In France, a number of civil nuclear facilities date from the 1960s and some of them will soon reach the limit of their service life. One of the issues at stake at the regional level is the management of the large volumes of waste generated by the deconstruction of reinforced concrete infrastructures. These demolition concretes are destined to be stored, whereas, due to the safety requirements of the infrastructures from which they are derived, they could constitute a quality material. The context of the nuclear industry offers a real opportunity for innovation through the investigation of a new way of recovery with minimal destructuring of the initial material. This new way of material recovery would be based on the reuse of reinforced concrete blocks deconstructed by cutting as modules for new constructions. This concept of reuse of structural elements exists in the building industry with in particular technical recommendations for the reuse of walls. However, brakes are still identified and in particular the ignorance of the properties of the constituent materials and a compartmentalization of die on the cycle. In the case of the concrete of power plants, their high mechanical properties, their rate of reinforcement often important make of these concretes good candidates for this type of recovery tending to reduce the "downcycling" by taking advantage of the performances of the deconstructed elements. In addition, the specific industrial context (nuclear structures of similar initial design) makes it possible to envisage deconstruction techniques adapted to an optimized recovery. The objective is therefore to develop modules that can be used in various applications within nuclear civil engineering (retaining walls, storage structures, secondary hydraulic structures, etc.). This would also ensure a virtuous path of recovery capable of absorbing, within the nuclear industry, the large volumes resulting from dismantling.