White sulphoaluminate cement and preparing method thereof

Abstract

The invention provides white sulphoaluminate cement. The white sulphoaluminate cement comprises the following raw materials in parts by weight: 65-90 parts of white sulphoaluminate cement clinker, 0-20 parts of dolomite, 5-15 parts of gypsum, 0-5 parts of white silicate cement clinkers, 0-10 parts of slag and 0-2 parts of retarder. The white sulphoaluminate cement has the characteristics of rapid hardening, early strength, high strength and the like, and the clinkers also have the characteristics of low forging temperature, energy saving, environment-friendliness and the like. The invention further provides a preparing method for the white sulphoaluminate cement.

Description

technical field [0001] The invention belongs to white cement products in the field of chemical industry, in particular to a white sulphoaluminate cement which can provide rapid hardening and early strength properties. Background technique [0002] White cement is a special cement mainly used for architectural decoration. It is also commonly used in the preparation of white or colored concrete products such as terrazzo and fake stone. It is the decorative cement with the largest production scale and has high economic value. White Portland cement is currently the most used white cement. Generally, the whiteness is above 80. The 28-day compressive strength can reach the Portland cement 42.5 strength grade standard, but its early strength is not high, and the 3-day compressive strength is only About 20MPa. This makes the demoulding time of white Portland cement products greatly prolonged, which greatly affects the work efficiency and product quality of product production. [0...

AI Technical Summary

Problems solved by technology

White Portland cement is currently the most used white cement. Generally, the whiteness is above 80. The 28-day compressive strength can reach the Portland cement 42.5 strength grade standard, but its early strength is not high, and the 3-day compressive strength is only About 20MPa

This greatly prolongs the demoulding time of white Portland cement products, which greatly affects the work efficiency and product quality of product production.

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