Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilica

The performance of air lime mortars modified by the incorporation of large amounts of nanostructured colloidal silica ¿ nanosilica, NS - (6, 10 and 20 wt.% with respect to lime) was the main objective of this work. Fresh mixture properties (water demand, setting time and plastic shrinkage), mechanic...

Descripción completa

Detalles Bibliográficos
Autores: Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204, Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8, Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54, Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universidad de Navarra
Repositorio:Dadun. Depósito Académico Digital de la Universidad de Navarra
Idioma:inglés
OAI Identifier:oai:dadun.unav.edu:10171/35405
Acceso en línea:https://hdl.handle.net/10171/35405
Access Level:acceso abierto
Palabra clave:Climatic ageing
C–S–H
Filler effect
Lime mortar
Pozzolan
Colloidal silica
id ES_5cc3d2f13f22de4805e1bfa9326bf584
oai_identifier_str oai:dadun.unav.edu:10171/35405
network_acronym_str ES
network_name_str España
repository_id_str
spelling Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilicaAlvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1dClimatic ageingC–S–HFiller effectLime mortarPozzolanColloidal silicaThe performance of air lime mortars modified by the incorporation of large amounts of nanostructured colloidal silica ¿ nanosilica, NS - (6, 10 and 20 wt.% with respect to lime) was the main objective of this work. Fresh mixture properties (water demand, setting time and plastic shrinkage), mechanical strengths up to one year and specimens¿ durability after accelerated ageing conditions (climatic chamber, freeze-thaw cycles and sulfate attack by MgSO4 corrosion test) were evaluated. NS was seen to have a strong pozzolanic activity in air lime media. Although the addition of NS gave rise to an increase in volume contraction, the superficial cracking caused by the drying shrinkage was reduced. A noticeable increase in the compressive strength values was observed in the NS-bearing mortars owing to the NS filler effect and the C-S-H formation, as proved by SEM examination and MIP analysis. A honeycomb-shaped network of C-S-H phases appeared as the prevailing microstructure in mortars with large NS additions. In the face of accelerated ageing processes, the presence of NS made the mortars more durable, delaying the progress of decay.ElsevierDadun. Depósito Académico Digital Universidad de Navarra20142014-03-1020142014-05-1520142014-05-15journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10171/35405reponame:Dadun. Depósito Académico Digital de la Universidad de Navarrainstname:Universidad de NavarraInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dadun.unav.edu:10171/354052026-06-21T12:47:57Z
dc.title.none.fl_str_mv Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilica
title Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilica
spellingShingle Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilica
Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204
Climatic ageing
C–S–H
Filler effect
Lime mortar
Pozzolan
Colloidal silica
title_short Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilica
title_full Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilica
title_fullStr Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilica
title_full_unstemmed Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilica
title_sort Long-term mechanical resistance and durability of air lime mortars with large additions of nanosilica
dc.creator.none.fl_str_mv Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204
Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8
Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54
Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d
author Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204
author_facet Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204
Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8
Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54
Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d
author_role author
author2 Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8
Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54
Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d
author2_role author
author
author
dc.contributor.none.fl_str_mv Dadun. Depósito Académico Digital Universidad de Navarra
dc.subject.none.fl_str_mv Climatic ageing
C–S–H
Filler effect
Lime mortar
Pozzolan
Colloidal silica
topic Climatic ageing
C–S–H
Filler effect
Lime mortar
Pozzolan
Colloidal silica
description The performance of air lime mortars modified by the incorporation of large amounts of nanostructured colloidal silica ¿ nanosilica, NS - (6, 10 and 20 wt.% with respect to lime) was the main objective of this work. Fresh mixture properties (water demand, setting time and plastic shrinkage), mechanical strengths up to one year and specimens¿ durability after accelerated ageing conditions (climatic chamber, freeze-thaw cycles and sulfate attack by MgSO4 corrosion test) were evaluated. NS was seen to have a strong pozzolanic activity in air lime media. Although the addition of NS gave rise to an increase in volume contraction, the superficial cracking caused by the drying shrinkage was reduced. A noticeable increase in the compressive strength values was observed in the NS-bearing mortars owing to the NS filler effect and the C-S-H formation, as proved by SEM examination and MIP analysis. A honeycomb-shaped network of C-S-H phases appeared as the prevailing microstructure in mortars with large NS additions. In the face of accelerated ageing processes, the presence of NS made the mortars more durable, delaying the progress of decay.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-03-10
2014
2014-05-15
2014
2014-05-15
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10171/35405
url https://hdl.handle.net/10171/35405
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Dadun. Depósito Académico Digital de la Universidad de Navarra
instname:Universidad de Navarra
instname_str Universidad de Navarra
reponame_str Dadun. Depósito Académico Digital de la Universidad de Navarra
collection Dadun. Depósito Académico Digital de la Universidad de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869408940568084480
score 15,300719

Similares en LA Referencia