Microstructure of fire-damaged concrete. A case study

Georgali, B; Tsakiridis, PE

dc.contributor.author	Georgali, B	en
dc.contributor.author	Tsakiridis, PE	en
dc.date.accessioned	2014-03-01T01:22:45Z
dc.date.available	2014-03-01T01:22:45Z
dc.date.issued	2005	en
dc.identifier.issn	0958-9465	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16644
dc.subject	Concrete	en
dc.subject	Fire-damage	en
dc.subject	Microstructure	en
dc.subject.classification	Construction & Building Technology	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.other	Compressive strength	en
dc.subject.other	Concrete additives	en
dc.subject.other	Concrete construction	en
dc.subject.other	Feedwater heaters	en
dc.subject.other	Fire alarm systems	en
dc.subject.other	Heating	en
dc.subject.other	Hydration	en
dc.subject.other	Optical microscopy	en
dc.subject.other	Crackes	en
dc.subject.other	Fire damage	en
dc.subject.other	Micro voids	en
dc.subject.other	Petrographic	en
dc.subject.other	Microstructure	en
dc.title	Microstructure of fire-damaged concrete. A case study	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.cemconcomp.2004.02.022	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.cemconcomp.2004.02.022	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	Concrete is a poor conductor of heat, but can suffer considerable damage when exposed to fire. Unraveling the heating history of concrete is important to forensic research or to determine whether a fire-exposed concrete structure and its components are still structurally sound. Assessment of fire-damage concrete structures usually starts with visual observation of color change, cracking and spalling. On heating, a change in color from normal to pink is often observed and this is useful since it coincides with the onset of significant loss of concrete strength. This paper presents results of cores strength. as well as, optical microscopy investigations Of fire-damaged concrete. Samples were taken from concrete that had been exposed to fire. Optical microscopy has focused on microstructure of cement paste, aggregates, microvoids and cracks, as well as, on quantification the crack patterns found m heated concrete samples. The physical condition of concrete sample in combination with the microscopic examination, enable a Petrographer to make a reasonable estimation of the minimum exposure temperature and its relative impact to the depth of damage in concrete. (C) 2004 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Cement and Concrete Composites	en
dc.identifier.doi	10.1016/j.cemconcomp.2004.02.022	en
dc.identifier.isi	ISI:000226478000015	en
dc.identifier.volume	27	en
dc.identifier.issue	2	en
dc.identifier.spage	255	en
dc.identifier.epage	259	en