Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a composite cement grinding aid, which belongs to the technical field of cement grinding aids. The composite cement grinding aid consists of the following raw materials in parts by weight: 12 to 20 parts of triethanolamine, 12 to 20 parts of dodecylbenzene, 10 to 15 parts of sulfonated melamine resin, 10 to 15 parts of Beta-hydroxyethyl ethylenediamine, 5 to 10 parts of sodium acetate, 5 to 10 parts of triisopropanolamine, 1 to 5 parts of hydroxypropyl methyl cellulose, 1 to 5 parts of sodium lignin sulfonate and 1 to 5 parts of polysorbate. By the reasonable proportioning of each raw material, under the premise of small contents, the output of the composite cement grinding aid in unit time is increased to more than 13 percent, the strength of cement can be increased by more than 4MPa in 3 days, and the strength of cement can be increased by more than 5MPa in 28 days.
The invention relates to a composite cement grinding aid, which belongs to the technical field of cement grinding aids. The composite cement grinding aid consists of the following raw materials in parts by weight: 12 to 20 parts of triethanolamine, 12 to 20 parts of dodecylbenzene, 10 to 15 parts of sulfonated melamine resin, 10 to 15 parts of Beta-hydroxyethyl ethylenediamine, 5 to 10 parts of sodium acetate, 5 to 10 parts of triisopropanolamine, 1 to 5 parts of hydroxypropyl methyl cellulose, 1 to 5 parts of sodium lignin sulfonate and 1 to 5 parts of polysorbate. By the reasonable proportioning of each raw material, under the premise of small contents, the output of the composite cement grinding aid in unit time is increased to more than 13 percent, the strength of cement can be increased by more than 4MPa in 3 days, and the strength of cement can be increased by more than 5MPa in 28 days.