Bituminous foam

Details Bituminous foam Bituminous foam

C - Chemistry, Metallurgy

08

J

C08J 9/12 (2006.01) C08L 95/00 (2006.01)

Patent

CA 2372546

A method of producing a bituminous foam includes supplying a bitumen in water emulsion from a tank (2) into primary and secondary heating circuits (8, 34), whereby the emulsion is heated (via heating coils 12 and 12') and its pressure raised such that, on discharge to ambient conditions via outlet pipes (30 or 30'), the emulsion foams as water evaporates therefrom.

L'invention concerne un procédé de fabrication de mousse de bitume. Ledit procédé consiste à alimenter, depuis un réservoir (2), un premier et un second circuit de chauffage (8, 34) en bitume mélangé à une émulsion aqueuse. De cette façon, l'émulsion est chauffée (par des serpentins de chauffage (12 et 12') et sa pression est augmentée de sorte que lorsque l'émulsion est évacuée dans des conditions ambiantes par des tuyaux de sortie (30 ou 30'), l'émulsion mousse alors même que l'eau s'évapore.

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