Prediction for swelling characteristics of compacted bentonite

Hideo Komine*, Nobuhide Ogata

*この研究の対応する著者

研究成果: Article査読

171 被引用数 (Scopus)

抄録

Compacted bentonites are attracting greater attention as back-filling (buffer) materials for high-level nuclear waste repositories. For this purpose, it is very important to quantitatively evaluate the swelling characteristics of compacted bentonite. New equations for evaluating the relationship between the swelling deformation of compacted bentonite and the distance between two montmorillonite layers are derived. New equations for evaluating the ion concentration of pore water and the specific surface of bentonite, which significantly influence the swelling characteristics of compacted bentonite, are proposed. Furthermore, a prediction method for the swelling characteristics of compacted bentonite is presented by combining the new equations with the well-known theoretical equations of repulsive and attractive forces between two montmorillonite layers. The applicability of this method was investigated by comparing the predicted results with laboratory test results on the swelling deformation and swelling pressure of compacted bentonites.

本文言語English
ページ(範囲)11-22
ページ数12
ジャーナルCanadian geotechnical journal
33
1
DOI
出版ステータスPublished - 1996 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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