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dc.contributor.authorCuesta-García, Ana María
dc.contributor.authorLosilla, Enrique R.
dc.contributor.authorGarcía-Aranda, Miguel Ángel 
dc.contributor.authorSanz, Jesús
dc.contributor.authorGómez-de-la-Torre, María de los Ángeles 
dc.date.accessioned2014-09-11T09:25:48Z
dc.date.available2014-09-11T09:25:48Z
dc.date.created2012-01-27
dc.date.issued2012-01-27
dc.identifier.citationCement and Concrete Research 42 (2012) 598–606es_ES
dc.identifier.issn0008-8846
dc.identifier.urihttp://hdl.handle.net/10630/8019
dc.description.abstractBelite-rich cements hold promise for reduced energy consumption and CO2 emissions, but their use is hindered by the slow hydration rates of ordinary belites. This drawback may be overcome by activation of belite by doping. Here, the doping mechanism of B and Na/B in belites is reported. For B-doping, three solid solutions have been tested: Ca2-x/2□x/2(SiO4)1-x(BO3)x, Ca2(SiO4)1-x(BO3)xOx/2 and Ca2-xBx(SiO4)1-x(BO4)x. The experimental results support the substitution of silicate groups by tetrahedral borate groups with the concomitant substitution of calcium by boron for charge compensation, Ca2-xBx(SiO4)1-x(BO4)x. Otherwise, the coupled Na/B-doping of belite has also been investigated and Ca2-xNax(SiO4)1-x(BO3)x series is confirmed to exist for a large range of x values. Along this series, α'H-C2S is the main phase (for x≥0.10) and is single phase for x=0.25. Finally, a new structural description for borax doping in belite has been developed for α'H-Ca1.85Na0.15(SiO4)0.85(BO3)0.15, which fits better borax activated belite cements in Rietveld mineralogical analysises_ES
dc.description.sponsorshipThis work has been supported by Spanish Ministry of Science and Innovation through MAT2010-16213 research grant which is cofunded by FEDER.es_ES
dc.language.isoenges_ES
dc.publisherElselvieres_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectCementoes_ES
dc.subject.otherCrystal Structurees_ES
dc.subject.otherX-Ray Diffractiones_ES
dc.subject.otherCa2SiO4es_ES
dc.subject.otherSolid solutiones_ES
dc.subject.otherActive belite cementses_ES
dc.titleReactive belite stabilization mechanisms by boron-bearing dopantses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroFacultad de Cienciases_ES
dc.type.hasVersioninfo:eu-repo/semantics/submittedVersiones_ES


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