FIELD: construction.
SUBSTANCE: method to prepare a mineral powder for an asphaltic concrete consists in sorting of sand and crushed stone by fractions, picking the fraction of 0.5-5 mm in the required quantity, its grinding into a mineral powder. Besides, the freshly ground mineral powder not later than in 10 minutes after grinding is previously mixed with 1-2% of bitumen, and then send into a silo for storage of a bitumen-mineral mixture for further dosing with asphaltic concrete components.
EFFECT: no deactivation of a mineral powder, its higher activity.
2 cl, 2 tbl, 1 dwg
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