Swelling characteristics of bentonites in artificial seawater

Hideo Komine*, Kazuya Yasuhara, Satoshi Murakami

*この研究の対応する著者

研究成果: Article査読

87 被引用数 (Scopus)

抄録

Bentonite is currently designated for use as a buffer material for the repository of high-level radioactive waste because such a material requires swelling characteristics to seal the waste. A high-level radioactive waste disposal facility may be built in a coastal area of Japan because transportation of this waste by ships is feasible. Therefore, it is important to investigate the effects of seawater on a bentonite-based buffer. This study is intended to investigate the influence of sea- water on the swelling pressure and swelling deformation characteristics of five common types of bentonite. The experiments described herein clarify the relations between the influence of seawater grade and compaction density, type of exchangeable cation, montmorillonite content of the bentonite, and vertical pressure condition. Based on experimental results, suitable specifications have been defined for a bentonite-based buffer that can withstand the effects of seawater.

本文言語English
ページ(範囲)177-189
ページ数13
ジャーナルCanadian geotechnical journal
46
2
DOI
出版ステータスPublished - 2009 2月
外部発表はい

ASJC Scopus subject areas

  • 土木構造工学
  • 地盤工学および土木地質学

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