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dc.contributor.authorGarcía-Maté, Marta
dc.contributor.authorGomez-de-la-Torre, Maria de los Angeles 
dc.contributor.authorLeón-Reina, Laura
dc.contributor.authorLosilla, Enrique R.
dc.contributor.authorGarcía-Aranda, Miguel Ángel 
dc.contributor.authorSantacruz-Cruz, Maria Isabel 
dc.date.accessioned2017-05-16T12:09:06Z
dc.date.available2017-05-16T12:09:06Z
dc.date.created2014-02
dc.date.issued2014
dc.identifier.urihttp://hdl.handle.net/10630/13656
dc.description.abstractThe availability of cements, including eco-cements, with tailored mechanical properties is very important for special applications in the building industry. Here we report a full study of the hydration of calcium sulfoaluminate eco-cements with different sulfate sources (gypsum, bassanite and anhydrite) and two water/cement ratios (0.50 and 0.65). These parameters have been chosen because they are known to strongly modify the mechanical properties of the resulting mortars and concretes. The applied multitechnique characterization includes: phase assemblage by Rietveld method, evolved heat, conductivity, rheology, compressive strength and expansion/retraction measurements. The dissolution rate of the sulfate sources is key to control the hydration reactions. Bassanite dissolves very fast and hence the initial setting time of the pastes and mortars is too short (20 min) to produce homogeneous samples. Anhydrite dissolves slowly so, at 1 hydration-day, the amount of ettringite formed (20 wt%) is lower than that in gypsum pastes (26 wt%) (w/c = 0.50), producing mortars with lower compressive strengths. After 3 hydration-days, anhydrite pastes showed slightly larger ettringite contents and hence, mortars with slightly higher compressive strengths. Ettringite content is the chief parameter to explain the strength development in these eco-cements.es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Interncaional Andalucía Tech.es_ES
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectCementoes_ES
dc.subject.otherLXRPDes_ES
dc.subject.otherRietveld methodes_ES
dc.subject.otherImpedance spectroscopyes_ES
dc.subject.otherTemperaturees_ES
dc.subject.otherRheologyes_ES
dc.subject.otherMechanical strengthes_ES
dc.titleEffect of calcium sulfate source on the hydration of calcium sulfoaluminate eco-cementes_ES
dc.typeinfo:eu-repo/semantics/preprintes_ES
dc.centroFacultad de Cienciases_ES
dc.cclicenseby-nc-ndes_ES


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