Fractal characteristics of crushed particles of coal gangue under compaction

详细信息    查看全文

• 作者：Jixiong Zhang ; Meng Li ; ^{limeng1989@cumt.edu.cn} ; Zhan Liu ; Nan Zhou
• 关键词：Coal gangue ; Crushed particles ; Fractal characteristics ; Particle breakage ; Compaction test
• 刊名：Powder Technology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：305
• 期：Complete
• 页码：12-18
• 全文大小：861 K
• 卷排序：305

文摘

The fractal model for the particle size of compacted and crushed gangue is established. The fractal dimensions of crushed sandstone and sandy mudstone under compaction are calculated. The fractal dimension of each crushed specimen ranges from 0.352 to 2.654 with increase of stress. The fractal dimension increases with increased content of small particles and tends to be a definite value. The fractal dimension decreases with increased rock strength for the same initial particle size gradation and stress.