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The Mechanical Experiments on Coal Combustion Residuals in Coal-Fired Power Plants

Enji Sun 1, Xing Kai Zhang 1, Xunxian Shi 1, and Jing Shi 2
1. China Academy of Safety Science and Technology, Beijing, China
2. China Institute of Industrial Relations, Beijing, China
Abstract—Coal ashes are the inevitable production in the process of coal-fired power plants. Their storage expands greatly and have potential risks all over the world. To have more knowledge about the project characters and mechanical characters of coal ashes also referred to as coal combustion residuals or CCRs, this paper researched the particle distribution, dried bulk density and its moisture content, compaction abilities and penetration characteristics based on the particle analysis test, density test, compaction test and penetration test. The results show that the particles of this sample from power plant are coarse granularity and distributed unevenly. The smaller the dry density is, the higher the penetration coefficient is. The compaction density is not sensitive to sample moisture. The high compaction makes the coal ash particles and soil particles denser and the pore ratio smaller which results the penetration coefficient tend to decrease.
 
Index Terms—coal combustion residuals (CCR), particle distribution, density experiment, permeability experiment, mechanical characteristic

Cite: Enji Sun, Xing Kai Zhang, Xunxian Shi, and Jing Shi, "The Mechanical Experiments on Coal Combustion Residuals in Coal-Fired Power Plants," International Journal of Structural and Civil Engineering Research, Vol. 6, No. 2, pp. 154-158, May 2017. doi: 10.18178/ijscer.6.2.154-158
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