Study of segregation phenomenon of mixture storage hopper

被引：0

作者：

Qin Wen ^{[1
]}

Sha Ai-min ^{[1
]}

Hu Qian ^{[1
]}

机构：

[1] Changan Univ, Key Lab Special Area Highway Engn, Minist Educ, Xian 710064, Shaanxi, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2009年 / 30卷

关键词：

highway engineering; asphalt mixture; storage bin; segregation; granular material;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Aiming at understanding the segregation phenomena that may occur while the mixture is discharged from storage bin, small scale simulation test is adopted to observe the discharge process and analyze changes of particle composition. The results show that segregation phenomenon of mixture in storage bin at the time of discharge is mainly due to infiltration effect of granular material. During the discharge process, the fine materials infiltrate through the voids in the structure with the effect of the self-gravity, and aggregate segregation occurres. Different aggregate size ratios, distribution widths, average particle sizes and other factors result in different void structures of aggregate, which give birth to different extent of infiltration of fine materials. Thus, the degree of aggregate segregation varied.

引用

页码：99 / 102

页数：4