Understanding water migration behavior of unsaturated bentonites for HLW-disposal project

Research output: Contribution to conferencePaper

Abstract

This study discussed water migration behavior in a bentonite-based buffer from an unsaturated state to saturation by the laboratory experiments measuring water absorption and swelling pressure. It investigated and considered water migration behavior in an unsaturated bentonite from the viewpoint of material specifications such as the kinds of bentonite and dry density. From the experimentally obtained results, water migration behaviors in various unsaturated bentonites as buffer are analogous to water-diffusion from initial water content to around 90% saturation degree.

Original languageEnglish
Pages310-313
Number of pages4
DOIs
Publication statusPublished - 2019
Event7th Asia-Pacific Conference on Unsaturated Soils, AP-UNSAT 2019 - Nagoya, Japan
Duration: 2019 Aug 232019 Aug 25

Conference

Conference7th Asia-Pacific Conference on Unsaturated Soils, AP-UNSAT 2019
CountryJapan
CityNagoya
Period19/8/2319/8/25

Keywords

  • Bentonite
  • Montmorillonite
  • Radioactive waste disposal
  • Unsaturation
  • Water absorption

ASJC Scopus subject areas

  • Soil Science

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  • Cite this

    Komine, H. (2019). Understanding water migration behavior of unsaturated bentonites for HLW-disposal project. 310-313. Paper presented at 7th Asia-Pacific Conference on Unsaturated Soils, AP-UNSAT 2019, Nagoya, Japan. https://doi.org/10.3208/jgssp.v07.049