Novel cement grinding aid and preparation method thereof and application thereof

Abstract

The invention discloses a novel cement grinding aid. The novel cement grinding aid comprises the following components in part by weight: 3-15 parts of triethanolamine, 10-25 parts of ethylene glycol monoisopropanolamine, 15-40 parts of polymerized mixed lipid, 5-15 parts of molasses and 25-67 parts of water. The invention further provides a preparation method of the novel cement grinding aid; and the preparation method comprises the following steps: adding 25-67 parts of water to a reaction pot; rapidly stirring the water; adding 15-40 parts of polymerized mixed lipid, 5-15 parts of molasses, 10-25 parts of ethylene glycol monoisopropanolamine and 3-15 parts of triethanolamine to the reaction pot; and stirring an obtained mixture for 2 hours so as to obtain a finished product. The invention further provides an application of the cement grinding aid; and during manufacture of a cement through pulverizing, the cement grinding aid which accounts for 0.03-0.1% of the total weight of the cement is blended in 45-85 parts of clinkers, 10-25 parts of fly ashes, 5-15 parts of slag and 5-10 parts of gypsums by weight.

Description

technical field [0001] The invention belongs to the field of cement admixtures, and in particular relates to a novel cement grinding aid and its preparation method and application. Background technique [0002] At present, in the production process of cement grinding, the grinding efficiency of the cement grinding aid used is low, and the strengthening effect is not obvious. The strength and hardness of the particles, as well as the lattice cohesion at the interface, cannot be effectively reduced. Only when more grinding aid molecules are adsorbed on the surface of the cracks of the rolled object, a protective layer is formed, which is conducive to the expansion of particle cracks and prevents cracks. Heal and play a grinding aid effect. Contents of the invention [0003] The invention can significantly improve the fluidity and dispersibility of the material in the mill, reduce the stickiness of the material, and at the same time quickly provide foreign ions to satisfy th...

AI Technical Summary

Problems solved by technology

[0002] At present, in the production process of cement grinding, the grinding efficiency of the cement grinding aid used is low, and the strengthening effect is not obvious. The strength and hardness of the particles, as well as the lattice cohesion at the interface, cannot be effectively reduced. Only when more grinding aid molecules are adsorbed on the surface of the cracks of the rolled object, a protective layer is formed, which is conducive to the expansion of particle cracks and prevents cracks. Heal, play a grinding aid effect

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