| Issue |
E3S Web Conf.
Volume 315, 2021
VIth International Innovative Mining Symposium
|
|
|---|---|---|
| Article Number | 02006 | |
| Number of page(s) | 8 | |
| Section | Environment Problems in Mining Regions | |
| DOI | https://doi.org/10.1051/e3sconf/202131502006 | |
| Published online | 28 October 2021 | |
Study of the strength dependence of concrete for mine construction on the content of coal mining waste in it
T.F. Gorbachev Kuzbass State Technical University, Str. Vesennyaya 28, Kemerovo, Russian Federation, 650000
* Corresponding author: tatsienkovp@kuzstu.ru
The possibility of using coal mining waste in mine concrete mixing is considered in the article. As a result of the research, scientific and practical results have been obtained that make it possible to evaluate the strength properties of mine concrete, depending on the content of coal dust particles - the waste of mining - in it. It has been experimentally proven that when a fine fraction of coal is added to mine concrete, the strength of concrete decreases at a certain ratio, but this strength is sufficient to ensure the required properties. As a result of the experiments, samples of concrete for mine construction were manufactured, into which a fine fraction of coal - coal dust - was added in various ratios. A series of mine concrete tests was carried out to determine its physical and mechanical properties; the optimal composition was determined, which provides process and strength performance of the mixture. The conclusions have been drawn about the quantitative content of a fine fraction of coal in mine concrete, which make it possible to maintain process performance of the mixture and the strength of structures.
© The Authors, published by EDP Sciences, 2021
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