C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 24/08 (2006.01) C04B 26/26 (2006.01) C08K 5/101 (2006.01) E01C 7/18 (2006.01)
Patent
CA 2760379
The present invention relates to a bituminous binder comprising bitumen and at least two additives for reducing temperatures required for manufacturing, applying, and compacting coated materials or asphalt, the first additive being a pure or mixed tall oil derivative, and the second additive being a monoester of a fatty acid mixture. The invention also relates to methods for the low-temperature preparation of coated materials and asphalt produced from the binder containing said additives. The invention finally relates to the use of the binder containing the additives for making coated materials and asphalt at lower temperatures, and to the use of said coated materials and asphalt, in particular for roadwork applications for foundation layers, base layers, sub-base layers, or surface layers such as binding layers and/or roadway surfaces.
La présente invention concerne un liant bitumineux comprenant du bitume et au moins deux additifs permettant de diminuer les températures de fabrication, de mise en oeuvre, de compactage des enrobés et des asphaltes, le premier additif étant un dérivé de Tall Oil, pris seul ou en mélange, et le deuxième additif étant un monoester d'un mélange d'acides gras. L'invention concerne aussi les procédés de préparation à basse températures des enrobés et des asphaltes obtenus à partir du liant additivé. L'invention concerne enfin l'utilisation du liant additivé pour fabriquer à plus basses températures des enrobés et des asphaltes, et l'utilisation de ces enrobés ou asphaltes, notamment, en application routière pour des couches de fondation, des couches de base, des couches d'assise, des couches de surface telles que les couches de liaison et/ou les couches de roulement.
Devis Roland
Herault Joel
Lapalu Laurence
Montpeyroux Alain
Thiebaut Benoit
Robic
Total Raffinage Marketing
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