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Colored gypsum plastering mortar and preparation method thereof

A plastering mortar and gypsum technology, applied in the field of colored gypsum plastering mortar and its preparation, can solve problems such as single color, achieve good construction environment, shorten final setting time and curing time, and increase the effect of personalized selection.

Active Publication Date: 2020-03-17
上海贝恒人居建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the color of gypsum plastering mortar currently on the market is relatively single, and generally it can only be used as a base leveling layer

Method used

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  • Colored gypsum plastering mortar and preparation method thereof
  • Colored gypsum plastering mortar and preparation method thereof
  • Colored gypsum plastering mortar and preparation method thereof

Examples

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Embodiment 1～5

[0026] Examples 1-5 relate to a colored gypsum plastering mortar and a preparation method thereof. The components and dosages of the colored gypsum plastering mortar are shown in Table 1.

[0027] The desulfurized gypsum is hemihydrate gypsum calcined from waste residue produced after desulfurization of flue gas in a power plant; the average particle size of the desulfurized gypsum is 0.025-0.055mm.

[0028] The fineness of the white sand is between 50 mesh and 100 mesh.

[0029] The fineness of the heavy calcium is 150-200 mesh.

[0030] The latex powder is saponification-resistant redispersible vinyl acetate / ethylene copolymer powder, selected from Taiwan Dalian Chemical Co., Ltd., and the model is DA1220.

[0031] The retarder is a polymer protein retarder, selected from the production of Shanghai Qishuo Industrial Co., Ltd., the model is QS-H2011.

[0032] The water-retaining agent is low-viscosity hydroxypropyl methylcellulose with a molecular weight of 20,000 to 40,000...

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Abstract

The invention discloses a colored gypsum plastering mortar and a preparation method thereof. The colored gypsum plastering mortar comprises, by weight, 40-50 parts of desulfurized gypsum, 35-45 partsof white sands, 5-10 parts of heavy calcium carbonate, 1-2 parts of latex powder, 0.1-0.5 part of a retarder, 0.1-0.3 part of a water-retaining agent, 0.3-0.5 part of a coloring agent and 2-5 parts ofan inorganic pigment. The product prepared in the invention has a high strength, can replace a facing layer, and also has the advantages of labor and material saving, greenness, environmental protection, no pollution, and achieving of a good texture three-dimensional decoration effect. The product is mainly used for leveling the rough cement mortar wall surface or concrete wall surface of the inner wall, and can also be directly used as the decorative surface of the inner wall.

Description

technical field [0001] The invention relates to the technical field of gypsum plastering mortar, in particular to a colored gypsum plastering mortar and a preparation method thereof. Background technique [0002] At present, my country's new construction area is nearly 2 billion square meters every year, which requires about 500 million tons of interior wall plastering mortar, and consumes about 150 million tons of cement; if desulfurized gypsum high-strength cementitious materials are used instead of cement, hundreds of millions of tons can be reduced At the same time, it saves nearly 10 million tons of standard coal and turns 80 million tons of desulfurized gypsum into treasure. [0003] In modern construction projects, plastering gypsum mainly replaces plastering materials such as cement, lime mortar and clay mortar, and is suitable for various walls. Compared with other plastering mortars, plastering gypsum has good workability, fluidity and water retention properties, g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
CPCC04B28/144C04B2111/00482C04B2201/50C04B14/06C04B14/28C04B24/26C04B24/14C04B24/383C04B14/305C04B2103/54
Inventor 谢旭东麻新闻薛进明
Owner 上海贝恒人居建设集团有限公司