Community Research and Development Information Service - CORDIS


ESDRED.Contract Number: FI6W-CT-2004-508851. Module 1 Buffer construction technology. Final Report

Funded under: FP6-IST


R&D projects before ESDRED Module 1 had already studied several bentonite materials and their
conditioning to investigate their application as key materials in buffers, backfill or seals in geological repositories (e.g. RESEAL in Mol, or BOS in Grimsel). Most of these projects had been performed on a small or intermediate scale, and only a few addressed the emplacement techniques related to these components. The demonstration testing at full scale that had been performed was essentially limited to the vertical disposal configuration (e.g. work by SKB related to the KBS-3V design). From studying these projects it was clear that the horizontal configuration would pose specific challenges that had not been sufficiently addressed. At the same time, the horizontal configuration was getting increased consideration in disposal concepts (reference or alternative) of a number of EU countries. Module 1 was therefore in the first place set up to advance the state-of-the-art of the technology relating to the construction of the buffer or the
backfill around a horizontally disposed high-level waste package.

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