FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–H

The study explored the compatibility between the main product of Portland cement hydration and the main product of the alkali activation of fly ash: C–S–H and N–A–S–H gels, respectively. Both gels were synthesized with laboratory reagents at different pH values. Blends of the two were synthesized as...

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Detalles Bibliográficos
Autores: García-Lodeiro, Inés, Fernández-Jiménez, Ana, Blanco-Varela, María Teresa, Palomo, Ángel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2007
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/19909
Acceso en línea:http://hdl.handle.net/10261/19909
Access Level:acceso abierto
Palabra clave:Gel C–S–H
Gel N–A–S–H
sol–gel
FTIR
pH
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spelling FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–HGarcía-Lodeiro, InésFernández-Jiménez, AnaBlanco-Varela, María TeresaPalomo, ÁngelGel C–S–HGel N–A–S–Hsol–gelFTIRpHThe study explored the compatibility between the main product of Portland cement hydration and the main product of the alkali activation of fly ash: C–S–H and N–A–S–H gels, respectively. Both gels were synthesized with laboratory reagents at different pH values. Blends of the two were synthesized as well, using the sol–gel procedure. All the gels were characterized with Fourier transform IR spectroscopy (FTIR). The gels synthesized with this procedure were shown to precipitate together with a silica-rich gel. In addition, the pH level was found to play a determinant role in both C–S–H and N–A–S–H gel synthesis. The C–S–H gel is the major phase formed at pH > 11 and N–A–S–H gel for pH > 12. The results relating to the joint synthesis of the two (C–S–H and N–A–S–H) gels were not conclusive. Technique used for the characterization failed to differentiate between them in the blended material.This study was funded by the Directorate General of Scientific Research under project MAT2006//705 and also benefited from an I3P contract (ref. I3P-PC2004L) co-financed by the CSIC and the European Social Fund.Peer reviewedSpringer NatureConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201020102007info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdf98816 bytesapplication/vnd.ms-excelhttp://hdl.handle.net/10261/19909reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s10971-007-1643-6Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/199092026-05-22T06:33:51Z
dc.title.none.fl_str_mv FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–H
title FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–H
spellingShingle FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–H
García-Lodeiro, Inés
Gel C–S–H
Gel N–A–S–H
sol–gel
FTIR
pH
title_short FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–H
title_full FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–H
title_fullStr FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–H
title_full_unstemmed FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–H
title_sort FTIR study of the sol–gel synthesis of cementitious gels: C–S–H and N–A–S–H
dc.creator.none.fl_str_mv García-Lodeiro, Inés
Fernández-Jiménez, Ana
Blanco-Varela, María Teresa
Palomo, Ángel
author García-Lodeiro, Inés
author_facet García-Lodeiro, Inés
Fernández-Jiménez, Ana
Blanco-Varela, María Teresa
Palomo, Ángel
author_role author
author2 Fernández-Jiménez, Ana
Blanco-Varela, María Teresa
Palomo, Ángel
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Gel C–S–H
Gel N–A–S–H
sol–gel
FTIR
pH
topic Gel C–S–H
Gel N–A–S–H
sol–gel
FTIR
pH
description The study explored the compatibility between the main product of Portland cement hydration and the main product of the alkali activation of fly ash: C–S–H and N–A–S–H gels, respectively. Both gels were synthesized with laboratory reagents at different pH values. Blends of the two were synthesized as well, using the sol–gel procedure. All the gels were characterized with Fourier transform IR spectroscopy (FTIR). The gels synthesized with this procedure were shown to precipitate together with a silica-rich gel. In addition, the pH level was found to play a determinant role in both C–S–H and N–A–S–H gel synthesis. The C–S–H gel is the major phase formed at pH > 11 and N–A–S–H gel for pH > 12. The results relating to the joint synthesis of the two (C–S–H and N–A–S–H) gels were not conclusive. Technique used for the characterization failed to differentiate between them in the blended material.
publishDate 2007
dc.date.none.fl_str_mv 2007
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/19909
url http://hdl.handle.net/10261/19909
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s10971-007-1643-6
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
98816 bytes
application/vnd.ms-excel
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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