High-Performance Addtive for Concrete Made from Desulfured Slag and Manufacturing Method Thereof

摘要

PURPOSE: A high functional blending material produced from desulphurized slag, and a producing method thereof are provided to induce Higher Value-added resources of an industrial byproduct using non-self adhering desulphurized slag as a blending material for concrete. CONSTITUTION: A producing method of a high functional blending material from desulphurized slag comprises the following steps: cooling the desulphurized slag which is an industrial byproduct generated from a hot metal preprocessing step eliminating a sulfur component among impurities included in melted iron(A100); and crushing the desulphurized slag over a fineness of 4,000 square centimeters per gram(A101). The desulphurized slag contains 40~70wt% of CaO, 10~30wt% of SiO_2, 0.5~5wt% of Al_2O_3, 0.5~5wt% of MgO, 0.5~5wt% of T-Fe, and 0.5~5wt% of S.