Gypsum plastering mortar and preparation method thereof

Abstract

The invention discloses a gypsum plastering mortar which comprises the following components in parts by weight: 40-50 parts of desulfurized gypsum (or 35-45 parts of desulfurized gypsum and 4-6 partsof cement), 40-60 parts of quartz sand, 3-5 parts of heavy calcium carbonate, 0.5-0.9 part of redispersible latex powder, 0.05-0.15 part of a retarder and 0.1-0.3 part of cellulose ether; and a preparation method thereof. The method for manufacturing the gypsum plastering mortar is simple, and the prepared mortar is high in caking property, rapid in hardening, high in strength, low in density, lowin cost, green and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a gypsum plastering mortar and a preparation method thereof. Background technique [0002] With the rapid development of the construction industry, various building materials are constantly being updated. Plastering mortar is the most widely used type of mortar in construction mortar. The purpose is to protect the base layer of the wall and increase the aesthetic effect; the traditional plastering mortar is mainly Cement plastering mortar, this kind of plastering material first has the disadvantages of easy cracking, hollowing, a lot of ground dust, and poor bonding performance; secondly, because of the slow setting and hardening of cement mortar, especially when the temperature is low in winter, the plastering process and The time interval of the final decoration process is half a month or even longer, which has become the biggest obstacle restricting rapid constructi...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the construction industry, various building materials are constantly being updated. Plastering mortar is the most widely used type of mortar in construction mortar. The purpose is to protect the base layer of the wall and increase the aesthetic effect; the traditional plastering mortar is mainly Cement plastering mortar, this kind of plastering material first has the disadvantages of easy cracking, hollowing, a lot of ground dust, and poor bonding performance; secondly, because of the slow setting and hardening of cement mortar, especially when the temperature is low in winter, the plastering process and The time interval of the final decoration process is half a month or even longer, which has become the biggest obstacle restricting rapid construction, especially the common cracking and hollowing of cement mortar on new wall materials, which seriously affects the building quality and external appearance. , has become a common problem for consumers to complain about developers. For developers, it will also cause a lot of repair and compensation costs, which will cause large losses and have a certain negative impact on corporate image.