Abstract: The present invention relates to hot or warm asphalt mix comprising a granular fraction and a hydrocarbon-based binder, characterised in that the elements of the granular fraction have dimensions between 0 mm and 10 mm, and in that the hydrocarbon-based binder comprises a workability additive, having a melting point above 60° C. and below 130° C., said asphalt mix being resistant to rutting, compact and workable, with a workability, measured with a Nynas workability meter at the working temperature of the asphalt mix, of less than 350N and insulating with a thermal conductivity, ?, of less than 1 W/m·K. It also relates to a road surfacing, in particular comprising an integration layer based on the asphalt mix comprising pipes of a heat exchanger device. It finally relates to a method for preparing such a road surfacing.

Abstract: The present invention relates to bituminous coated materials including a granular fraction and a binder, characterised in that in the granular fraction all or part of the elements are selected from among lightweight, non-absorbent aggregates with a density of less than 1.6 t/m3 and a water absorption coefficient of less than 15%. The invention also relates to the use of light, non-absorbent aggregates with a density of less than 1.6 t/m3 and a water absorption coefficient of 3% to 15% for the production of light bituminous coated materials. The invention further relates to pavements obtained by applying at least one layer of the coated materials according to the invention and to a method for applying a surface course to a surface raised above the ground which includes a step of applying coated materials according to the invention.

Abstract: The present invention relates to bituminous coated materials including a granular fraction and a binder, characterised in that in the granular fraction all or part of the elements are selected from among lightweight, non-absorbent aggregates with a density of less than 1.6 t/m3 and a water absorption coefficient of less than 15%. The invention also relates to the use of light, non-absorbent aggregates with a density of less than 1.6 t/m3 and a water absorption coefficient of 3% to 15% for the production of light bituminous coated materials. The invention further relates to pavements obtained by applying at least one layer of the coated materials according to the invention and to a method for applying a surface course to a surface raised above the ground which includes a step of applying coated materials according to the invention.

Abstract: The invention relates to a bituminous coating comprising a material of low bulk density ranging between 0.01 and 0.3 t/m3 in sufficient quantity to improve the acoustic performance thereof.

Abstract: The invention relates to a bituminous coating comprising a material of low bulk density ranging between 0.01 and 0.3 t/m3 in sufficient quantity to improve the acoustic performance thereof.

Abstract: The present invention relates to a hot-melt binder based on asphalt or bitumen, comprising at least one additive for lowering the production temperature of the asphalt product relative to that of the base product, said additive being a triglyceride of saturated fatty acids. The present invention likewise relates to processes for preparing an asphalt or bituminous product coated material, in which the mixing temperature is lowered. The present invention finally relates to an asphalt product or coated bituminous material comprising a hot-melt binder according to the invention.