Phase relations for decomposable soils

McDougall, J. R.; Pyrah, I. C.

Abstract

Expressions describing the phase composition and interphase relations for a decomposable soil are derived by distinguishing between inert and decomposable fractions. A relationship between void volume changes and decomposition of the solid fraction, effectively a constitutive relationship, is derived and described by a single parameter. Key patterns of volumetric response to decomposition are highlighted. The decomposition-induced void change parameter is shown to be capable of interpreting the sometimes episodic process of volumetric strain in a decomposable soil-like material.

Citation

McDougall, J. R., & Pyrah, I. C. (2004). Phase relations for decomposable soils. Géotechnique, 54(7), 487-493. https://doi.org/10.1680/geot.54.7.487.46750

• Journal Article Type: Article
• Acceptance Date: Jun 17, 2004
• Online Publication Date: May 25, 2015
• Publication Date: 2004-09
• Deposit Date: Jan 31, 2008
• Journal: Géotechnique
• Print ISSN: 0016-8505
• Electronic ISSN: 1751-7656
• Publisher: ICE Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 54
• Issue: 7
• Pages: 487-493
• DOI: https://doi.org/10.1680/geot.54.7.487.46750
• Keywords: Inert fraction; Decomposable fraction; Decomposition; Void volume change; Volumetric strain; Episodic change
• Public URL: http://researchrepository.napier.ac.uk/id/eprint/1952