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dc.contributor.authorMonasterio, M.
dc.contributor.authorGaitero, J.J.
dc.contributor.authorErkizia, E.
dc.contributor.authorGuerrero-Bustos, Ana M.
dc.contributor.authorMiccio, L.A.
dc.contributor.authorDolado, Jorge S.
dc.contributor.authorCerveny, S.
dc.date.accessioned2016-04-26T12:17:27Z
dc.date.available2016-04-26T12:17:27Z
dc.date.issued2015-07-15
dc.identifier.citationJOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol. 450, (2015), pp. 109-118en
dc.identifier.issn0021-9797en
dc.identifier.urihttp://hdl.handle.net/11556/218
dc.description.abstractIn this work we study the influence of adding nano-silica (SiO2, Nyasil (TM)) and aminopropyl (-(CH2)(3)-NH2,) functionalized silica nanoparticles (Stoga) during the synthesis of calcium-silicate-hydrate (C-S-H gel). Characterization by solid state Si-29 NMR and ATR-FDR spectroscopy showed that the addition of both particle types increases the average length of the silicate chains in C-S-H gel being this effect slightly more important in the case of Stoga particles. In addition, C-13 NMR and XPS confirmed that the aminopropyl chain remains in the final product cleaved to silicon atoms at the end of the silicate chain of C-S-H gel whereas XRD measurements showed that this result in an increment in the basal distance compared with ordinary CSH. In addition, the dynamics of water within the pores of C-S-H gel was analyzed by broadband dielectric spectroscopy. We observed that water confined in C-S-H formed with the addition of nanoparticles is faster than that in plain C-S-H which can be related to a different porous structure in these materials.en
dc.language.isoengen
dc.publisherACADEMIC PRESS INC ELSEVIER SCIENCE, 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USAen
dc.titleEffect of addition of silica- and amine functionalized silica-nanoparticles on the microstructure of calcium silicate hydrate (C-S-H) gelen
dc.typearticleen
dc.identifier.doi10.1016/j.jcis.2015.02.066en
dc.isiYesen
dc.rights.accessRightsembargoedAccessen
dc.subject.keywordsDielectric propertiesen
dc.subject.keywordsNanoparticlesen
dc.subject.keywordsWater dynamicsen
dc.subject.keywordsNMRen
dc.subject.keywordsCement like materialsen
dc.subject.keywordsC-S-H gelen


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