Structure and pozzolanic activity of calcined coal gangue during the process of mechanical activation

被引：0
作者：
Wei Guo
Dongxu Li
Jianhua Chen
Nanru Yang
机构：
[1] Yancheng Institute of Technology,Department of Material Engineering
[2] Nanjing University of Technology,Institute of Material Science and Engineering
[3] Changshu Institute of Technology,Department of Chemistry and Materials Engineering
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2009年 / 24卷
关键词：
coal gangue; mechanical activation; structure; NMR; tetrahedron;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
On the basis of analyzing coal gangue’s chemical and mineral compositions, the structure change of coal gangue during the mechanical activation was investigated by XRD, FTIR, NMR, and the mechanical strength of the cement doped coal gangue with various specific surface area was tested. The experimental results indicate that, the lattice structure of metakaolin in coal gangue samples calcined at 700 °C disorganizes gradually and becomes disordered, and the lattice structure of α-quartz is distorted slightly. The pozzolanic activity of the coal gangue increases obviously with its structural disorganization.
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页码：326 / 329
页数：3
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