dc.contributor.author | Monasterio, M. | |
dc.contributor.author | Gaitero, J.J. | |
dc.contributor.author | Erkizia, E. | |
dc.contributor.author | Guerrero-Bustos, Ana M. | |
dc.contributor.author | Miccio, L.A. | |
dc.contributor.author | Dolado, Jorge S. | |
dc.contributor.author | Cerveny, S. | |
dc.date.accessioned | 2016-04-26T12:17:27Z | |
dc.date.available | 2016-04-26T12:17:27Z | |
dc.date.issued | 2015-07-15 | |
dc.identifier.citation | JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol. 450, (2015), pp. 109-118 | en |
dc.identifier.issn | 0021-9797 | en |
dc.identifier.uri | http://hdl.handle.net/11556/218 | |
dc.description.abstract | In 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.iso | eng | en |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE, 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA | en |
dc.title | Effect of addition of silica- and amine functionalized silica-nanoparticles on the microstructure of calcium silicate hydrate (C-S-H) gel | en |
dc.type | journal article | en |
dc.identifier.doi | 10.1016/j.jcis.2015.02.066 | en |
dc.isi | Yes | en |
dc.rights.accessRights | embargoed access | en |
dc.subject.keywords | Dielectric properties | en |
dc.subject.keywords | Nanoparticles | en |
dc.subject.keywords | Water dynamics | en |
dc.subject.keywords | NMR | en |
dc.subject.keywords | Cement like materials | en |
dc.subject.keywords | C-S-H gel | en |