Accelerating agent composition for shotcrete comprising rapidly cooled steel reducing slag powder

The present invention relates to a concrete accelerating agent comprising rapidly cooled steel reducing slag powder, and more specifically to a powder-type accelerating agent comprising rapidly cooled steel reducing slag powder which is added to cement for shotcreting work to accelerate the strength development by means of rapid hardening, the accelerating agent comprising a mixture of sodium carbonate, gypsum, slaked lime, sodium aluminate, a thickener, and rapidly cooled steel reducing slag powder produced by spraying and scattering electric furnace smelting reducing slag, from among by-products generated during steel smelting in a steel mill, with high-pressure and high-speed gas for 5-60 seconds to rapidly cool the smelting reducing slag from 1300-1600 to 40-90 DEG C, and then pulverizing to a powder of 3000-12000 cm2/g. 本发明涉及种包含急冷制钢还原渣粉末的混凝土用加速剂，更具体而言涉及种粉末型加速剂，其包含急冷制钢还原渣粉末，在喷射混凝土作业中添加到水泥从而通过快速硬化而加快强度发展。所述加速剂组合物包含急冷制钢还原渣粉末、碳酸钠、石膏、熟石灰、铝酸钠和增稠剂，所述急冷制钢还原渣粉末通过以下方式制得：向炼钢厂的炼铁过程中产生的副产物的熔融还原电弧炉渣喷射并飞散高压高速气体5秒～60秒，从