Experimental study on swelling characteristics of compacted bentonite

H. Komine, N. Ogata

Research output: Contribution to journalArticlepeer-review

268 Citations (Scopus)


Compacted bentonites are attracting greater attention as back-filling (buffer) materials for repositories of high-level nuclear waste. Various laboratory tests on the swelling deformation and swelling pressure of compacted bentonites were performed, and the following conclusions were drawn. (1) The curve of swelling deformation versus time is strongly dependent on the initial dry density, vertical pressure, and initial water content. (2) The maximum swelling pressure increases exponentially with increasing initial dry density, whereas the maximum swelling pressure is almost independent of initial water content. (3) The swelling mechanism of compacted bentonite was considered on the basis of the swelling behaviour of swelling clay particles such as montmorillonite. -from Authors

Original languageEnglish
Pages (from-to)478-490
Number of pages13
JournalCanadian geotechnical journal
Issue number4
Publication statusPublished - 1994 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology


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