Construction Materials Based on Wastes from Mining and Metallurgical Industries

Abstract

It was determined that after removing metal using the method of flow aerosol flotation for the old tailings of the tungsten-molybdenum factory and adding limestone, the mixture is similar to the clinker used in the production of the Portland cement.It was experimentally shown that dumping cakes in the hydrometallurgical production may be divided into a secondary raw tungsten-molybdenum complex and a non-metallic part, which when added to the heavy concrete at a ratio of 20-30% of the amount of cement do not reduce the strength of the concrete samples, actually, a slight increase in strength upon compression is observed.Non-metallic parts may be used as a mineral additive in cement production. The cost of mineral additives is ∼ 9.5% of the total costs on raw materials and 2.4% of the direct expenses. The production cost of 1 ton of cement with mineral additives was 1757.09 rubles for a selling price of 3964.36 rubles. The factory price of this cement was 3680-4200 rubles, which provides a positive commercial result.The paper comprises the technical and economic study on the feasibility of utilizing the material according to the developed economic models of waste recycling of lead-zinc ore in the production of construction materials. The recipe was concocted.