不同粉磨方式矿渣粉对矿渣水泥流变性的影响  

The Effect of Blast Furnace Slag Power by Different Grinding Methods on Cement Rheology

作　　者：周胜波[1] 侯新凯[1] 刘辉[1] 

机构地区：[1]西安建筑科技大学材料科学与工程学院,西安710055

出　　处：《材料导报（网络版）》2006年第1期39-42,共4页Materials Review

基　　金：国家自然科学基金资助项目（50272050）

摘　　要：用激光粒度分析仪（LPS）研究了球磨和立磨粉磨的矿渣粉的粒度分布，用旋转粘度计对矿渣水泥的流变性能进行了测量。发现：球磨机所加工的矿渣粉比立磨加工的矿粉颗粒尺寸分布宽、细颗粒含量高；矿渣粉比表面积相近时，矿渣掺量在小于30%和大于40%时由球磨矿渣粉制成的矿渣水泥比立磨矿渣水泥的屈服应力和粘度小，而掺量在30%～40%之间时球磨矿渣水泥的粘度和屈服应力较立磨的稍大。此外，对矿渣粉颗粒群与水泥流变性之间进行了灰色关联分析，发现小于10μm的矿渣颗粒增加了水泥浆的屈服应力和粘度，而大于10μm矿渣颗粒却削弱了水泥浆的屈服应力和粘度。The particle size distribution of blast furnace slag power ground by ball mill and LM was analyzed by means of LPS. And the rheology was measured by NXS .The results showed that the particle size distribution made by ball mill was wider and higher fine particle than LM; The slag cement shear stress and viscosity of ball mill was less than LM under the same specific surface area when the cement was substituted by slag less than 30% and more than 40%. And contrarily ball mill’s was bigger than LM’s when the cement was substituted by 30%～40% slag. The relationship between cement particle size distribution and the cement rheology was researched by grey correlation analysis method. The conclusion showed that the slag particle less than10μm increased the cement shear stress and viscosity and the slag particle more than10μm decrease the cement shear stress and viscosity.

关 键 词：立磨 球磨 矿渣粉 颗粒群特征 流变性能 

分 类 号：TQ172.717[化学工程—水泥工业]