Experimental study on the durability of soil-cement columns in coastal areas

Van Ngoc, P; Turner, B; Huang, J; Kelly, R

Experimental study on the durability of soil-cement columns in coastal areas

Van Ngoc, P Turner, B

Huang, J Kelly, R

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Publisher:: South Asian Geotechnical Society
Publication Type:: Journal Article
Citation:: Geotechnical Engineering, 2017, 48, (4), pp. 138-143
Issue Date:: 2017-12-01

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Field	Value	Language
dc.contributor.author	Van Ngoc, P
dc.contributor.author	Turner, B https://orcid.org/0000-0002-8894-9610
dc.contributor.author	Huang, J
dc.contributor.author	Kelly, R
dc.date.accessioned	2022-09-08T01:33:08Z
dc.date.available	2022-09-08T01:33:08Z
dc.date.issued	2017-12-01
dc.identifier.citation	Geotechnical Engineering, 2017, 48, (4), pp. 138-143
dc.identifier.issn	0046-5828
dc.identifier.issn	0046-5828
dc.identifier.uri	http://hdl.handle.net/10453/161509
dc.description.abstract	Deep soil mixing is one of the most commonly used ground improvement techniques. With high sulphate content in soil and seawater, stabilised soil in coastal areas can deteriorate due to sulphate attack. In this research, the degradation in strength of cement treated soil exposed to synthetic seawater is measured by uniaxial compression and needle penetration testing. Three exposure conditions, namely 100% seawater, 200% seawater and sealed condition (control samples), were used to measure the deterioration level due to the effect of sulphate. In addition, the extent of the portlandite consumption was also measured by Thermogravimetric Analysis which reflects the calcium distribution in the soil-cement columns. The test results show that the deterioration occurs deeper and faster in higher seawater environments. Furthermore, in contact with increasing sulphate concentration, the deterioration shows a close relation with calcium distribution.
dc.language	en
dc.publisher	South Asian Geotechnical Society
dc.relation.ispartof	Geotechnical Engineering
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Experimental study on the durability of soil-cement columns in coastal areas
dc.type	Journal Article
utslib.citation.volume	48
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	*
pubs.consider-herdc	false
dc.date.updated	2022-09-08T01:33:06Z
pubs.issue	4
pubs.publication-status	Published
pubs.volume	48
utslib.citation.issue	4

Abstract:

Deep soil mixing is one of the most commonly used ground improvement techniques. With high sulphate content in soil and seawater, stabilised soil in coastal areas can deteriorate due to sulphate attack. In this research, the degradation in strength of cement treated soil exposed to synthetic seawater is measured by uniaxial compression and needle penetration testing. Three exposure conditions, namely 100% seawater, 200% seawater and sealed condition (control samples), were used to measure the deterioration level due to the effect of sulphate. In addition, the extent of the portlandite consumption was also measured by Thermogravimetric Analysis which reflects the calcium distribution in the soil-cement columns. The test results show that the deterioration occurs deeper and faster in higher seawater environments. Furthermore, in contact with increasing sulphate concentration, the deterioration shows a close relation with calcium distribution.

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http://hdl.handle.net/10453/161509