Gypsum mortar production method, construction method and system

Abstract

The invention discloses a gypsum mortar production method, construction method and system, and the production method comprises the following steps: mixing gypsum, ground calcium carbonate, quartz sand, vitrified micro bubbles and a preset amount of water, stirring to obtain a coarse mixed main material, adding redispersible latex powder, a retarder, hydroxypropyl methyl cellulose, starch ether and fiber into the coarse mixed main material, uniformly stirring by a stirrer, drying to obtain a gypsum mortar blank, and finally adding a polyvinyl alcohol aqueous solution dispersed with nano-silver, nano-copper oxide and chitosan into the gypsum mortar blank to obtain the gypsum mortar. The gypsum mortar prepared by adopting a specific production mode and component matching has excellent comprehensive physical and chemical properties, the performance of the mildew-proof antibacterial agent is optimized by combining a specific temperature and a surface treatment mode of nano-silver and nano-copper oxide, the comprehensive performance of the gypsum mortar is improved, and the gypsum mortar is convenient and simple to construct and wide in application range.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a gypsum mortar production method, construction method and system. Background technique [0002] Mortar is a bonding substance used in building bricks. It is composed of a certain proportion of sand and cementing materials and water. It is also called mortar and mortar. Commonly used mortars include cement mortar, mixed mortar lime mortar and clay mortar. Gypsum mortar is a new type of wall plastering material. It uses hemihydrate gypsum as the base material, polymer as the gel material, and inorganic fillers through dry mixing. It changes the traditional habit of using cement as the cementitious material. , has excellent compatibility and adhesion with various substrates. [0003] Since most of the existing gypsum mortars are not water-resistant, they have relatively large limitations in use, and there are also a few gypsum mortars added with superior waterproof mate...

AI Technical Summary

Problems solved by technology

[0003] Since most of the existing gypsum mortars are not water-resistant, they have relatively large limitations in use, and there are also a few gypsum mortars added with superior waterproof materials, but this type of mortar forms a water-resistant film on the surface of the mortar, and the water resistance of the device will change with It gradually weakens with the passage of time, and its waterproof performance is relatively poor. When gypsum mortar is coated on the rough wall, it often has a certain degree of thermal expansion and contraction due to temperature changes. In this case, gypsum mortar is often due to The lack of toughness or the lack of waterproofness of the cement exterior wall will cause the gypsum mortar to spread the water and form water spots after wetting. In the case of mildew, once mildew occurs, usually only the gypsum mortar can be removed for repair. Therefore, the research on the anti-mildew and antibacterial of gypsum mortar is a subject of great practical significance.

Images