A thickened powder for preparing dry-mixed plaster

Abstract

The invention relates to thickening powder for preparing dry-mixed plastering mortar, which belongs to the thickening powder of building auxiliary materials. The thickening powder is formed by organic materials, and comprises the following components by weight percentage: 11-13 percent of hydroxypropyl methyl cellulose ether, 22-24 percent of wood fiber, 57-61 percent of calcium lignosulphonate and 6-7 percent of starch ether. The thickening powder is used as an additive of the dry-mixed plastering mortar, which can obviously improve the workability, water retention property, mechanical property and durability of the dry-mixed plastering mortar. The invention has the advantages that the thickening powder is formed by organic materials, less in using amount, low in cost and suitable for industrialized production of the dry-mixed plastering mortar, has high requirement on quality control and no pollution, can obviously improve the workability, water retention property, mechanical property and durability of the dry-mixed plastering mortar, is convenient to store and convenient and rapid to use, has no radioactivity and corrosivity, reforms the preparation mode for building mortar in the prior art, eliminates the lime pool and the stirring mill built on the construction site, reduces dust raising and noises, realizes civilized construction, and produces favorable social and economic benefits.

Description

technical field [0001] The invention relates to a thickened powder of building auxiliary materials, in particular to a thickened powder used for preparing dry-mixed plastering mortar. Background technique [0002] Dry-mixed mortar is the development trend of building construction, and the key to the development of dry-mixed mortar is the research and development of thickened powder. On the one hand, the dry-mixed mortar thickening powder currently produced only considers a certain performance of the dry-mixed mortar, such as water retention or consistency, and does not comprehensively consider the workability, mechanical properties, and durability of the dry-mixed mortar. On the other hand, some dry-mixed mortar thickened powders have better performance but higher cost, the cost remains high, the quality is different, and the popularization of ordinary masonry and plastering mortars with large quantities and wide areas is difficult. Contents of the invention [0003] Tech...

AI Technical Summary

Problems solved by technology

On the one hand, the dry-mixed mortar thickening powder currently produced only considers a certain performance of the dry-mixed mortar, such as water retention or consistency, and does not comprehensively consider the construction, mechanical properties, and durability of the dry-mixed mortar.

On the other hand, some dry-mixed mortar thickened powder has better performance but higher cost, the cost remains high, and the quality is different. It is difficult to popularize ordinary masonry and plastering mortar with large quantities and wide areas