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

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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 http://hdl.handle.net/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

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