粉磨方式对铁尾矿-矿渣基胶凝材料的性能影响  

Effect of Grinding Method on Performance of Iron Tailings-slag Based Cementitious Material

作　　者：李北星[1] 陈梦义[1] 王威[1] 朱志刚[1] 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《硅酸盐通报》2013年第8期1463-1467,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家高技术研究发展计划(863计划)课题(2012AA062405)

摘　　要：通过激光粒度分析、RRB(Rosin-Rammler-Bennett)方程拟合、强度测定、X-射线衍射(XRD)测试及孔结构测试等手段,研究了混合粉磨、单独粉磨、梯级粉磨这三种粉磨方式对铁尾矿-矿渣基胶凝材料的性能的影响。结果表明:在粉磨能耗相等的条件下,梯级粉磨制备的铁尾矿-矿渣基胶凝材料的颗粒群分布、强度、水化进程及孔结构优于混合粉磨和单独粉磨。另外,在常温下,利用梯级粉磨制得的铁尾矿-矿渣基胶凝材料与尾矿砂配合,制备了28 d抗折强度24.4 MPa、抗压强度97.0 MPa的高强砂浆。To study the influence of three kinds of grinding methods including mixed grinding, separate grinding and cascade grinding on the performance of iron tailings-slag based cementitious material, laser particle size test, RRB （Rosin-Rammler-Bennett） equation fitting, test were used. The results show that the particle size distribution strength, XRD test and pore structure , strength, process of hydration and pore structure of iron tailings-slag based cementitious material made in cascade grinding is superior to the other two grinding methods in the case of the same energy consumption. In addition, mortar with 28 d flexural strength of 24.4 MPa and compressive strength of 97.0 MPa can a high-strength be produced by using this iron tailings-slag based material made in cascade grinding together with iron mine room temperature. tailings at

关 键 词：粉磨方式 铁尾矿 胶凝材料 颗粒分布 孔结构 

分 类 号：TU526[建筑科学—建筑技术科学]