Swelling properties of smectite up to 90°C In situ X-ray diffraction experiments and molecular dynamic simulations

K. Kawamura, Y. Ichikawa, M. Nakano, K. Kitayama, H. Kawamura

Research output: Contribution to journalConference articlepeer-review

26 Citations (Scopus)

Abstract

X-ray diffraction profiles were observed using a θ-θ type goniometer with a hand-made sample chamber for controlling the vapour pressure of H2O up to the saturated vapour pressure of H2O and temperatures up to 100°C. The obtained profiles for temperatures of 50, 70 and 90°C show the nearly stepwise swelling properties at these temperatures. The transformation P(H2O) values were determined for one to two and two to three layers of interlayer water molecules. Using molecular dynamic simulations the structural and energy properties were discussed for swelling behaviours.

Original languageEnglish
Pages (from-to)75-79
Number of pages5
JournalEngineering Geology
Volume54
Issue number1-2
DOIs
Publication statusPublished - Sep 1999
EventProceedings of the 1998 Symposium on Microstructural Modelling of Natural and Artificially Prepared Clay Soils with Special Emphasis on the Use of Clays for Waste Isoaltion - Lund, Swed
Duration: Oct 12 1998Oct 14 1998

Keywords

  • Clay mineral
  • In situ measurement
  • Molecular dynamic simulation
  • Swelling property
  • X-ray diffraction

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

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