Potential use of lignosulfonate for expansive soil stabilisation

Alazigha, DP; Vinod, JS; Indraratna, B; Heitor, A

Potential use of lignosulfonate for expansive soil stabilisation

Alazigha, DP Vinod, JS Indraratna, B

Heitor, A

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Publisher:: Thomas Telford Ltd.
Publication Type:: Journal Article
Citation:: Environmental Geotechnics, 2019, 6, (7), pp. 480-488
Issue Date:: 2019-10-18

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Field	Value	Language
dc.contributor.author	Alazigha, DP
dc.contributor.author	Vinod, JS
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.contributor.author	Heitor, A
dc.date.accessioned	2022-08-15T03:55:00Z
dc.date.available	2022-08-15T03:55:00Z
dc.date.issued	2019-10-18
dc.identifier.citation	Environmental Geotechnics, 2019, 6, (7), pp. 480-488
dc.identifier.issn	2051-803X
dc.identifier.issn	2051-803X
dc.identifier.uri	http://hdl.handle.net/10453/160195
dc.description.abstract	This study involved the laboratory evaluation of the effectiveness of lignosulfonate (LS) admixture in improving engineering properties (i.e. swell potential, unconfined compressive strength, durability, compaction characteristics, permeability, consolidation characteristics and shrinkage behaviour) of a remoulded expansive soil. Standard geotechnical laboratory tests performed on untreated and LS-treated soil specimens compacted at optimum moisture content and maximum dry unit weight showed significant and consistent improvements in the engineering properties of the soil. The swell potential of the soil decreased by 23% while maintaining its ductility and pH value. The improved soil resistance to repeated freeze-thaw/wet-dry cycles was also observed in the LS-treated specimens. Likewise, the compressive strength, consolidation characteristics and shrinkage limit improved appreciably. However, the compaction characteristics and permeability of the treated soil remained relatively unchanged. With over 50 Mt of global annual production of LS, the successful use of LS as an alternative admixture for expansive soil stabilisation provides viable solutions to the sustainable use of the lignin by-products from paper manufacturing industry.
dc.language	en
dc.publisher	Thomas Telford Ltd.
dc.relation.ispartof	Environmental Geotechnics
dc.relation.isbasedon	10.1680/jenge.17.00051
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.title	Potential use of lignosulfonate for expansive soil stabilisation
dc.type	Journal Article
utslib.citation.volume	6
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental 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	2022-08-15T03:54:00Z
pubs.issue	7
pubs.publication-status	Published
pubs.volume	6
utslib.citation.issue	7

Abstract:

This study involved the laboratory evaluation of the effectiveness of lignosulfonate (LS) admixture in improving engineering properties (i.e. swell potential, unconfined compressive strength, durability, compaction characteristics, permeability, consolidation characteristics and shrinkage behaviour) of a remoulded expansive soil. Standard geotechnical laboratory tests performed on untreated and LS-treated soil specimens compacted at optimum moisture content and maximum dry unit weight showed significant and consistent improvements in the engineering properties of the soil. The swell potential of the soil decreased by 23% while maintaining its ductility and pH value. The improved soil resistance to repeated freeze-thaw/wet-dry cycles was also observed in the LS-treated specimens. Likewise, the compressive strength, consolidation characteristics and shrinkage limit improved appreciably. However, the compaction characteristics and permeability of the treated soil remained relatively unchanged. With over 50 Mt of global annual production of LS, the successful use of LS as an alternative admixture for expansive soil stabilisation provides viable solutions to the sustainable use of the lignin by-products from paper manufacturing industry.

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http://hdl.handle.net/10453/160195