摘要
将某-0.074 mm占74.5%的细粒铁尾矿按0.045 mm分级,通过热活化处理改善-0.045 mm尾矿的反应活性,并将其制备成复合胶凝材料,然后与+0.045 mm尾矿制备成细骨料混凝土。制品尾矿掺量达到70%,28 d抗压强度达到99 MPa。
By classifying fine iron tailings with-0.074 mm of 74.5% to be-0.045 mm,the thermal activation is adopted to improve the reaction activity of-0.045mm iron tailings which are prepared to be the compound Cementitious Materials.This material is mixed with ＋0.045 mm tailings to make fine aggregate concrete.There are 70% of tailings in preparation and the compression strength of up to 99 MPa at 28 d.
出处
《金属矿山》
CAS
北大核心
2009年第12期151-153,共3页
Metal Mine
基金
"十一五"国家科技支撑计划项目(编号:2006BAC21B03)。
关键词
细粒铁尾矿
分级
热活化
细骨料混凝土
抗压强度
Fine iron tailing
Classification
Thermal Activation
Fine aggregate concrete
Pressure resistance intensity
