Abstract： To achieve the high value added utilization of fly ash, the relationship between particle size characteristics and component characteristics of fly ash was studied. The original low calcium fly ash were divided into 5 groups according to the particle size by the classifier. Several parameters of particle fineness and size distribution were used to assess the particle size characteristics. The chemical and mineral components of the fly ash were tested by XRF and XRD respectively. The results show that the different parameters of particle fineness align fairly well in assessing particle size. The uniformity coefficients of classified fly ash are greater than these of the original fly ash. The mineral species in the 5 groups of fly ash are basically the same while the chemical contents are obviously different.

Keywords：fly ash; particle group; particle size characteristics; component characteristics

中图分类号：TB321，TQ178          文献标志码：A

文章编号：1008-5548（2014）02-0047-04

DOI:10.13732/j.issn.1008-5548.2014.02.011

收稿日期：2013-11-26， 修回日期：2013-12-11，在线出版时间：2014-05-04。

基金项目：山东省科技发展计划项目，编号：2013YD06012；国家重点基础研究发展计划（973 计划）项目，编号：2009 CB623104。

第一作者简介：丰曙霞(1982—)，女，博士，讲师，研究方向为水泥基建筑材料、固体废弃物利用。 E-mail:fengshuxia1982@163.com。