Abstract
The effect of γ-radiation on the dissolution of candidate high-level waste glasses was investigated in potential disposal environments at 90°C. The media consisted of mixtures of Boom Clay, bentonite clay and cement with clay water. During the experiments the pH of Boom Clay decreased, probably mainly by radiolytical oxidation of pyrite. The addition of bentonite, cement and glass buffered the pH decrease. Under radiation the glass mass losses decreased, whereas the leach rate of soluble elements was not influenced or appeared to increase. This is explained through the radiolytical acidification, and possibly by bubble formation in the glass.
| Original language | English |
|---|---|
| Pages (from-to) | 227-235 |
| Number of pages | 9 |
| Journal | Materials Research Society Symposium - Proceedings |
| Volume | 663 |
| State | Published - 2001 |
| Event | Scientific Basis for Nuclear Waste Management XXIV - Sydney Duration: 27 Aug 2000 → 31 Aug 2000 |
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering