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dc.contributor.authorRheinheimer, Vanessa
dc.contributor.authorCasanova Hormaechea, Ignasi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria de la Construcció
dc.date.accessioned2014-04-28T14:53:46Z
dc.date.created2014-06
dc.date.issued2014-06
dc.identifier.citationRheinheimer, V.; Casanova, I. An X-ray photoelectron spectroscopy study of the hydration of C2S thin films. "Cement and concrete research", Juny 2014, vol. 60, p. 83-90.
dc.identifier.issn0008-8846
dc.identifier.urihttp://hdl.handle.net/2117/22734
dc.description.abstractElectron-beam evaporation was used to produce thin films of ß-dicalcium silicate. Chemical and mineralogical compositions were characterized by X-ray photoelectron spectroscopy (XPS) and grazing-angle X-ray diffraction (GAXRD), respectively. Results showthat no fractionation occurs during evaporation and isostructural condensation of the material as synthesized films have the same composition as the initial bulk material. Samples were gradually hydrated under saturatedwater spray conditions and analyzed with XPS. Polymerization of the silicate chains due to hydration, and subsequent formation of C-S-H, has been monitored through evaluation of energy shifts on characteristic silicon peaks. Quantitative analyses show changes on the surface by the reduction of the Ca/Si ratio and an increase on the difference between binding energies of bridging and non-bridging oxygen. Finally, SEM/FIB observation shows clear differences between the surface and cross section of the initial sample and the reacted sample.
dc.format.extent8 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
dc.subject.lcshHydration
dc.subject.lcshCement
dc.subject.otherß-Dicalcium silicate
dc.subject.otherC-S-H
dc.subject.otherThin films
dc.subject.otherHydration
dc.subject.otherX-ray photoelectron spectroscopy
dc.titleAn X-ray photoelectron spectroscopy study of the hydration of C2S thin films
dc.typeArticle
dc.subject.lemacCiment
dc.subject.lemacHidratació
dc.contributor.groupUniversitat Politècnica de Catalunya. MECMAT - Mecànica de Materials
dc.identifier.doi10.1016/j.cemconres.2014.03.005
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0008884614000672
dc.rights.accessRestricted access - publisher's policy
drac.iddocument14149049
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
upcommons.citation.authorRheinheimer, V.; Casanova, I.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameCement and concrete research
upcommons.citation.volume60
upcommons.citation.startingPage83
upcommons.citation.endingPage90


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