Additive for maintaining construction performance of wet mixing mortar and preparation method thereof

Abstract

The invention belongs to the field of building materials, and particularly relates to an additive for maintaining the construction performance of wet mixing mortar and a preparation method thereof. The additive comprises a material A and a material B, wherein the material A is prepared from the following ingredients in percentage by mass: 1.0 to 2.0 percent of etherified polycarboxylic acid water reducing agents, 0 to 0.3 percent of hydroxypropyl methyl cellulose ether, 5.0 to 7.5 percent of guar gum and xanthan gum polymers, 0.4 to 0.5 percent of tea saponin and the balance of water; the material B is prepared from the following ingredients in percentage by mass: 0.15 to 0.3 percent of hydroxyethylidene diphosphonic acid, 3.0 to 4.0 percent of gluconic acid sodium salt, 0 to 1.0 percent of white sugar and the balance of water. The material A and the material B are used in a mixed way. When the additive provided by the invention is used, the construction performance of the web mixing mortar can be obviously improved; the construction operable time of the web mixing mortar can be freely regulated within 6 to 30h; in addition, the performance stability of the wet mixing mortar in the construction operable time can be maintained.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to an admixture for maintaining the construction performance of wet-mixed mortar and a preparation method thereof. Background technique [0002] In engineering construction, construction mortar is a building material with a large amount and a wide range of uses. However, the traditional ready-mixed mortar not only has poor quality stability, high construction labor intensity and low construction efficiency, but also has serious noise and environmental pollution, which has brought great harm to people's lives. In order to overcome the disadvantages of traditional mortar, it is necessary to speed up the process of commercialization of mortar. As a kind of ready-mixed commercial mortar, wet-mixed mortar plays a significant role in saving resources, protecting the environment, and improving project quality. A large number of promotional applications. [0003] According t...

AI Technical Summary

Problems solved by technology

However, although there are many types of wet-mixed mortar admixtures on the market, the quality is uneven. The prepared wet-mixed mortar generally has poor water retention, short construction operation time, inconsistency between construction performance and construction operation time, and low preparation strength. and poor construction quality, which is not conducive to the production of wet-mixed mortar and the control of engineering construction and construction quality

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