REDUCING THE HARMFUL IMPACT OF INDUSTRIAL PRODUCTION ON THE ENVIRONMENT BY USING MAN-MADE WASTE

The admissibility of replacing traditional cement, used as a binder with magnesium-containing man-made waste in the preparation of a construction and fill mixture is justified. The possibility of replacing the traditional specially mined aggregate in constriction and fill mixtures is proved. The results of testing samples after cementing and a construction-fill mix-ture prepared on the basis of man-made waste are presented. The positive effect of mechani-cal activation of the backfill mixture components on its rheological properties and strength characteristics of the fill mass is studied. The use of lignosulfonate as an additive was con-firmed to improve the binding and rheological properties of the backfill mixture. The in-volvement of man-made waste in the closed cycle of the main and auxiliary production reduc-es the volume of man-made mass, which significantly lowers the impact of mining on the environment.