Analysis of the Portfolio of Industrial Waste Resources in the Production of Cement-free Hardening Mixtures for Open-cut Flushing of Workings

Abstract

Analysis of the studies results of the resource portfolio and the main characteristics of by-products with the possibility of their use as inert aggregates of cement-free hardening mixtures, which, together with the development and improvement of the coal mining process scheme, allows addressing environmental issues. It was revealed that, during the reclamation of open-cut mining, retainers can be made by a cement-free layer of hardening backfill from preconditionned technogenic products, which, after hardening, becomes a fixative and prevents soil subsidence.