METHOD FOR OBTAINING GRANULATED BITUMEN Russian patent published in 2018 - IPC C10C3/14 C08K13/00 

FIELD: technological processes.

SUBSTANCE: invention relates to the technology of granulation of bitumen and can be used, in particular, for the production of asphalt-concrete mixtures in road construction, in the manufacture of building materials used for waterproofing concrete structures, sealing gaps, impregnation of materials. Method comprises a step of treating bitumen in an aqueous alkaline solution. When this granules perform a spherical shape with the use of screw gauges, containing in the salt of fatty acids aqueous alkaline solution, the density of which is greater than the density of bitumen, then particles of minerals of natural origin are successively applied to the granules in the form of siftings from the crushing of rubble or sand and the adhesive composition.

EFFECT: technical result is to simplify the manufacturing technology of granulated bitumen, ease of storage and transportation, improving the strength characteristics, reduction of energy consumption, increase in labor productivity in the manufacture of bitumen granules, the use of industrial waste for the deposition of particles of minerals.

1 cl, 1 dwg, 1 ex