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It is planned to produce the backfill above ground and<br />
to pump it into the galleries.<br />
Objectives of the backfill measure<br />
1) filling the void space in the disposal galleries<br />
2) limiting the amount of free water in the repository<br />
3) providing stability to the galleries<br />
4) providing a chemical environment consistent with the design concept<br />
4a) no disturbance of the corrosion-protective environment<br />
4b) no formation of mobile radionuclide complexes<br />
5) no damage of the gallery walls<br />
6) limited strength to enable the retrieval of waste packages<br />
Engelhardt/Haverkamp<br />
Engelhardt, H.-J.; Haverkamp, B.; von Borstel, L.E.; Van Marcke, Ph. & Coppens, E.<br />
ONDRAF/NIRAS DBE Technology GmbH – <strong>Backfill</strong> – Project & ONDRAF/NIRAS<br />
Tests B 31/07/2014 & C Techno (MPA – Meeting Braunschweig)<br />
Category <strong>WM2015</strong> Brussels, -B <strong>15374</strong> & 21/02/2013 C<br />
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