粗骨料的等轴率、圆度和球度及其相互关系  

Isometric Ratio,Roundness and Sphericity of Coarse Aggregates and Their Relationship

作　　者：李北星[1] 王威[1] 陈梦义[1] 叶茂[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,湖北武汉430070

出　　处：《建筑材料学报》2015年第4期531-536,共6页Journal of Building Materials

基　　金：国家自然科学基金资助项目(51372185);国家高技术研究发展计划(863计划)项目(2012AA062405)

摘　　要：运用图像分析软件(IPP软件)测定了石灰石和铁尾矿废石粗骨料的三轴特征、圆度和球度,采用统计产品与服务解决方案软件(SPSS软件)对不同粒级石灰石和铁尾矿废石粗骨料的等轴率、圆度和球度进行了统计分析,并建立了三者之间的相互关系.结果表明:不同粒级石灰石和铁尾矿废石粗骨料的等轴率、圆度、球度分布均近似符合正态分布;等轴率、圆度、球度这3个指标用于评价不同品种、不同粒级粗骨料的粒形特征具有良好的一致性;粗骨料球度与等轴率、圆度之间能够建立显著性极高的二元线性回归方程.The tri-axial characteristic, roundness and sphericity of limestone and waste iron tailing rock coarse aggregates were determined by Image-Pro Plus（IPP） software. The statistical analyses on the iso- metric ratio, roundness and sphericity of limestone and waste iron tailing rock coarse aggregates with dif- ferent particle sizes were done by Statistical Product and Service Solutions（SPSS） software, and the rela- tionships among the three parameters were established. The results indicate that the isometric ratio, roundness and sphericity of limestone and waste iron tailing rock coarse aggregates with different particle sizes are all in accordance with the normal distribution approximately, and the three parameters have good consistency in characterizing the particle shapes of different type or different sized coarse aggregates. Fur- thermore, the relationship among the sphericity and isometric ratio and roundness of coarse aggregate fits in a highly significant binary linear regression equation.

关 键 词：粗骨料 颗粒形状分析 数字图像处理 线性回归 

分 类 号：TU521.2[建筑科学—建筑技术科学]