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dc.contributor.authorSantacruz-Cruz, María Isabel 
dc.contributor.authorGómez-de-la-Torre, María de los Ángeles 
dc.contributor.authorÁlvarez-Pinazo, Gema
dc.contributor.authorCabeza-Díaz, Aurelio 
dc.contributor.authorCuesta-García, Ana María
dc.contributor.authorSanz, Jesus
dc.contributor.authorGarcía-Aranda, Miguel Ángel 
dc.date.accessioned2017-05-11T11:34:40Z
dc.date.available2017-05-11T11:34:40Z
dc.date.issued2015
dc.identifier.citationAdvances in Cement Research, 2016, 28 (1), 13 – 22es_ES
dc.identifier.issn0951-7197
dc.identifier.urihttp://hdl.handle.net/10630/13623
dc.description.abstractStratlingite, Ca4Al2(OH)12[AlSi(OH)8]2•2H2O, is an AFm phase which appears as hydration product of aluminum-rich cements. These binders may be calcium aluminate cements, calcium sulfoaluminate cements and also Belite Calcium Sulfo-Aluminate (BCSA) cements. The structure of stratlingite is known from single crystal studies of tiny minerals but their bulk formation, crystal structure and microstructure of powders is poorly understood. Here, we report the synthesis of stratlingite and a complete structural and microstructural characterization by synchrotron X-ray powder diffraction, nuclear magnetic resonance, scanning electron microscopy and thermal analyses. The structural and microstructural models have important implications for a correct quantitative phase analysis of stratlingite in cement pastes (for instance, in pastes of BCSA cements). The microstructure of stratlingite formed in cement pastes is highly dependent on the hydration conditions. In BCSA pastes, the (003) line position of stratlingite appears slightly shifted towards higher diffracting angles (lower inter-layered distance) after stopping hydration compared to that of a similar phase present in a paste analyzed without stopping hydration. This is related to dehydration and disorder. This shift and peak broadening is even larger when the paste has suffered partial dehydration during curing (apart from stopping hydration). A microstructural study is reportedes_ES
dc.description.sponsorshipThis work has been supported by Junta de Andalucía through P11-FQM-07517 research project. I. Santacruz thanks a Ramón y Cajal fellowship, RYC-2008-03523. Synchrotron experiments were performed in MSPD beamline at ALBA Synchrotron Light Facility with the collaboration of François Fauth.es_ES
dc.language.isoenges_ES
dc.publisherICE publishinges_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectRietveld, Método dees_ES
dc.subjectCementoes_ES
dc.subject.otherStratlingitees_ES
dc.subject.otherStructurees_ES
dc.subject.otherMicrostructurees_ES
dc.subject.otherSynchrotron X-ray powder diffractiones_ES
dc.subject.otherRietveld refinementes_ES
dc.subject.otherBelite calcium sulfoaluminate cementses_ES
dc.titleStructure of stratlingite and effect of hydration methodology on microstructurees_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroFacultad de Cienciases_ES
dc.rights.ccby-nc-nd


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