The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars

Perez-Nicolas, M. (María)|||/items/8615ce55-1234-42ac-991a-a320ec2ab7df; Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d; Sirera-Bejarano, R. (Rafael)|||/items/dd5ea901-439c-4cbe-9798-b1ad5efb610d; Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54; Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8; Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204

The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars

A superplasticizing admixture of natural origin, lignosulfonate (LS), was incorporated to air lime mortars sometimes modified with a pozzolanic additive, metakaolin, to obtain a new range of repair mortars to be applied in Built Heritage. LS improved the flowability of the air lime samples and showe...

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Detalhes bibliográficos
Autores:	Perez-Nicolas, M. (María)\|\|\|/items/8615ce55-1234-42ac-991a-a320ec2ab7df, Duran-Benito, A. (Adrian)\|\|\|/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d, Sirera-Bejarano, R. (Rafael)\|\|\|/items/dd5ea901-439c-4cbe-9798-b1ad5efb610d, Navarro-Blasco, I. (Iñigo)\|\|\|/items/733b109b-1074-49e9-8952-70ec6928cc54, Fernandez-Alvarez, J.M. (José María)\|\|\|/items/1dea5bde-978e-46db-8871-8d426cbb52c8, Alvarez-Galindo, J.I. (José Ignacio)\|\|\|/items/c88ef755-513c-4ff3-bbff-44aadbf32204
Formato:	capítulo de livro
Fecha de publicación:	2016
País:	España
Recursos:	Universidad de Navarra
Repositorio:	Dadun. Depósito Académico Digital de la Universidad de Navarra
Idioma:	inglés
OAI Identifier:	oai:dadun.unav.edu:10171/43006
Acesso em linha:	https://hdl.handle.net/10171/43006
Access Level:	acceso abierto
Palavra-chave:	Materias Investigacion::Química Mortars Superplasticizers

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spelling	The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortarsPerez-Nicolas, M. (María)\|\|\|/items/8615ce55-1234-42ac-991a-a320ec2ab7dfDuran-Benito, A. (Adrian)\|\|\|/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1dSirera-Bejarano, R. (Rafael)\|\|\|/items/dd5ea901-439c-4cbe-9798-b1ad5efb610dNavarro-Blasco, I. (Iñigo)\|\|\|/items/733b109b-1074-49e9-8952-70ec6928cc54Fernandez-Alvarez, J.M. (José María)\|\|\|/items/1dea5bde-978e-46db-8871-8d426cbb52c8Alvarez-Galindo, J.I. (José Ignacio)\|\|\|/items/c88ef755-513c-4ff3-bbff-44aadbf32204Materias Investigacion::QuímicaMortarsSuperplasticizersA superplasticizing admixture of natural origin, lignosulfonate (LS), was incorporated to air lime mortars sometimes modified with a pozzolanic additive, metakaolin, to obtain a new range of repair mortars to be applied in Built Heritage. LS improved the flowability of the air lime samples and showed good slump retention over time: for example, after 150 minutes of the air lime pastes preparation, blends with LS lost only ca. 13% of the slump value. Experimental results showed that LS interfered with the carbonation due to its ability to form Ca2+ complexes. Adsorption isotherms and zeta potential measurements showed that LS was scarcely adsorbed onto lime and C-S-H particles. Due to its branchy structure, LS exhibited an adsorption mechanism leading to steric hindrance as the main responsible mechanism for avoiding flocculation. The presence of free LS molecules in the dispersion was seen to improve the plasticizing effect of this polymer. Flexural and compressive strengths as well as the durability in the face of freezing-thawing cycles of these mortars were also determined to assess the applicability of these repair mortars.Aristotle University of ThessalonikiDadun. Depósito Académico Digital Universidad de Navarra20172017-02-1720162016-01-0120162016-01-01book parthttp://purl.org/coar/resource_type/c_3248info:eu-repo/semantics/bookPartapplication/pdfhttps://hdl.handle.net/10171/43006reponame: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:10171/430062026-06-21T12:47:57Z
dc.title.none.fl_str_mv	The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars
title	The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars
spellingShingle	The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars Perez-Nicolas, M. (María)\|\|\|/items/8615ce55-1234-42ac-991a-a320ec2ab7df Materias Investigacion::Química Mortars Superplasticizers
title_short	The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars
title_full	The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars
title_fullStr	The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars
title_full_unstemmed	The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars
title_sort	The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars
dc.creator.none.fl_str_mv	Perez-Nicolas, M. (María)\|\|\|/items/8615ce55-1234-42ac-991a-a320ec2ab7df Duran-Benito, A. (Adrian)\|\|\|/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d Sirera-Bejarano, R. (Rafael)\|\|\|/items/dd5ea901-439c-4cbe-9798-b1ad5efb610d Navarro-Blasco, I. (Iñigo)\|\|\|/items/733b109b-1074-49e9-8952-70ec6928cc54 Fernandez-Alvarez, J.M. (José María)\|\|\|/items/1dea5bde-978e-46db-8871-8d426cbb52c8 Alvarez-Galindo, J.I. (José Ignacio)\|\|\|/items/c88ef755-513c-4ff3-bbff-44aadbf32204
author	Perez-Nicolas, M. (María)\|\|\|/items/8615ce55-1234-42ac-991a-a320ec2ab7df
author_facet	Perez-Nicolas, M. (María)\|\|\|/items/8615ce55-1234-42ac-991a-a320ec2ab7df Duran-Benito, A. (Adrian)\|\|\|/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d Sirera-Bejarano, R. (Rafael)\|\|\|/items/dd5ea901-439c-4cbe-9798-b1ad5efb610d Navarro-Blasco, I. (Iñigo)\|\|\|/items/733b109b-1074-49e9-8952-70ec6928cc54 Fernandez-Alvarez, J.M. (José María)\|\|\|/items/1dea5bde-978e-46db-8871-8d426cbb52c8 Alvarez-Galindo, J.I. (José Ignacio)\|\|\|/items/c88ef755-513c-4ff3-bbff-44aadbf32204
author_role	author
author2	Duran-Benito, A. (Adrian)\|\|\|/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d Sirera-Bejarano, R. (Rafael)\|\|\|/items/dd5ea901-439c-4cbe-9798-b1ad5efb610d Navarro-Blasco, I. (Iñigo)\|\|\|/items/733b109b-1074-49e9-8952-70ec6928cc54 Fernandez-Alvarez, J.M. (José María)\|\|\|/items/1dea5bde-978e-46db-8871-8d426cbb52c8 Alvarez-Galindo, J.I. (José Ignacio)\|\|\|/items/c88ef755-513c-4ff3-bbff-44aadbf32204
author2_role	author author author author author
dc.contributor.none.fl_str_mv	Dadun. Depósito Académico Digital Universidad de Navarra
dc.subject.none.fl_str_mv	Materias Investigacion::Química Mortars Superplasticizers
topic	Materias Investigacion::Química Mortars Superplasticizers
description	A superplasticizing admixture of natural origin, lignosulfonate (LS), was incorporated to air lime mortars sometimes modified with a pozzolanic additive, metakaolin, to obtain a new range of repair mortars to be applied in Built Heritage. LS improved the flowability of the air lime samples and showed good slump retention over time: for example, after 150 minutes of the air lime pastes preparation, blends with LS lost only ca. 13% of the slump value. Experimental results showed that LS interfered with the carbonation due to its ability to form Ca2+ complexes. Adsorption isotherms and zeta potential measurements showed that LS was scarcely adsorbed onto lime and C-S-H particles. Due to its branchy structure, LS exhibited an adsorption mechanism leading to steric hindrance as the main responsible mechanism for avoiding flocculation. The presence of free LS molecules in the dispersion was seen to improve the plasticizing effect of this polymer. Flexural and compressive strengths as well as the durability in the face of freezing-thawing cycles of these mortars were also determined to assess the applicability of these repair mortars.
publishDate	2016
dc.date.none.fl_str_mv	2016 2016-01-01 2016 2016-01-01 2017 2017-02-17
dc.type.none.fl_str_mv	book part http://purl.org/coar/resource_type/c_3248
dc.type.openaire.fl_str_mv	info:eu-repo/semantics/bookPart
format	bookPart
dc.identifier.none.fl_str_mv	https://hdl.handle.net/10171/43006
url	https://hdl.handle.net/10171/43006
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	Aristotle University of Thessaloniki
publisher.none.fl_str_mv	Aristotle University of Thessaloniki
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
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The use of a lignosulfonate superplasticizer in repair air lime-metakaolin mortars

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