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dc.contributor.authorSutton, David
dc.contributor.authorMcCabe, Bryan A.
dc.contributor.authorO'Connell, Aidan
dc.contributor.authorCripps, John C.
dc.date.accessioned2017-02-24T15:22:11Z
dc.date.available2017-02-24T15:22:11Z
dc.date.issued2012-11-07
dc.identifier.citationSutton, David, McCabe, Bryan, O'Connell, Aidan, & Cripps, John. (2013). A laboratory study of the expansion of an Irish pyritic mudstone/siltstone fill material. Engineering Geology, 152(1), 194-201. doi: http://dx.doi.org/10.1016/j.enggeo.2012.10.011en_IE
dc.identifier.issn1872-6917
dc.identifier.urihttp://hdl.handle.net/10379/6364
dc.description.abstractExtensive damage to dwellings in the east of Ireland, arising from the expansive pyritic fill material used beneath the floor slabs, prompted the laboratory study presented in this paper to quantify the expansion and study its influencing factors. A novel experimental arrangement, in which sample height and water supply were varied, was used to test a large quantity of active pyritic infill taken from an affected house in the greater Dublin area. The expansion of ten separate fill specimens was measured over a 175 day period from December 2010 to May 2011. Remarkably consistent results were obtained when the expansions were normalised by the sample height, with expansion rates of approximately 2–3 mm/year/m height of fill for specimens standing in water, where the rates were largely insensitive to the amount of water supplied. More rapid expansion was noted for one specimen to which no additional water was supplied during the test. A steady reduction in pH of the water, although relatively small, was consistent with pyrite oxidation reactions occurring in the samples during the test, and also implies the occurrence of leaching of ions from the pores in the mudstone and also that oxidation reactions may have been occurring in the saturated mudstone. Changes in expansion were found also to correlate strongly with changes in the ambient temperature in all specimens.en_IE
dc.formatapplication/pdfen_IE
dc.language.isoenen_IE
dc.publisherElsevieren_IE
dc.relation.ispartofEngineering Geologyen
dc.subjectPyriteen_IE
dc.subjectMudstoneen_IE
dc.subjectNormalised expansionen_IE
dc.subjectpHen_IE
dc.subjectTemperatureen_IE
dc.subjectWateren_IE
dc.subjectCivil engineeringen_IE
dc.titleA laboratory study of the expansion of an Irish pyritic mudstone/siltstone fill materialen_IE
dc.typeArticleen_IE
dc.date.updated2017-02-15T13:46:14Z
dc.identifier.doi10.1016/j.enggeo.2012.10.011
dc.local.publishedsourcehttp://dx.doi.org/10.1016/j.enggeo.2012.10.011en_IE
dc.description.peer-reviewedpeer-reviewed
dc.contributor.funder|~|
dc.internal.rssid2269141
dc.local.contactBryan Mccabe, Dept. Of Civil Engineering, Coll Engineering & Informatics, Room Eng-1040, Nui Galway. 2021 Email: bryan.mccabe@nuigalway.ie
dc.local.copyrightcheckedNo
dc.local.versionACCEPTED
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