Colas

Thierry Delcroix

Jean-Eric Poirier

Michel Ballie

Jean-Paul Fort

Michael John Davis

The present invention generally relates to asphalt mixes with a high content of recycled bituminous materials including a binder modified with glycerol. The present invention further relates to a method for preparing the asphalt mixes and to the use of the asphalt mixes as materials for making courses and/or surfacing for road construction and/or civil engineering. The present invention also relates to the use of glycerol as a correcting agent for the workability and/or of the thermal cracking resistance and/or of the rutting resistance of an asphalt mix with a high content of recycled bituminous materials.

Binder modified with glycerol for making asphalt mixes with a hicontent of recycled bituminous materials

A binder for the production of a layer for road works or civil engineering comprises, with respect to the total weight of the binder:

Binder of vegetable nature for the production of materials for building and/or civil engineering

A binder for the production of a layer for road works or civil engineering comprises, with respect to the total weight of the binder: (a) 2 to 98% in weight of at least one purely natural or modified natural resin, of vegetable origin, having a softening point measured of 30 to 200%; (b) 98 to 2% in weight of at least one oil of vegetable origin having a viscosity at 25&#xb0; C. of 50 mPa&#xb7;s to 1000 Pa&#xb7;s, (c) the binder having: 

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Eaubonne, France

Thierry Delcroix