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This study evaluated the viability of using the fine residue of quartzite and stone powder from dunite mining in the southwest region of the State of Minas Gerais, Brazil, as aggregates mixed with Lateritic Clayey Soil for the treatment of base and sub-base layers of low-volume traffic pavement. Mixtures were prepared with soil and residues, in different proportions, tested in laboratory as proposed by MCT (Miniature, Compacted, Tropical) methodology for classification and to obtain some geotechnical properties. The results showed the potential replacement of conventional aggregate, since the samples evaluated were classified as “satisfactory” and/or “recommended” according to MCT, opening perspectives for a wider utilization of waste and by-products from quartzite slab production and ultrabasic rock aggregates.

Evaluation of mixtures of lateritic clayey soil with quartzite and stone powder for road purposes