摘要
利用弱化缓冲算子和曲线拟合的方法研究了矿渣粉比表面积和掺量对掺矿渣粉水泥强度的影响.结果表明：按矿渣粉细度和掺量对水泥强度的影响规律可以把矿渣粉分成3类：粗矿渣粉（比表面积〈400 m^2/kg）、细矿渣粉（比表面积为450-550 m^2/kg）和超细矿渣粉（比表面积〉600 m^2/kg）.掺这3类矿渣粉水泥各龄期的抗压强度随着矿渣粉掺量增加分别呈现逐渐减小、基本不变和持续提高三种截然不同的趋势.通过对比矿渣粉磨时间和矿渣粉水泥强度比得出矿渣粉比表面积最佳范围是450-500 m^2/kg.
The effects of specific surface area and dosages of grinding granulated blast furnace slag（GGBS） on strength of slag blend cement were investigated by weakening buffer operator and curve fitting.The results show that on the basis of the compressive strength of slag blend cement with different slag dosages,GGBS is divided into three categories： coarse slag powder with specific area below 400 m^2/kg,fine slag powder with specific area from 450 m^2/kg to 550 m^2/kg and super-fine slag powder with specific area above 600 m^2/kg.Its ratios of compressive strength with silicate cement one show decreasing, fluctuant and increasing trend respectively with the content of slag powder increasing.By contrasting mill time of slag powder and the strength increasing of slag blend cement,the optimum range of slag powder fineness,from 450 m^2/kg to 550 m^2/kg,was determined.
出处
《中北大学学报（自然科学版）》
CAS
北大核心
2010年第3期269-274,共6页
Journal of North University of China(Natural Science Edition)
关键词
弱化缓冲算子
曲线拟合
矿渣粉
比表面积
分类
优化
weakening buffer operator
curve fitting
slag powder
specific area
classification
optimization
