Experimental study of clay deformability in terms of initial fabric and soil-water potential

R. J. Krizek*, T. B. Edil

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Included in this paper are the results of an experimental study directed toward improving our understanding of the complex relationship between the stress-strain behavior of clay and its initial fabric and soil-water potential. Three blocks of a kaolinite clay were consolidated from a slurry under controlled conditions of pore fluid chemistry and stress path, and the fabrics of these samples were evaluated by use of scanning electron microscopy, optical microscopy, and X-ray diffraction. Upon completion of consolidation, test specimens trimmed from these samples were placed under air pressure in an extractor and brought to equilibrium at soil-water potentials up to 15 bars. Fabric changes during this phase are expressed in terms of changes in dry density. Then, these specimens were subjected to a constant strain rate uniaxial compression test, and empirical relationships among the undrained modulus, Poisson's ratio, strength parameter, initial fabric, and soil-water potential at the beginning of the test are presented.

Original languageEnglish (US)
Pages (from-to)803-813
Number of pages11
JournalRheologica Acta
Volume13
Issue number4-5
DOIs
StatePublished - Aug 1 1974

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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