ASPHALT CONCRETE MIX Russian patent published in 2014 - IPC C04B26/26 C04B28/36 C04B111/20 C04B111/27 

FIELD: construction.

SUBSTANCE: asphalt concrete mix containing a binding agent on a bitumen base and a mineral part containing crushed stone, slag sand with size of 0-5 mm and mineral powder contains the above binding agent, which additionally includes sulphur at the ratio of sulphur to bitumen of 10-40:60-90, the above sulphur-bitumen binding agent in the quantity of 3.5-5.0 wt % with regard to the mineral part, and as mineral powder - fine dump tailings of neutralisation of wastes of a metallurgical plant, which are obtained at cleaning of a liquid phase of pulp of wastes of sulphur sulphide floatation of a copper-nickel sulphide concentrate from iron and nonferrous metals, and as crushed stone - lime-rock particles and the above sand - sand of slags of Nadezhda Metallurgical Plant at the following component ratio, wt %: bitumen 2.7-4.0 above 100%, sulphur 0.35-1.8 above 100%, the above crushed stone 50.5-60.0, the above slag sand 33.5-41.3, and the above mineral powder 5.5-10.0.

EFFECT: increasing strength and water resistance of asphalt concrete at reduction of its prime cost.

9 tbl