Desulfurized gypsum based functional mortar for coating and preparation method thereof

Abstract

The invention relates to desulfurized gypsum based functional mortar for coating and a preparation method thereof. The desulfurized gypsum based functional mortar for coating comprises the following components in parts by weight: 20-35 parts of desulfurized gypsum, 5-10 parts of S95 superfine slag powder, 50-70 parts of quartz sands, 3-6 parts of kieselguhr, 0.2-0.5 parts of nanometer titanium dioxide, 0.5-1.5 parts of redispersible latex powder, 0.05-0.2 part of cellulose ether, 0-0.2 part of defoaming agent, 0.3-0.8 part of water repellent, 0.5-1.0 part of lithium carbonate early strength agent and 0.02-0.05 part of retarder. The desulfurized gypsum based functional mortar for coating, provided by the invention, has the advantages of good self-purification property, good self-humidifying property, good adhesive property, good construction performance, higher compressive strength and the like, and has good effects of purifying the air and adjusting the humidity when plastering an indoor wall of a building, so that the desulfurized gypsum based functional mortar for coating can be applied for plastering engineering of all kinds of indoor walls of buildings, and a large amount of industrial solid wastes are utilized with lower economic cost, and good environmental-friendly, energy-saving and waste utilization effects.

Description

technical field [0001] The invention belongs to the technical field of building materials, and also relates to the technical field of functional materials, in particular to a desulfurized gypsum-based functional compound composed of desulfurized gypsum, slag powder, quartz sand, diatomaceous earth, nano-titanium dioxide and chemical additives. Plastering mortar and preparation method thereof. Background technique [0002] With the economic development of our country, more and more attention has been paid to the resource utilization of solid waste. Desulfurization gypsum is a kind of solid waste produced in the flue gas desulfurization process of coal-fired power plants, and has become the second largest solid waste besides fly ash; my country produces nearly 100 million tons of wet flue gas desulfurization gypsum every year, of which Storage not only takes up a lot of land, but also pollutes the environment and land. Therefore, the utilization and research of industrial sol...

AI Technical Summary

Problems solved by technology

[0003] With the vigorous development of my country's construction industry, a large amount of mortar is required for indoor plastering and plastering. Gypsum-based mortar has a certain humidity regulating effect, is not easy to hollow and crack, and has good sound and heat insulation effects. It is a very good building interior Plastering mortar has been widely used in building interior wall plastering and plastering in western developed countries, but it is also vulnerable to its shortcomings such as fast setting time and low strength.

Images