Concrete formed by compounding of steel slag aggregates and preparation method of concrete

The invention discloses concrete formed by compounding of steel slag aggregates and a preparation method of the concrete. The concrete comprises the following raw material components in parts by weight: 300-1100 parts of steel slag, 200-400 parts of slag powder, 0-110 parts of Portland cement, 20-50 parts of gypsum, 0-700 parts of sand, 700-1350 parts of stones, 3-15 parts of an admixture, and 140-200 parts of water. According to the concrete provided by the invention, the granular steel slag is adopted as the raw material of a concrete bonding material, the waste residue resources are utilized in a high added value manner, the production costs of the concrete are saved, and the strength grades of the concrete with different raw material components and weight components meet the strength technical indicators of concrete with C30-C60 or more; and the process is simple, and a current concrete preparation process can be adopted. 本发明公开种由钢渣集料复合而成的混凝土及其制备方法，所述混凝土包括以下原料组分及重量份数：钢渣300～1100份、矿渣粉200～400份、硅酸盐水泥0～110份、石膏2