Concrete-powder-containing gypsum based leveling putty and preparation method thereof

Abstract

The invention discloses concrete-powder-containing gypsum based leveling putty and a preparation method thereof. The gypsum based leveling putty is prepared from, by weight, 400-700 parts of desulfurized gypsum powder, 300-600 parts of construction concrete powder, 1-5 parts of a water-retaining agent, 0.1-1 part of an anti-yellowing agent, 1-20 parts of dispersible emulsion powder, 1-3 parts of awater repellent, 0.1-1 part of a retarder, 1-5 parts of industrial tartaric acid, 0.5-2 parts of starch ether, 1-3 parts of an coagulation accelerator and 1-3 parts of a mould inhibitor. The desulfurized gypsum powder refers to beta semi-hydrated gypsum obtained by calcining of waste residues generated after coal-fired power plant flue gas desulfurization, and the construction concrete powder isan inorganic component obtained by grinding, screening and deironing treatment of construction concrete residues and brick residues. The gypsum based leveling putty has functions of automatic moistureabsorption and automatic moisture release and has advantages of great heat insulation and fireproof performances, convenience in construction and saving of a construction period. The preparation method is simple and convenient, and an environment-friendly efficient construction material is provided for the home decoration industry and the coating industry.

Description

technical field [0001] The invention belongs to the technical field of building base materials. More specifically, it relates to a gypsum-based leveling putty with concrete powder and a preparation method thereof. Background technique [0002] In order to improve the living environment and comfort requirements, secondary decoration is becoming more and more common in the home improvement market and has broad market prospects. The steps are as simple as possible, the maintenance period is short, and the precious construction time will not be taken up. Therefore, at present, the use of domestic building materials is mainly from new construction to renovation, with high construction requirements and short construction time, while the existing cement-based leveling putty is prone to hollowing, cracking, falling off and other problems, and the maintenance time is long. There are also many gypsum powders on the market, but most of them are low-end products, which often have a se...

AI Technical Summary

Problems solved by technology

Therefore, at present, the use of domestic building materials is mainly from new construction to renovation, with high construction requirements and short construction time, while the existing cement-based leveling putty is prone to hollowing, cracking, falling off and other problems, and the maintenance time is long

There are also many gypsum powders on the market, but most of them are low-end products, which often have a series of problems such as rust, yellowing, powder removal, and foaming.

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