E3S Web Conf.
Volume 105, 2019IVth International Innovative Mining Symposium
|Number of page(s)||5|
|Section||Environment Saving Mining Technologies|
|Published online||21 June 2019|
Use of Slag Concrete in Construction of Underground Structures and Mines
T.F. Gorbachev Kuzbass State Technical University, 650000, Kemerovo, Russian Federation
2 Shandong University of Science and Technology, Qingdao 266590, Chin
* Corresponding author: firstname.lastname@example.org
The paper considers the possibility of using slag concrete in underground construction. Technological parameters for production of slag concrete with the set properties are defined. The influence of the composition of slag concrete used in the conditions of mine construction on the change of physical and mechanical characteristics, durability and stability is determined. The limits of technological parameters of slag concrete preparation are established. The possibilities of combined use of blast-furnace slags and clinkers for concrete in mine construction are substantiated. The chemical composition of blast furnace slag and the possibility of its application in the composition of concrete is described, the interaction of an aggregate - Portland cement with blast furnace slag is studied. The technique for conducting experiments to determine the rate of strength gain of different types of concrete is described. The rate of strength gains of heavy concrete and the rate of strength gain of slag concrete with additives and without additives have been compared. The possibility of application of this slag concrete in the process of concreting with the use of sliding formwork has been studied.
© The Authors, published by EDP Sciences, 2019
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