ASPHALT CONCRETE MIXTURE Russian patent published in 2002 - IPC

FIELD: roadway coverings. SUBSTANCE: invention proposes an asphalt concrete mixture comprising bitumen, a modifying addition and a mineral filling agent. It comprises alkyldimethylhydrazinium chloride as a modifying addition that is a mixture of alkyldimethylhydrazinium chlorides with linear alkyl chains comprising from 10 to 16 carbon atoms in the following ratio of components, wt.%: bitumen, 5.94-7.35; the above indicated alkyldimethylhydrazinium chloride, 0.05-0.15; mineral filling agent, the balance. Said asphalt concrete mixture shows the enhanced limit and high coefficient of waterproof. EFFECT: valuable properties of mixture. 1 tbl