Abstract
Bentonite-based buffer for high-level radioactive waste (HLW) disposal is expected to fill the interstitial spaces around buffer materials by its swelling deformation. This study performs one-dimensional model tests simulating the relation around the buffer and evaluates the self-sealing capability of the buffer quantitatively. It also investigates the applicability of the theoretical equations for evaluating the swelling characteristics of a bentonite-based buffer, first proposed by Komine and Ogata, to analysis of the self-sealing capability by comparing the calculated and experimentally obtained results. Furthermore, this study has shown the design flow for specifications of bentonite-based buffer from the viewpoint of self-sealing capability.
| Original language | English |
|---|---|
| Pages | 1833-1836 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 2015 |
| Event | 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 - Fukuoka, Kyushu, Japan Duration: 2015 Nov 9 → 2015 Nov 13 |
Other
| Other | 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 |
|---|---|
| Country/Territory | Japan |
| City | Fukuoka, Kyushu |
| Period | 15/11/9 → 15/11/13 |
Keywords
- Bentonite
- High-level radioactive waste disposal
- Montmorillonite
- Swelling
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Soil Science