Process and system for production of a warm foam mix asphalt...

Details Process and system for production of a warm foam mix asphalt... Process and system for production of a warm foam mix asphalt...

Category

C - Chemistry, Metallurgy

Subcategory

08

Subsubcategory

L

IPC codes

C08L 95/00 (2006.01) C08J 3/20 (2006.01) E01C 7/18 (2006.01) E01C 19/10 (2006.01)

Type

Patent

Patent number

CA 2401349

Description

The invention describes a process for preparing a warm mix asphalt composition by mixing an aggregate grain material with a soft binder, and adding a hard binder to the mixed aggregate grain material. The hard binder is foamed in a foaming process before it is introduced to the mixed grained aggregate material. A system for preparing the warm mix asphalt composition comprising a drying drum for heating and drying the aggregate component, a mixing mill for mixing the asphalt components and a mix storage silo, where the system also includes foam production facilities for foaming the hard binder before introduction to the mixing mill, is also disclosed.

L'invention concerne un procédé de préparation d'une composition d'asphalte mélangé à chaud, consistant à mélanger une granulat avec un liant mou, et à ajouter un liant dur au mélange. Ce liant dur est moussé au cours d'un procédé de moussage avant d'être introduit dans le mélange. L'invention concerne également un système de préparation de cette composition d'asphalte mélangé à chaud, comprenant un tambour sécheur destiné à chauffer et à sécher le granulat, un moulin-mélangeur destiné à mélanger les composants asphaltiques, et un silo de stockage destiné au stockage du mélange obtenu. Ce système comprend également une installation de production de mousse destinée à mousser le liant dur avant son introduction dans le moulin-mélangeur.

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