Macadam - inorganic granular bulk material with grains of size greater than 5 mm, the resulting fragmentation of rocks, gravel and boulders, incidentally produced stripping and enclosing rocks or substandard waste mining enterprises for processing ores (ferrous, nonferrous and rare metals iron and steel industry) and non-metallic mineral industries and the subsequent fragmentation rassevom products.

The average density of crushed stone from 2 to 3 g/cm3.

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