Аңдатпа
This article presents research materials aimed at developing technology for the utilization lead slags of Yuzhpolymetal JSC in order to use them as a fine aggregate and mineral additives for concretes with specified performance properties. The results of physico-chemical studies have established the presence of calcite, quartzite, dolomite, ferruginous compounds in lead waste for use as aggregates and mineral additives for concrete. It was determined that when partially replacing 50% of natural raw materials with aggregates based on lead waste, the grade strength of concrete increases by 13.3% than that of the control composition, it was found that it is compositions with 50% replacement of natural filler with lead waste that show the highest strength characteristics. With the complete replacement of aggregates with these wastes, the compressive strength of concrete decreases. Heavy concretes with a compressive strength of up to 58.6 MPa were obtained, but due to the fact that the studied lead production waste contains up to 33% ferrous compounds, up to 5% copper, zinc and barium oxides, it is advisable to use lead slags as fillers after extracting metals from it.