High performance concrete composite admixture produced by high silicon iron tailings

The invention provides a high performance concrete composite admixture produced by high silicon iron tailings. The admixture comprises the following components in parts by weight: 70-80 parts of high silicon iron tailing slags, 15-20 parts of limestone, 10-15 parts of zeolite, 8-15 parts of diatomite, 5-10 parts of desulfurized gypsum, 3-8 parts of perlite, and 3-8 parts of kaolin. 70-80 parts by weight of the high silicon iron tailing slags, 15-20 parts by weight of the limestone, 10-15 parts by weight of the zeolite, 8-15 parts by weight of the diatomite, 5-10 parts by weight of the desulfurized gypsum, 3-8 parts by weight of the perlite, and 3-8 parts by weight of the kaolin are uniformly mixed and thrown into a ball mill, milling is carried out till the materials are milled into powder whose specific surface area is 500-600m /kg, 10-12 parts by weight of a polycarboxylic acids water reducer is mixed into the powder with stirring, and the high performance concrete composite admixture produced by high silic