Method for dissociating different constituents of a heterogeneous artificial material

The method according to any one of the preceding claims, wherein the at least one rotation parameter of the vibrators (8a, 8b, 8c, 8d) is adjusted in the following manner:

• determining at least one property of at least one constituent of the material;
• from said determined property, calculating a target force allowing to dissociate the at least one constituent from the other constituents;
• adjusting the at least one rotation parameter of the vibrators (8a, 8b, 8c, 8d) to obtain the target force.

The method according to any one of the preceding claims, wherein all or part of at least one fraction of the fragmented material is recovered which is recirculated to feed the fragmentation machine (1).

The method according to any one of the preceding claims, wherein the material to be fragmented is concrete and comprises a first constituent called gravel and a second constituent called mortar, the gravel being trapped in the mortar, the method comprising determining a target fragmentation force generating a constraint in the bed-material greater than or equal to the compressive strength of the concrete.

The method according to any one of the preceding claims, wherein the material to be fragmented is concrete and comprises a first constituent called gravel and a second constituent called mortar, the gravel being trapped in the mortar, the method comprising:

• recovering gravel and mortar at the output of the fragmentation machine;
• subjecting the gravel and mortar to a sorting between particles called coarse particles of a size greater than a given value corresponding to the minimum expected size of the gravel and particles called fine particles of a size less than said given value.