Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a composite cement grinding aid belonging to the technical field of cement aids. The composite cement grinding aid is prepared from the following substances in parts by weight: 10-25 parts of polymer polyols, 30-40 parts of lignin-based alkylol amine, 5-15 parts of calcium formate, 4-10 parts of p-aminobenzene sulfonic acid, 2-7 parts of solid magnesium dihydrogen phosphate, 1-4 parts of gelatin and 2-6 parts of sucrose, wherein the particle size of the solid magnesium dihydrogen phosphate is 50-80nm. By using the composite cement grinding aid, high-fineness grinding and superfine grinding can be favorably realized, the yield of a mill can be favorably increased, and the yield of a ball mill is increased by 28%; the grinding energy consumption can be favorably reduced, the utilization rate of clinker can be favorably increased, and the cost is reduced; the hydration reaction of clinker powder in cement can be basically finished within 25 days, and the strength effect can be completely taken; and the production of specific cement can be favorably improved, and energy conservation and emission reduction in the cement industry can be favorably realized.
The invention discloses a composite cement grinding aid belonging to the technical field of cement aids. The composite cement grinding aid is prepared from the following substances in parts by weight: 10-25 parts of polymer polyols, 30-40 parts of lignin-based alkylol amine, 5-15 parts of calcium formate, 4-10 parts of p-aminobenzene sulfonic acid, 2-7 parts of solid magnesium dihydrogen phosphate, 1-4 parts of gelatin and 2-6 parts of sucrose, wherein the particle size of the solid magnesium dihydrogen phosphate is 50-80nm. By using the composite cement grinding aid, high-fineness grinding and superfine grinding can be favorably realized, the yield of a mill can be favorably increased, and the yield of a ball mill is increased by 28%; the grinding energy consumption can be favorably reduced, the utilization rate of clinker can be favorably increased, and the cost is reduced; the hydration reaction of clinker powder in cement can be basically finished within 25 days, and the strength effect can be completely taken; and the production of specific cement can be favorably improved, and energy conservation and emission reduction in the cement industry can be favorably realized.