Abstract: The present invention refers to a process for the production of an additive composition intended to be mixed into a bituminous conglomerate for road paving. The process includes grinding a mixed waste material containing a mixture of plastic materials, which includes at least one plastic material based on a polyolefin thermoplastic material, washing the ground mixed waste material and separating a portion of low-density material which contains the plastic material based on a polyolefin thermoplastic polymer from the mixed waste material. This portion of low-density material is then ground to a particle size between 10 mm and 20 mm; and then mixed with a material based on polyvinyl butyral. The resultant mixture is further ground to produce an additive composition having a particle size between 4 mm and 6 mm.

Abstract: The present invention refers to a process for the production of an additive composition intended to be mixed into a bituminous conglomerate for road paving. The process includes grinding a mixed waste material containing a mixture of plastic materials, which includes at least one plastic material based on a polyolefin thermoplastic material, washing the ground mixed waste material and separating a portion of low-density material which contains the plastic material based on a polyolefin thermoplastic polymer from the mixed waste material. This portion of low-density material is then ground to a particle size between 10 mm and 20 mm; and then mixed with a material based on polyvinyl butyral. The resultant mixture is further ground to produce an additive composition having a particle size between 4 mm and 6 mm.

Abstract: Additive composition intended to be mixed into bituminous conglomerates for road paving, comprising a thermoplastic polymer, a polymeric compound selected from the group consisting of polyvinylbutyral (PVB), polyethylacrylate (PEA) polymethylacrylate (PMA), polybutylacrilate (PBA), lignin and mixtures thereof, and graphene, preferably wherein the graphene is contained in quantity between 0.005 and 1% by weight based on the total weight of the composition; it is also described a bituminous conglomerate suitable for making a road paving, comprising aggregates, a filler, bitumen and the additive.

Abstract: Additive composition compositions intended to be mixed into bituminous conglomerates for road paving, comprising containing a thermoplastic polymer, a polymeric compound selected from the group consisting of polyvinylbutyral (PVB), polyethylacrylate (PEA) polymethylacrylate (PMA), polybutylacrilate (PBA), lignin and mixtures thereof, and graphene are disclosed. preferably wherein The graphene is contained in a quantity between 0.005 and 1% by weight based on the total weight of the composition. A bituminous conglomerate suitable for making a road paving, containing comprising aggregates, filler, bitumen and said the additive is also disclosed.

Abstract: Additive composition compositions intended to be mixed into bituminous conglomerates for road paving, comprising containing a thermoplastic polymer, a polymeric compound selected from the group consisting of polyvinylbutyral (PVB), polyethylacrylate (PEA) polymethylacrylate (PMA), polybutylacrilate (PBA), lignin and mixtures thereof, and graphene are disclosed. preferably wherein The graphene is contained in a quantity between 0.005 and 1% by weight based on the total weight of the composition. A bituminous conglomerate suitable for making a road paving, containing comprising aggregates, filler, bitumen and said the additive is also disclosed.

Abstract: An anti-icing composition suitable for incorporation in bituminous conglomerates for road paving, comprising an alkali metal chloride, an alkaline-earth metal carbonate, an alkali or alkaline-earth metal formate, a polysiloxane and optionally an alkaline-earth metal chloride, in which the polysiloxane is contained in an amount between 0.5 and 2.0% by weight of the total weight of the composition; it is also described a bituminous conglomerate adapted to provide an anti-icing road paving, comprising aggregates, bitumen, filler and from 2 to 6% by weight of such anti-icing composition of the weight of the aggregates.