Behaviour of lignosulfonate-treated soil under cyclic loading

Chen, Q; Indraratna, B; Rujikiatkamjorn, C

Behaviour of lignosulfonate-treated soil under cyclic loading

Chen, Q Indraratna, B

Rujikiatkamjorn, C

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Publisher:: Thomas Telford Ltd.
Publication Type:: Journal Article
Citation:: Proceedings of the Institution of Civil Engineers: Ground Improvement, 2016, 169, (2), pp. 109-119
Issue Date:: 2016-05-01

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Field	Value	Language
dc.contributor.author	Chen, Q
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.contributor.author	Rujikiatkamjorn, C https://orcid.org/0000-0001-8625-2839
dc.date.accessioned	2022-02-21T06:52:15Z
dc.date.available	2022-02-21T06:52:15Z
dc.date.issued	2016-05-01
dc.identifier.citation	Proceedings of the Institution of Civil Engineers: Ground Improvement, 2016, 169, (2), pp. 109-119
dc.identifier.issn	1755-0750
dc.identifier.issn	1755-0769
dc.identifier.uri	http://hdl.handle.net/10453/154735
dc.description.abstract	In this paper, the effectiveness of an environmentally-friendly stabilising agent for soil, lignosulfonate (LS), is examined through a series of cyclic triaxial tests. The deformation characteristics of the contents of LS-treated sandy silt when subjected to undrained cyclic triaxial loading are investigated at different confining pressures and cyclic stress levels. Test results indicate that under a given confining pressure and cyclic deviator stress, the rate of increase in axial strain is controlled by the addition of LS, which results in a smaller value of plastic axial strain (εa,p). For all the untreated and LS-treated specimens, the rate of increase in εa,p increases with the increasing cyclic stress ratio (CSR). A critical value of CSR exists for a given LS content (i.e. CSRCR), below which the specimens could remain stable irrespective of the number of load cycles. The longevity of treated specimens is improved significantly, especially for the specimens with LS=2% by weight. As the treated specimens are subjected to a high level of cyclic stress, the excess pore pressure shows a decreasing trend with the increasing number of cycles, but then increases again rapidly when the failure becomes imminent. Compared with the untreated soil, the resilient modulus increases significantly as a result of LS treatment, especially for LS=2%. When the LS > 2%, there is no additional advantage, implying that 2% LS treatment is an optimum for this soil.
dc.language	en
dc.publisher	Thomas Telford Ltd.
dc.relation.ispartof	Proceedings of the Institution of Civil Engineers: Ground Improvement
dc.relation.isbasedon	10.1680/jgrim.15.00004
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0503 Soil Sciences, 0905 Civil Engineering
dc.title	Behaviour of lignosulfonate-treated soil under cyclic loading
dc.type	Journal Article
utslib.citation.volume	169
utslib.for	0503 Soil Sciences
utslib.for	0905 Civil Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2022-02-21T06:52:14Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	169
utslib.citation.issue	2

Abstract:

In this paper, the effectiveness of an environmentally-friendly stabilising agent for soil, lignosulfonate (LS), is examined through a series of cyclic triaxial tests. The deformation characteristics of the contents of LS-treated sandy silt when subjected to undrained cyclic triaxial loading are investigated at different confining pressures and cyclic stress levels. Test results indicate that under a given confining pressure and cyclic deviator stress, the rate of increase in axial strain is controlled by the addition of LS, which results in a smaller value of plastic axial strain (εa,p). For all the untreated and LS-treated specimens, the rate of increase in εa,p increases with the increasing cyclic stress ratio (CSR). A critical value of CSR exists for a given LS content (i.e. CSRCR), below which the specimens could remain stable irrespective of the number of load cycles. The longevity of treated specimens is improved significantly, especially for the specimens with LS=2% by weight. As the treated specimens are subjected to a high level of cyclic stress, the excess pore pressure shows a decreasing trend with the increasing number of cycles, but then increases again rapidly when the failure becomes imminent. Compared with the untreated soil, the resilient modulus increases significantly as a result of LS treatment, especially for LS=2%. When the LS > 2%, there is no additional advantage, implying that 2% LS treatment is an optimum for this soil.

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http://hdl.handle.net/10453/154735