Influence of colloidal nanosilica on ultrafine cement hydration: Physicochemical and microstructural characterization

Kontoleontos, F; Tsakiridis, PE; Marinos, A; Kaloidas, V; Katsioti, M

dc.contributor.author	Kontoleontos, F	en
dc.contributor.author	Tsakiridis, PE	en
dc.contributor.author	Marinos, A	en
dc.contributor.author	Kaloidas, V	en
dc.contributor.author	Katsioti, M	en
dc.date.accessioned	2014-03-01T02:09:20Z
dc.date.available	2014-03-01T02:09:20Z
dc.date.issued	2012	en
dc.identifier.issn	09500618	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29823
dc.subject	Hydration	en
dc.subject	Microstructure	en
dc.subject	Nanosilica	en
dc.subject	Ultrafine cement	en
dc.subject.other	Hardened cement paste	en
dc.subject.other	Hydration products	en
dc.subject.other	Mercury intrusion porosimetry	en
dc.subject.other	Micro-structural characterization	en
dc.subject.other	Microstructure properties	en
dc.subject.other	Morphological characteristic	en
dc.subject.other	Nano-silica	en
dc.subject.other	Physicomechanical	en
dc.subject.other	Porosity and pore size	en
dc.subject.other	Setting time	en
dc.subject.other	Ultrafine cements	en
dc.subject.other	Fourier transform infrared spectroscopy	en
dc.subject.other	Hydration	en
dc.subject.other	Mercury (metal)	en
dc.subject.other	Microstructure	en
dc.subject.other	Scanning electron microscopy	en
dc.subject.other	X ray diffraction analysis	en
dc.subject.other	Cements	en
dc.title	Influence of colloidal nanosilica on ultrafine cement hydration: Physicochemical and microstructural characterization	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.conbuildmat.2012.04.022	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.conbuildmat.2012.04.022	en
heal.publicationDate	2012	en
heal.abstract	The influence of colloidal nanosilica addition on an ultrafine cement have been studied in terms of physicomechanical and microstructure properties. Primarily, experiments were carried out to produce an ultrafine cement (UF) with a Blaine specific surface area greater than 10.500 cm2/g. Nanosilica was added in amounts of 2% and 4% on UF cement basis. All cements were tested for initial and final setting times, consistency of standard paste, flow of normal mortar and compressive strengths after 1, 2, 7 and 28 days. The hydration products were determined by X-ray diffraction analysis and by Fourier transform infrared spectroscopy, at 1, 2, 7 and 28 days. The microstructure of the hardened cement pastes and their morphological characteristics were examined by scanning electron microscopy, whereas porosity and pore size distribution were evaluated by mercury intrusion porosimetry. © 2012 Elsevier Ltd. All rights reserved.	en
heal.journalName	Construction and Building Materials	en
dc.identifier.doi	10.1016/j.conbuildmat.2012.04.022	en
dc.identifier.volume	35	en
dc.identifier.spage	347	en
dc.identifier.epage	360	en