Shielding module for a radioactive waste container

A shielding module for a radioactive waste container (C), comprising a perimeter wall (1) with at least an upper section (12) and a lower section (11), overlapped and coupled to each other, and a closing lid (2), which define a cavity (3) suitable for housing the container (C), and a number of metal elements (4) attached along the perimeter wall (1) and protruding into said cavity (3), said metal elements (4) forming means for limiting lateral movement, for centring and for dampening impacts against the side wall of the container (C) with respect to the shielding module (10), in the event of potential external impacts or the sideways fall of the assembly formed by the container (C) and the shielding module (10), characterised in thatthe lower section (11) and the upper section (12) of the perimeter wall (1) comprise respective hollow steel metal structures, provided with an upper mouth (111, 121) for filling with concrete and the tongue and groove fitting of the upper section (12) and the lid (2), respectively, and that the upper section (12) comprises, at its lower end, anchoring blocks (122) housed vertically in the lower section (11) and provided with respective horizontal holes for the passage of fixing screws (7) from the upper section (12) to the lower section (1).