粉煤灰综合利用 FLYASHCOMPREHENSIVEUTILIZATION 2013 NO.2 专题研究 矿渣粒径范围与活性关系的研究及粒径分布的优化 Research on Relations of the Diameters of Slag Powder and its Active Property with Optimization of Particle Size 张雄12，邵坤12，冯蕾1.2 （1.同济大学建筑材料研究所上海市201804； 2.同济大学先进土木工程材料教育部重点实验室上海市201804) 摘要：通过图像分析仪结合相应的IPP软件测定了不同粒径区间中的矿粉颗粒的百分数；采用了灰色关联分析和 建立GM灰色模型分析了粒径区间和矿渣水泥的活性指数的关系以及做了相应的动态分析1nn结果表明：矿粉在 0-10um粒径范围中，<5um粒径颗粒与活性的关联度最大，粒径增大则它与活性的关联度明显下降，颗粒粒径分布对 矿渣早期强度的影响大于后期且对抗压强度影响略高于抗折强度；根据GM模型分析，<3um和5um～8um粒径的颗 粒对矿渣水泥影响最大，尤其是在早期；当<5um粒径颗粒大于35%时候，矿渣的不同龄期的活性指数均有较大的提 高1nn 关键词：矿渣；粒径范围；活性指数；灰色关联分析：GM模型 中图分类号：TV42+3文献标识码：A文章编号：1005-8249(2013)02-0019-05 Zhang Xiong,Huan Kun,Feng Lei (Key Laboratory of Advanced Civil Engineering Materials,Ministry of Education,Tong ji University,Shang Hai 201804 Building Materials Research Institute,Tong ji University,Shang Hai 201804) Abstract:The paricle percentage of different distribution is to be determined by image analyzer and IPP software so that the rela tionship and trends between diameter ranges and slag cement activity index could be analyzed by grey incidence analysis and GM models. The results indicate:When the diameter ranges of the slag powder particles arelessthan m,it shows the greatest correlation between diameter range and the ativity index; the effect of the particles distribution on EarlyStage Strength is greater than the post strength and its efeet on presive strength is slightly greater than that on the flexural strength . Based on the GM models , the particles with ranges of between less than 3μm and 5~8μm have the greatest impaet on the slag cement. especially in the early age; when the percent- age of particles with ranges of less than 5μm ismore than 35%the activityindexes of the slag cement in different ages are allimproved significantly. Key words;slag diameter ranges activity index grey incidence analysis GM models 矿粉的比表面积对材料的活性影响很大"，而矿 析研究方法1nn 粉中细颗粒的含量是决定比表面积的主要因素，矿 矿渣的水化活性是长期研究的重点，一般认为矿 粉中不同粒径段颗粒与活性的关系是不同的，随着颖渣粉体中粒径<10um的颗粒对其活性的影响和贡献 ...
矿渣粒径范围与活性关系的研究及粒径分布的优化.pdf
