Characterisation of weathering of Sydney sandstones in heritage building

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Show simple item record Ip, Kin Hong en_US Stuart, Barbara en_US Ray, Abhi en_US 2009-08-20T13:02:31Z 2009-08-20T13:02:31Z 2003 en_US
dc.identifier 2003000547 en_US
dc.identifier.citation Ip Kin Hong, Stuart Barbara, and Ray Abhi 2003, 'Characterisation of weathering of Sydney sandstones in heritage building', Elsevier, vol. 4, no. 1, pp. 211-220. en_US
dc.identifier.issn 1296-2074 en_US
dc.identifier.other C1 en_US
dc.description.abstract "Yellow block" sandstone, a colloquial expression used for a locally quarried variety of sandstone, has made an important contribution to the cultural and architectural heritage of Australia's largest city, Sydney. The golden colour of this dimension stone adds to the attractive appearance of a number of significant landmarks of Sydney. After almost a century of exposure, the progressive decay of the natural consolidant, which is predominantly clay, is causing deterioration of many of these sandstone buildings. While in some cases partial and total replacements have been successful in the restoration work, a proper understanding of the cause of decay of the natural consolidant is necessary if a suitable consolidant is to be developed to preserve the original blocks. This paper reports the findings of a study of the weathering behaviour of the clay matrix in "yellow block" sandstones used in some of Sydney's historic buildings. Sandstone samples were investigated by the techniques of FTIR spectroscopy, X-ray diffraction, scanning electron microscopy, inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and thermal analysis. The analytical results support the theory that the changes to the original kaolinite clay structure upon prolonged exposure and weathering of the sandstone blocks investigated are at least partly due to the substitution by Fe3+, for Al3+ in the octahedral sheet. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved. en_US
dc.publisher Elsevier en_US
dc.relation.isbasedon en_US
dc.title Characterisation of weathering of Sydney sandstones in heritage building en_US
dc.parent JOurnal of Cultural Heritage en_US
dc.journal.volume 4 en_US
dc.journal.number 1 en_US
dc.publocation Paris, France en_US
dc.identifier.startpage 211 en_US
dc.identifier.endpage 220 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 210100 en_US
dc.personcode 97049136 en_US
dc.personcode 950589 en_US
dc.personcode 860311 en_US
dc.percentage 100 en_US Archaeology en_US
dc.classification.type FOR-08 en_US
dc.description.keywords sandstone; weathering; kaolinite; FTIR spectroscopy; X-ray diffraction; scanning electron microscopy; ICP-AES; thermal analysis en_US
dc.staffid 860311 en_US

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