A spectroscopic investigation of the weathering of a heritage Sydney sandstone

Ip, KH; Stuart, BH; Ray, AS; Thomas, PS

A spectroscopic investigation of the weathering of a heritage Sydney sandstone

Ip, KH Stuart, BH

Ray, AS Thomas, PS

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Publication Type:: Journal Article
Citation:: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2008, 71 (3), pp. 1032 - 1035
Issue Date:: 2008-12-01

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Field	Value	Language
dc.contributor.author	Ip, KH	en_US
dc.contributor.author	Stuart, BH https://orcid.org/0000-0001-9540-4435	en_US
dc.contributor.author	Ray, AS	en_US
dc.contributor.author	Thomas, PS https://orcid.org/0000-0001-6962-2121	en_US
dc.date.available	2008-02-28	en_US
dc.date.issued	2008-12-01	en_US
dc.identifier.citation	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2008, 71 (3), pp. 1032 - 1035	en_US
dc.identifier.issn	1386-1425	en_US
dc.identifier.uri	http://hdl.handle.net/10453/8431
dc.description.abstract	Infrared spectroscopy has been employed in a study of the degradation of heritage Sydney sandstone used in St. Mary's Cathedral in Sydney, Australia. Spectra were used to characterise the clay components taken from weathered and unweathered sandstone blocks removed from the Cathedral as part of a restoration programme. Two types of kaolin clays - kaolinite and its polymorph, dickite - have been identified. A higher amount of dickite present in the clay of weathered sandstone indicated that a kaolinite-to-dickite transformation occurs upon weathering. X-ray photoelectron spectroscopy was also used to confirm the presence of a more thermally stable polymorph of the kaolinite in the sandstone. © 2008 Elsevier B.V. All rights reserved.	en_US
dc.relation.ispartof	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy	en_US
dc.relation.isbasedon	10.1016/j.saa.2008.02.042	en_US
dc.subject.classification	Chemical Physics	en_US
dc.subject.mesh	Aluminum Silicates	en_US
dc.subject.mesh	Kaolin	en_US
dc.subject.mesh	Minerals	en_US
dc.subject.mesh	Silicon Dioxide	en_US
dc.subject.mesh	Quartz	en_US
dc.subject.mesh	Potassium Compounds	en_US
dc.subject.mesh	Spectroscopy, Fourier Transform Infrared	en_US
dc.subject.mesh	Spectrum Analysis	en_US
dc.subject.mesh	Weather	en_US
dc.subject.mesh	Oxidation-Reduction	en_US
dc.subject.mesh	Color	en_US
dc.subject.mesh	X-Rays	en_US
dc.subject.mesh	Construction Materials	en_US
dc.subject.mesh	New South Wales	en_US
dc.subject.mesh	Clay	en_US
dc.title	A spectroscopic investigation of the weathering of a heritage Sydney sandstone	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	71	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
dc.location.activity	ISI:000261118400050	en_US
pubs.embargo.period	Not known	en_US
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
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
pubs.organisational-group	/University of Technology Sydney/Strength - CFS - Centre for Forensic Science
utslib.copyright.status	open_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	71	en_US

Abstract:

Infrared spectroscopy has been employed in a study of the degradation of heritage Sydney sandstone used in St. Mary's Cathedral in Sydney, Australia. Spectra were used to characterise the clay components taken from weathered and unweathered sandstone blocks removed from the Cathedral as part of a restoration programme. Two types of kaolin clays - kaolinite and its polymorph, dickite - have been identified. A higher amount of dickite present in the clay of weathered sandstone indicated that a kaolinite-to-dickite transformation occurs upon weathering. X-ray photoelectron spectroscopy was also used to confirm the presence of a more thermally stable polymorph of the kaolinite in the sandstone. © 2008 Elsevier B.V. All rights reserved.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/8431