METHOD FOR MANUFACTURE OF MIXTURE BITUMEN-FILLER SUITABLE FOR PAVEMENT SURFACING Russian patent published in 2009 - IPC C08L95/00 

FIELD: construction.

SUBSTANCE: mixture of bitumen-filler is manufactured as a result of mixing of mineral filler, water, demulsifier, containing hydraulic cement, and cationic emulsion of bitumen of "oil in water" type that contains salt or salts prepared from polyvalent phosphoric acid and diamine as emulsifier. Diamine is described by formula (I), where one or more of groups R₁, R₂, R₄ and R₅ designate hydrocarbon group, which contains 6-22, preferably 8-20 carbon atoms, and remaining groups R₁, R₂, R₄ and R₅ represent alkyl groups, which contain 1-4 carbon atoms, and/or groups -(A)_SH, where A represents alkyleneoxy group containing 2-3 carbon atoms, and s represents number in the range of 1-4, R₃ represents alkylene group containing 2-4 carbon atoms.

EFFECT: quick-set mixture bitumen-filler is suitable for cold surfacing of pavement in roads.

18 cl, 1 ex, 2 tbl