論文

査読有り 本文へのリンクあり
2020年

Movement of water in compacted bentonite and its relation with swelling pressure

Canadian Geotechnical Journal
  • Hailong Wang
  • ,
  • Takumi Shirakawabe
  • ,
  • Hideo Komine
  • ,
  • Daichi Ito
  • ,
  • Takahiro Gotoh
  • ,
  • Yuta Ichikawa
  • ,
  • Qiao Chen

57
6
開始ページ
921
終了ページ
932
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1139/cgj-2019-0219
出版者・発行元
CANADIAN SCIENCE PUBLISHING

© 2020, Canadian Science Publishing. All rights reserved. A testing procedure was proposed to study water movement in compacted bentonite and the development of swelling pressure (ps) when compacted bentonite specimens were wetted. In this procedure, a multi-ring mold was introduced for ps measurements, after which the specimen was sliced for X-ray diffraction to find movement of water in the interlayer space of montmorillonite. Results revealed a relation between four phases of ps development and evolution of four states of interlayer water molecule arrangement of montmorillonite (L): When ps reached its first peak in phase I, L moved from 1 row water arrangement (1w) to at least 2w; when ps decreased and re-increased in phases II or III, L moved from 2w to at least 3w; and when ps reached a steady state in phase IV, L = 3w. The w distribution in the compacted bentonite was also measured as water absorption time increased. Based on those results, the global water movement was estimated in terms of diffusivity (D) following a method employing Boltzmann transform. Results of comparisons implied that D calculated using this method matched experimental data well and the method was rather easily handled.

Web of Science ® 被引用回数 : 1

リンク情報
DOI
https://doi.org/10.1139/cgj-2019-0219
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000537711100009&DestApp=WOS_CPL
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85083308187&origin=inward 本文へのリンクあり
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85083308187&origin=inward

エクスポート
BibTeX RIS