Bitumen and filled resin emulsion for road surfacing emulsion

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 95/00 (2006.01) C09D 195/00 (2006.01) E01C 7/26 (2006.01) E01C 7/35 (2006.01) C08L 63/00 (2006.01)

Patent

CA 2342713

The invention concerns a composite bitumen/resin emulsion for producing a layer to protect road surfaces against damage caused by oil derivatives, produced from a first emulsion comprising a resin and a second emulsion comprising a bituminous binder and a resin hardener. A pigment preparation and/or a filling agent consisting of a filler or sand or fine sand or combinations thereof can be incorporated in the first emulsion, the second emulsion or in the composite emulsion resulting from the mixture of the two emulsions. The filled composite emulsion enables to produce road surfaces of thin films in one or several layers.

L'invention consiste en une émulsion composite bitume/résine pour couche de protection de surface de chaussées, contre les agressions des dérivés du pétrole réalisée à partir d'une première émulsion comportant une résine et une seconde émulsion comportant un liant bitumineux et un agent de réticulation de la résine. Une préparation pigmentaire et/ou une charge constituée par un filler ou un sable ou un sablon ou leurs combinaisons, peuvent être incorporées dans la première émulsion, la seconde émulsion ou dans l'émulsion composite résultant du mélange des deux émulsions. L'émulsion composite chargée permet la réalisation de revêtements de surface du type films minces en une ou plusieurs couches.

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