Industrial waste in concrete mixtures for construction of underground structures and minerals extraction

Abstract

An increase in population leads to an increase in the density of inhabitants in megacities and leads to an increase in consumed raw materials. The paper presents the description of the problems that arise for builders when building density increases and for producers of raw materials that arise when raw material is intensified. The analysis of the impact of construction and mining waste on the environment was carried out. Compositions of concrete mixes and methods of their preparation are offered to improve the quality and safety of life in megacities, as well as the safety of mining operations along with reducing the human impact on the ecosystem. Aspects of preparation of concrete mixes and questions of improvement of its quality by activation of components are revealed. The possibility of activation of construction and mining waste used as an inert aggregate in considered. The possibility of realization of non-waste production is considered.

Proportioning Test on the Similar Materials of the Rock Mass Physical Model Test Considering Seepage and Dynamic Characteristics

“…Some scholars have used fiber concrete to improve the properties of engineering materials [12,13]. Some scholars also use low-strength materials as backfill or high-strength materials in coal mines [14][15][16]. However, the study of the above materials is considered from the perspective of protection and reinforcement and has no reference significance for the stability analysis and instability mechanism under hydraulic and dynamic action.…”

Evaluating Cement Treated Aggregate Base Containing Steel Slag: Mechanical Properties, Volume Stability and Environmental Impacts

“…Innovative approaches have been studied to decrease these wastes, or, as a clearer option, turn them into valuable reserves [ 2 , 3 ]. For several decades, various industry wastes have been extensively studied to replace aggregates or to enhance performance of construction materials [ 4 , 5 , 6 ].…”

Geomechanical substantiation of parameters of technology for mining salt deposits with a backfill

“…An incorrectly selected development technology or incorrectly calculated parameters lead to the integrity and leakproofness violation of large aquifers. This is the reason for flooding of underground structures, a significant deterioration in mine safety and a change in the hydrogeological situation of the deposit (Kongar-Syuryun et al 2020).…”

“…1. Failure at the mine of the company "Uralkali", Russia, Perm regionThe use of mining and construction waste is an important issue worldwide(Golik et al 2017), (Kongar-Syuryun et al 2020), (Khayrutdinov et al 2020a. But it has a very local size and value Kawalec et al 2017.…”

“…(Kongar-Syuryun et al 2020), (Khayrutdinov et al 2020a,(Khairutdinov, Votyakov 2007),(Votyakov 2009), (Shang Pengqiang et al 2011, which indicates high relevance. When creating a fill mass based on waste from potash ore processing, various components were used as a binder: cement(Kongar-Syuryun et al 2020), (Khayrutdinov et al 2020a), (Khairutdinov, Votyakov 2007), (Votyakov 2009), (Xuquan Huang et al 2014); slags (Khayrutdinov et al 2020c).…”