Interface agents for the preparation of road coatings cold

The invention relates to the manufacture of a bituminous product embedded type or coating which comprises a contacting, at a temperature less than 110 ° C, inorganic particles with an emulsion (i) after emulsification of a binder hydrocarbon in an aqueous phase at a higher mixing temperature in the contacting temperature, and (ii) comprising an additive that: - form a homogeneous mixture with the hydrocarbon binder at the mixing temperature; - is not compatible with the hydrocarbon binder to the contacting temperature; - is used in an amount greater than its solubility in the aqueous medium of the emulsion at the temperature of contacting.