Potential applicability of tailings as fine aggregate for concrete paving slabs

Statistics of recent years shows an annual increase in the volume technogenic waste (in particular "tailings") mining and metallurgical enterprises Kazakhstan by about 1.5 billion tons, which at current time is already 4.7 that entails certain environmental economic consequences. This article proposes potential use tailings as a fine aggregate to partially replace consumption cement concrete mixture for manufacture paving slabs. Carbonate Kazzinc LLP enterprise were used. To determine optimum composition mix with made control 4 experimental compositions replacement part amount 5, 10, 15, 20% respectively. Samples mixtures tested compressive strength, flexural tensile abrasion, frost resistance, resistance wetting drying. According test results, it was found concentration increases, physical-mechanical operational indicators slabs improve.