BITUMINOUS COMPOSITION PERFORMING WELL AT LOW TEMPERATURE AND AT INTERMEDIATE TEMPERATURE Russian patent published in 2018 - IPC C08L95/00 C08L53/02 E01C7/26 

FIELD: construction.

SUBSTANCE: invention relates to the field of bitumen, in particular to bitumen compositions intended to cover roads or highways, as well as bituminous binders, bituminous-mineral mixtures, roads or highways, the use of bitumen-mineral mixtures to build roads or highways. Composition comprises: (a) at least one bitumen with needle penetrability at 25°C greater than or equal to 600 tenths of a millimetre, the value 900 tenths of a millimetre being excluded, (b) at least one blown bitumen having needle penetrability at 25°C of between 10 and 50 tenths of a millimetre, and (c) at least one polymer that is crosslinkable and selected from elastomers and/or plastomers, said penetrability values being measured according to standard NF EN 1426.

EFFECT: technical result is the production of bitumen compositions having improved resistance to aging, both at low and intermediate temperatures, while maintaining an economically acceptable production cost.

24 cl, 1 dwg, 5 tbl, 5 ex