Grinding aid for improving adaptability of high-aluminum clinker cement admixture
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A technology for cement admixture and high-aluminum clinker, which is applied in the field of grinding aids for improving the adaptability of high-alumina clinker cement admixtures, and can solve the problem of poor adaptability between high-alumina clinker cement and admixtures, and high Problems such as reduction of early strength of cement
Inactive Publication Date: 2021-06-08
华润水泥技术研发(广西)有限公司
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[0008] The purpose of the present invention is to provide a kind of grinding aid that improves the adaptability of high-alumina clinker cement admixture, to solve the problem that the grindi
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[0040] Preparation of grinding aids to improve the adaptability of high alumina clinker cement admixtures:
[0056] Mix all the raw materials evenly according to the above ratio to obtain the grinding aid.
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Abstract
The invention discloses a grinding aid for improving the adaptability of a high-alumina clinker cement admixture, and solves the technical problems that a grinding aid in the prior art causes lowadaptability of high-alumina clinker cement to the admixture and reduces the early strength of the high-alumina clinker cement. The grinding aid comprises: 3%-20% of dimer glycerol; 10%-27% of monoethanol diisopropanolamine; 2%-7% of hydroxyethylidene diphosphonic acid; 0.1%-0.25% of polyacrylamide; and the balance of water. Compared with a traditional grinding aid, the grinding aid for improving the adaptability of the high-aluminum clinker cement admixture has higher admixture adaptability, the fluidity of neat paste is improved by 20 mm or above, the slump of C30 and C25 concrete is improved by 15 mm or above, and the expansion degree is improved by 15 mm or above; and the formula of the grinding aid is optimized to improve the 28-day strength of the high-alumina clinker cement concrete.
Description
technical field [0001] The invention relates to the technical field of cement admixtures, in particular to a grinding aid for improving the adaptability of high-alumina clinker cement admixtures. Background technique [0002] my country is a big country in cement production and consumption. The consumption of coal, electricity and other resources by the cement industry, as well as the dust formed in the production process and the emission of a large amount of harmful gases have a serious impact on the living environment of human beings. With the implementation of the sustainable development strategy, resource, energy, and environmental issues greatly restrict the development of the cement industry. A very small amount of cement grinding aid can improve the gradation of cement particles, improve the grinding efficiency and cement quality indicators. Therefore, grinding aids play an irreplaceable role in the sustainable development of the cement industry. [0003] At present,...
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