Calcium aluminates for quick cesium trapping, application for nuclear power plants
It has recently been shown that cesium dissolved in water could be trapped in a solid structure by adding cementitious calcium aluminates and fume silica. Calcium aluminates are heat resistant and widely used as refractory products. Extensive studies on the rheological properties has been achieved. It is now possible to obtain flow properties to such an extent as to percolate a slurry through broken structures and give high mechanical strength in a short time. This along with the other properties of thermal shock resistance and cesium trapping makes a solution possible for nuclear building safety as a preventitive or a curative material. For example, at Chernobyl, this material could improve safety by remote casting techniques, construction of a structure which could serve as as ash tray under the coruim. Remotelly controlled equipment needed for this are in operation in more than 50 standardized PWR`s. The equipment performs maintenance and inspection tasks with low radiation exposure.
- OSTI ID:
- 107354
- Report Number(s):
- CONF-920957-; ISSN 0003-018X; TRN: 95:021083
- Journal Information:
- Transactions of the American Nuclear Society, Vol. 67, Issue Suppl.1; Conference: 3. annual Nuclear Society International (NSI) meeting: nuclear technology tomorrow, St. Petersburg (Russian Federation), 14-18 Sep 1992; Other Information: PBD: 1993
- Country of Publication:
- United States
- Language:
- English
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