// Closure of Underground Cavities

SalVE

Applicability of low-temperature salt melts for sealing measures in repositories for radioactive waste in salt host rock

The main objective of the SalVE project is to examine the feasibility of using salt melt systems (SMS) for sealing components in a repository in rock salt and, if applicable, to derive concrete concepts for it. The application is to be evaluated concerning the operational phase, potential retrieval, and long-term secure containment, but also to be considered comprehensively. Subsequently, the following sub-goals arise: Formulating requirements for the SMS and evaluating known representatives regarding their suitability. Through experiments on a liter-scale, the processing, solidification, and reaction behavior are to be investigated, as well as developing an insertion concept for underground use. Finally, planning guidelines are to be formulated for any further demonstration experiments.