Concrete grinding aid and preparation method thereof

Abstract

The present invention relates to a cement grinding aid and a method for producing the cement grinding aid, which belongs to the production technical field of the cement. The grinding aid comprises the ingredients in weight percent as follows: 12 to 14 percent of polyacrylamide, 9 to 11 percent of polyacrylic acid, 5 to 7 percent of trolamine, 9 to 11 percent of triisopropanolamine, 6 to 8 percent of red mud, 12 to 14 percent of sodium sulfate anhydrous, 6 to 8 percent of quicklime, and 34 to 36 percent of water. The cement grinding aid not only has good grinding-assistant effect, but also can enhance the strength of the cement; the preparation method that is scientific, reasonable, simple, convenient and feasible divides the raw materials into two groups, wherein, group A is polyacrylamide, polyacrylic acid, trolamine and triisopropanolamine, and group B is the red mud, the sodium sulfate anhydrous, the quicklime and the water; the raw materials in group A and group B are respectively mixed uniformly and independently, and then the raw materials of the two groups are mixed uniformly together to obtain the cement grinding aid of the present invention.

Description

technical field [0001] The invention relates to a cement grinding aid and a preparation method thereof, belonging to the technical field of cement production. Background technique [0002] With the continuous deepening of the national industrial policy, cement has been listed as a key energy-consuming industry, and is also listed as an industry restricted by the state. The state requires that energy consumption be reduced by 5% per year while maintaining the current production capacity, which urgently requires the cement industry to save energy and reduce consumption. [0003] As we all know, cement clinker is a key material in cement production. To produce one ton of cement clinker requires 1.3 tons of limestone, 0.16 tons of coal, and 60KWh of electricity. In order to save energy and reduce consumption, reduce the cost of cement production, and produce the same amount of cement, less cement clinker must be used and more waste residue will be added, and the addition of mor...

AI Technical Summary

Problems solved by technology

This formula is helpful to increase the output of cement mill, but it does not have much benefit to the performance of cement, especially the performance of concrete. Although its early strength is improved, but the later strength and decline, it has no effect on the performance of concrete. improve