METHOD OF OBTAINING BITUMEN EMULSION AND THE BITUMEN EMULSION Russian patent published in 2018 - IPC C08L95/00 B01F17/00 

FIELD: construction.

SUBSTANCE: technical solution relates to the field of building materials, more particularly to bitumen emulsions, and can be used for the production of heat and waterproofing materials intended for the construction and repair of various roofs, as well as in road construction as a binder for asphalt concrete mixtures. Method for producing a bitumen emulsion comprises the preparation of an aqueous solution of an emulsifier by mixing under a constant mixing in a certain proportion in water a solid emulsifier, that is used as phosphogypsum, and subsequent introduction into the finished aqueous solution of the emulsifier of the heated bitumen. Before mixing the solid emulsifier with water, it is crushed and milled in air into a powdered activated dispersed medium with a particle size of 0.063–0.1 mm, then connect it with water at temperature of 15–30 °C, and the bitumen is heated up-to temperature of 130–160 °C. Bitumen emulsion obtained after mixing the components has a composition, by mass %: bitumen – 20–25 %, phosphogypsum – 50–60 %, service water – 20–25 %.

EFFECT: increase the processability of the method of preparation of bitumen emulsion and its application at the place of production, increase the shelf life of the bitumen emulsion and the strength characteristics of the final product (structure).

8 cl, 1 dwg