E3S Web Conf.
Volume 174, 2020Vth International Innovative Mining Symposium
|Number of page(s)||7|
|Section||Environment Saving Mining Technologies|
|Published online||18 June 2020|
Studies of the Possibility of Using Coal Mining Waste in Concrete for Mine Construction
1 T.F. Gorbachev Kuzbass State Technical University, Str. Vesennyaya, 28, Kemerovo, Russian Federation, 650000
2 M.M. Adyshev Osh Technological University, 81 N. Isanovstreet, Osh, Kyrgyz Republic
The article discusses the possibility of using coal waste for the preparation of mine concrete. As a result of the research, scientific and prac- tical results were obtained. It has been experimentally proved that when a small fraction of coal, which is a waste of coal mining, is added to mine concrete, the strength of concrete decreases, but with a certain ratio of this strength it is sufficient to ensure the required properties. A series of experi- ments was carried out with the addition of liquid glass to the concrete to control the setting time of the mixture. The properties of coal wastes were determined and the possibility of their use in mine concrete was investigated. It has been established that the introduction of a fine fraction of coal in the optimum quantity into the composition of mine concrete is possible without reducing technological parameters.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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