Cold scarification and recycling assembly for restoring a road pavement, methods for restoring a road surface with such assembly and use of a mixture of bitumen or a mixture containing a hydrocarbon binding agent in such assembly

A cold scarification and recycling assembly for restoring a road pavement, said cold scarification and recycling assembly being integrated and suitable for being directly connected to a mobile arm of a mini-loader or a tractor and comprising:

• a scarification group, housed in a first region of the cold scarification and recycling assembly and comprising an excavation tool for removing conglomerate material of one or more asphalt layers along a linear advancement path along a working surface of the road pavement, for obtaining a scarified conglomerate material;
• a recycling group, housed in a second region of the cold scarification and recycling assembly and comprising a mixing and shredding element of the scarified conglomerate material, said second region being arranged downstream of the first region, so that the scarified conglomerate material from the scarification group is receivable by the recycling group for regeneration thereof into a regenerated conglomerate material;
• drive means suitable for moving the excavation tool and the mixing and shredding element;
• an interception device that at least partially separates the first region from the second region to convey a passage of the scarified conglomerate material from the first region to the second region;
• and
• a water and/or regenerating fluid dispensing device suitable for dispensing water and/or regenerating fluid directly in the first region and/or in the second region.

A method for restoring a road pavement, the method comprising:

• providing at least one cold scarification and recycling assembly for restoring the road pavement, said cold scarification and recycling assembly being integrated and suitable for being directly connected to a mobile arm of a mini-loader or a tractor and comprising:
• a scarification group, housed in a first region of the cold scarification and recycling assembly and comprising an excavation tool for removing conglomerate material of one or more asphalt layers along a linear advancement path along a working surface of the road pavement, for obtaining a scarified conglomerate material;
• a recycling group, housed in a second region of the cold scarification and recycling assembly and comprising a mixing and shredding element of the scarified conglomerate material, said second region being arranged downstream of the first region, so that the scarified conglomerate material from the scarification group is receivable by the recycling group for regeneration thereof into regenerated conglomerate material;
• drive means suitable for moving the excavation tool and the mixing and shredding element;
• an interception device that at least partially separates the first region from the second region to convey passage of the scarified conglomerate material from the first region to the second region;
• and
• a water and/or regenerating fluid dispensing device, suitable for dispensing water and/or regenerating fluid directly in the first region and/or in the second region;
• providing a mini-loader or r a tractor on which said scarification and recycling assembly is mounted;
• moving the cold scarification and recycling assembly on the road pavement so as to obtain the scarified conglomerate material and, preferably at the same time, injecting the regenerating fluid and optionally the water on the scarified conglomerate material being worked by the cold scarification and recycling assembly, preferably in a single pass in an advancement direction of the mini-loader or the tractor;
• and
• letting the regenerated conglomerate material escape from a recycling chamber of the recycling group by a sieving element.

A method for restoring a road pavement, the method comprising:

• (a) providing at least one cold scarification and recycling assembly for restoring the road pavement, said cold scarification and recycling assembly being integrated and suitable for being directly connected to a mobile arm of a mini-loader or a tractor and comprising:
• a scarification group, housed in a first region of the cold scarification and recycling assembly and comprising an excavation tool for removing conglomerate material of one or more asphalt layers along a linear advancement path along a working surface of the road pavement, for obtaining a scarified conglomerate material;
• a recycling group, housed in a second region of the cold scarification and recycling assembly and comprising a mixing and shredding element of the scarified conglomerate material, said second region being arranged downstream of the first region, so that the scarified conglomerate material from the scarification group is receivable by the recycling group for regeneration thereof into regenerated conglomerate material;
• drive means suitable for moving the excavation tool and the mixing and shredding element;
• an interception device that at least partially separates the first region from the second region to convey passage of the scarified conglomerate material from the first region to the second region;
• and
• a water and/or regenerating fluid dispensing device, suitable for dispensing water and/or regenerating fluid directly in the first region and/or in the second region;
• (b) providing a mini-loader or a tractor on which said cold scarification and recycling assembly is mounted;
• (c) moving the cold scarification and recycling assembly on the road pavement with the interception device in an open configuration, so as to obtain the scarified conglomerate material arranged on the working surface;
• (d) optionally, arranging a binding agent, the binding agent optionally being cement, on the scarified conglomerate material;
• (e) moving the cold scarification and recycling assembly on the scarified conglomerate material arranged on the working surface with the interception device in the open configuration and injecting the regenerating fluid and optionally water on the scarified conglomerate material being worked by the cold scarification and recycling assembly,
• (f) letting the regenerated conglomerate material escape from a recycling chamber of the recycling group by a sieving element;
• and
• (g) optionally, smoothing and compacting the regenerated conglomerate material.