Patent ID: 8304475

Claim:
A process for the production of a bituminous composition, comprising: (i) producing a mix of aggregates with a maximum diameter which is non-zero and less than or equal to 30 mm and of an amount less than or equal to 0.8 g per square meter of specific surface developed by the aggregates of at least one cationic polymer in the liquid form having a density of cationic charges greater than or equal to 0.5 meq/g and an intrinsic viscosity from 0.01 to 0.8 dl/g, the intrinsic viscosity being measured at 25° C. in a 3M NaCl solution with a capillary viscometer of the Ubbelhode type, the specific surface (Σ sp ) developed by the aggregates being determined according to the following Formula (I): Σ sp =(0.0025 ×G )+(0.023 ×S )+(0.12 ×s )+(1.35 ×f ) Formula (I) in which: G is the mass percentage of the aggregates having a diameter of from 6.3 to 30 mm; S is the mass percentage of the aggregates having a diameter of from 0.315 to less than 6.3 mm; s is the mass percentage of the aggregates having a diameter of from 0.08 to less than 0.315 mm; f is the mass percentage of the aggregates having a diameter of strictly less than 0.08 mm; and (ii) putting the mix obtained in stage (i) into contact with at least one bituminous binder.