Process for preparing an asphalt mixture

Details Process for preparing an asphalt mixture Process for preparing an asphalt mixture

C - Chemistry, Metallurgy

08

L

C08L 95/00 (2006.01) C10C 3/00 (2006.01) E01C 19/10 (2006.01)

Patent

CA 2731923

A process for preparing an asphalt mixture from recycled asphalt pavement (RAP), virgin aggregate, filler and first and second binder materials, is disclosed. The process comprises steps of transporting RAP through a first drum; transporting virgin aggregate through a second drum; adding a first binder material to the RAP in the first drum to provide treated RAP; supplying the treated RAP, the virgin aggregate, filler and a second binder material to a mixing zone; and mixing to provide the asphalt mixture.

L'invention porte sur un procédé de préparation d'un mélange d'asphalte à partir de revêtement d'asphalte recyclé, de granulat vierge, de charge et de premier et second liants. Le procédé comprend les étapes consistant à transporter le revêtement d'asphalte recyclé à travers un premier tambour; à transporter le granulat vierge à travers un second tambour; à ajouter un premier liant au revêtement d'asphalte recyclé dans le premier tambour pour obtenir du revêtement d'asphalte recyclé traité; à diriger le revêtement d'asphalte recyclé traité, le granulat vierge, la charge et un second liant vers une zone de mélange; et à mélanger pour obtenir le mélange d'asphalte.

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