Use of an exothermic mixture for manufacturing a bituminous mix

Details Use of an exothermic mixture for manufacturing a bituminous mix Use of an exothermic mixture for manufacturing a bituminous mix

C - Chemistry, Metallurgy

08

K

C08K 3/00 (2006.01) C08K 5/09 (2006.01) C08K 5/098 (2006.01) C08L 95/00 (2006.01) E01C 7/24 (2006.01)

Patent

CA 2713942

The present invention relates to the use of an exothermic mixture of at least i) an acidic anhydride or an acid salt and of at least ii) a basic anhydride or a basic salt, in a cold, warm or semi-warm bituminous mix based on a bituminous binder containing water in order to increase the temperature of the bituminous mix. It also relates to a process for manufacturing a bituminous mix using the exothermic mixture, to the bituminous mix capable of being obtained by this process and to the use thereof for the manufacture of a road surface. It additionally relates to the use of the exothermic mixture in order to dry the aggregates and to the aggregates containing this mixture. Finally, it relates to the use of the exothermic mixture in a bitumen emulsion.

La présente invention concerne une utilisation d'un mélange exothermique d'au moins i) un anhydre d'acide ou un sel d'acide et d'au moins ii) un anhydre basique ou un sel basique, dans un enrobé bitumineux à froid, tiède ou semi-tiède à base de liant bitumineux contenant de l'eau pour augmenter la température de l'enrobé bitumineux. Elle concerne également un procédé de fabrication d'un enrobé bitumineux utilisant le mélange exothermique, l'enrobé bitumineux susceptible d'être obtenu par ce procédé et son utilisation pour la fabrication d'un revêtement routier. Elle concerne de plus l'utilisation du mélange exothermique pour assécher les granulats et les granulats contenant ce mélange. Enfin, elle concerne l'utilisation du mélange exothermique dans une émulsion de bitume.

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