VORRICHTUNG ZUR KONDITIONIERUNG RADIOAKTIVER ODER TOXISCHER ABFAELLE SOWIE VERFAHREN ZU IHRER HERSTELLUNG.

摘要

Packaging of radioactive or toxic wastes which may contain boron in a cement-based matrix. …This process consists in mixing the wastes in a drum (1) in the presence of water with nonaluminous cement, aluminous cement and optionally a siliceous compound and/or a compound containing boron, to form a cement matrix comprising stable phases of straetlingite type, calcium monoboroaluminate and/or borate-containing ettringite (3) and in arranging around the drum (1), if desired, a layer of mortar (5) which may be prepared from cement, deflocculating fumed silica, siliceous sand, smectic clay and water. ……