have poor bonding and wrapping performance, poor waterproof performance, poor impact resistance performance, easy cracking and falling off, complex construction process, long construction period, high use cost, and adhesiveness.