Community Research and Development Information Service - CORDIS


The present report presents the main results obtained during the period 1980 - 1982 in the Belgian R&D work on geological disposal of conditioned radioactive waste in the Boom clay beneath the Mol site. The results obtained during the previous five-year period (1975 - 1979) were published in document EUR 7650 FR. Multiple research projects have been continued; both experimental research in the field and in the laboratory and theoretical studies. A regional hydrological observation network has been set up which permitted an assessment of the hydrogeological system over and under-lying the Boom clay as well as the modelling of groundwater flow in the area. Clay samples collected during the drilling campaigns were submitted to a number of analyses with a view to chemical characterization and determination of geotechnical properties. Various studies were performed concerning the migration of radionuclides through the clay and an analytical computer model was developed. The corrosion behaviour of various candidate materials for HLW containers and repository linings were tested under different conditions possibly encountered in the clay formation. Furthermore, various backfill and sealing materials and mixtures have been selected and are being tested. Finally, the activities deployed for the safety analysis were continued, mainly concentrated upon two approaches: the probabilistic risk assessment and the performance assessment of a mined repository under normal evolution conditions.

Additional information

Bibliographic Reference: EUR 9077 EN (1984) FS, 258 P., BFR 800, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
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