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dc.contributor.authorRahhal, V.-
dc.contributor.authorTalero Morales, Rafael-
dc.date.accessioned2010-01-07T11:13:50Z-
dc.date.available2010-01-07T11:13:50Z-
dc.date.issued2008-03-
dc.identifier.citationJournal of Thermal Analysis and Calorimetry 91(3): 825-834 (2008)en_US
dc.identifier.issn1388-6150-
dc.identifier.urihttp://hdl.handle.net/10261/19894-
dc.description.abstractIn this work two aluminic pozzolans (metakaolins) and a non-pozzolan were added to two Portland cements with very different mineral composition, to determine the effect on the rate of heat release and the mechanisms involved. The main analytical techniques deployed were: conduction calorimetry, pozzolanicity and XRD. The results showed that the two metakaolins induced stimulation of the hydration reactions due to the generation of pozzolanic activity at very early stage, because of their reactive alumina, Al2O3r− contents, mainly. Such stimulation was found to be more specific than generic for more intense C3A hydration than C3S, at least at very early on into the reaction, and more so when 7.0% SO3 was added, and for this reason, such stimulation is described as ‘indirect’ to differentiate it from the ‘direct’ variety. As a result of both stimulations, the heat of hydration released is easy to assimilate to a Synergistic Calorific Effect.en_US
dc.description.sponsorshipWe would like to thank the Fundación Rotaria, the Universidad Nacional del Centro de la Provincia de Buenos Aires, for financial support, and the Instituto de C. C. ‘Eduardo Torroja’-CSIC from Spain as well, for having provided the authors with necessary cementing materials and some analytical and experimental techniques.en_US
dc.format.extent677143 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.publisherAkadémiai Kiadó (Budapest)en_US
dc.publisherKluwer Academic Publishersen_US
dc.rightsclosedAccessen_US
dc.subjectCalorimetryen_US
dc.subjectGypsumen_US
dc.subjectMetakaolinen_US
dc.subjectPortland cementen_US
dc.subjectPozzolanicityen_US
dc.subjectQuartzen_US
dc.subjectReactive aluminaen_US
dc.subjectSetting controlen_US
dc.subjectSynergyen_US
dc.subjectXRDen_US
dc.titleCalorimetry of Portland cement with metakaolins, quartz and gypsum additionsen_US
dc.typeartículoen_US
dc.identifier.doi10.1007/s10973-006-8250-6-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1007/s10973-006-8250-6en_US
dc.identifier.e-issn1572-8943-
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
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