Method for producing bituminous compositions

C - Chemistry – Metallurgy – 08 – L

Patent

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C08L 95/00 (2006.01) C09D 195/00 (2006.01)

Patent

CA 2556765

This invention relates to bituminous compositions and methods of producing the same. More particularly, the invention relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent- free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions.

L'invention concerne des compositions bitumineuses et des procédés permettant de produire ces compositions, et plus spécifiquement la production de compositions bitumineuses préparées avec des émulsions de bitume exemptes de solvant, contenant du bitume représentant différentes classes de performance, qui présentent une rhéologie interfaciale dépendant de la température, et pouvant être régulée. Lorsqu'elles sont employées dans des applications de revêtements routiers, ces compositions bitumineuses développent des qualités d'adhérence et de résistance à la charge à des vitesses comparables à celles des compositions de revêtements traditionnelles préparées et posées à chaud, et à des vitesses supérieures aux compositions de revêtements traditionnelles préparées et posées à froid.

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