MINERAL POWDER Russian patent published in 2018 - IPC C04B26/26 C04B14/36 C04B20/02 C04B111/27 

FIELD: chemistry.

SUBSTANCE: invention relates to mineral powder compositions and can be used to produce an asphalt-concrete mixture. Mineral powder for the asphalt-concrete mixture, activated by natural raw materials grinding, contains serpentinite as the specified raw material, and grinding is carried out in a rod vibratory shredder to a grain composition, %: less than 1.25 mm – 100; less than 0.315 mm – 92,7; less than 0.071 mm – 88.3.

EFFECT: technical result is an increase in water resistance and adsorption activity.

1 cl, 3 tbl