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dc.creatorAlvarez, J.I. (José Ignacio)-
dc.creatorFernandez-Alvarez, J.M. (José María)-
dc.creatorSirera, R. (Rafael)-
dc.creatorPerez-Nicolas, M. (María)-
dc.creatorNavarro-Blasco, I. (Íñigo)-
dc.creatorDuran, A. (Adrián)-
dc.date.accessioned2015-10-22T07:47:51Z-
dc.date.available2015-10-22T07:47:51Z-
dc.date.issued2015-10-13-
dc.identifier.citationDurán A, Navarro-Blasco I, Pérez-Nicolás M, Sirera R, Fernández JM, Álvarez JI. ""Role of different superplasticizers on hydrated lime pastes and mortars"". EN: The 14th International Congress on the Chemistry of Cement. Abstracts Book 2015 Vol II:327. Oral presentationes_ES
dc.identifier.urihttp://hdl.handle.net/10171/39224-
dc.description.abstractThe behaviour of different superplasticizers admixtures was assessed for hydrated lime pastes and mortars. Sometimes, air lime pastes and mortars were modified with two supplementary cementing materials (SCMs), namely nanosilica (NS) and metakaolin (MK). Two different polycarboxylate ethers, a lignosulfonate and a naphthalene condensed sulfonate superplasticizer were added to lime pastes and mortars and their effects on fresh-state properties as well as on the mechanical strengths were evaluated. A close relationship was found between the molecular architecture of the plasticizers and the flowability of the pastes. Zeta potential assessment allowed us to elucidate the main action mechanisms for these admixtures. In the case of polycarboxylate ethers, the large specific surface area of nanosilica led to a large SPs consumption as compared with metakaolin with lower surface area. However, polycarboxylate ethers in MK-lime samples were attached favourably to the C-S-H and aluminate hydrates, so that the dispersing action was greater with respect to NS-lime suspensions.es_ES
dc.language.isoenges_ES
dc.relationThis work was funded by Fundación Universitaria de Navarra under grants FUNA 2010-15108152 and FUNA2013-15108402 and Fundación Caja Navarra under project 31-2014. The authors also gratefully acknowledge Friends of University of Navarra Inc. for a pre-doctoral grant of M. Pérez-
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectMetakaolines_ES
dc.subjectNanosilicaes_ES
dc.subjectZeta potentiales_ES
dc.subjectPozzolanes_ES
dc.subjectAdmixturees_ES
dc.titleRole of different superplasticizers on hydrated lime pastes and mortarses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.editorial.noteThe Chinese Ceramic Society; China Building Materials Academyes_ES

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