Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite clays

The influence of polymeric structure of polycarboxylate-ether (PCE) based superplasticizers on the intercalation behavior in sodium montmorillonite clay (Na-MNT) is investigated by performing in-situ X-ray diffraction (XRPD) on fresh, unaltered clay pastes. The use of this technique reveals the real...

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Detalles Bibliográficos
Autores: Borralleras, Pere, Segura Pérez, Ignacio|||0000-0001-6519-9899, Garcia Aranda, Miguel Angel, Aguado de Cea, Antonio|||0000-0001-5542-6365
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/168107
Acceso en línea:https://hdl.handle.net/2117/168107
https://dx.doi.org/10.1016/j.conbuildmat.2019.06.014
Access Level:acceso abierto
Palabra clave:Concrete -- Additives
XRD (C)
Polycarboxylate (E)
Clay (C)
d-spacing (E)
Synchrotron radiation (C)
Intercalation (D)
Exfoliation (C)
Formigó -- Additius
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
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oai_identifier_str oai:upcommons.upc.edu:2117/168107
network_acronym_str ES
network_name_str España
repository_id_str
spelling Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite claysBorralleras, PereSegura Pérez, Ignacio|||0000-0001-6519-9899Garcia Aranda, Miguel AngelAguado de Cea, Antonio|||0000-0001-5542-6365Concrete -- AdditivesXRD (C)Polycarboxylate (E)Clay (C)d-spacing (E)Synchrotron radiation (C)Intercalation (D)Exfoliation (C)Formigó -- AdditiusÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigóThe influence of polymeric structure of polycarboxylate-ether (PCE) based superplasticizers on the intercalation behavior in sodium montmorillonite clay (Na-MNT) is investigated by performing in-situ X-ray diffraction (XRPD) on fresh, unaltered clay pastes. The use of this technique reveals the real influence of the PCE structure and of the PCE/clay dosage ratio on the expansion profile of the clay. This is not observed with the traditional XRPD methodology performed on dried clay pastes, which shows the same values of d-spacing despite using polymers of diverse structures. It is observed that PCE polymers with long side chains and high side chain density result in larger expansion. Additionally, polymers with a high anionic charge saturate the interlaminar space of montmorillonite at a lower dosage. The experimental results also indicate that clay exfoliation is critical in the intercalation process and the exfoliation tendency of the clay is influenced by the structure of PCE polymers.Peer ReviewedElsevier20192019-09-0120192019-09-10journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/168107https://dx.doi.org/10.1016/j.conbuildmat.2019.06.014reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1681072026-05-27T15:37:01Z
dc.title.none.fl_str_mv Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite clays
title Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite clays
spellingShingle Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite clays
Borralleras, Pere
Concrete -- Additives
XRD (C)
Polycarboxylate (E)
Clay (C)
d-spacing (E)
Synchrotron radiation (C)
Intercalation (D)
Exfoliation (C)
Formigó -- Additius
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
title_short Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite clays
title_full Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite clays
title_fullStr Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite clays
title_full_unstemmed Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite clays
title_sort Influence of the polymer structure of polycarboxylate-based superplasticizers on the intercalation behaviour in montmorillonite clays
dc.creator.none.fl_str_mv Borralleras, Pere
Segura Pérez, Ignacio|||0000-0001-6519-9899
Garcia Aranda, Miguel Angel
Aguado de Cea, Antonio|||0000-0001-5542-6365
author Borralleras, Pere
author_facet Borralleras, Pere
Segura Pérez, Ignacio|||0000-0001-6519-9899
Garcia Aranda, Miguel Angel
Aguado de Cea, Antonio|||0000-0001-5542-6365
author_role author
author2 Segura Pérez, Ignacio|||0000-0001-6519-9899
Garcia Aranda, Miguel Angel
Aguado de Cea, Antonio|||0000-0001-5542-6365
author2_role author
author
author
dc.subject.none.fl_str_mv Concrete -- Additives
XRD (C)
Polycarboxylate (E)
Clay (C)
d-spacing (E)
Synchrotron radiation (C)
Intercalation (D)
Exfoliation (C)
Formigó -- Additius
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
topic Concrete -- Additives
XRD (C)
Polycarboxylate (E)
Clay (C)
d-spacing (E)
Synchrotron radiation (C)
Intercalation (D)
Exfoliation (C)
Formigó -- Additius
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
description The influence of polymeric structure of polycarboxylate-ether (PCE) based superplasticizers on the intercalation behavior in sodium montmorillonite clay (Na-MNT) is investigated by performing in-situ X-ray diffraction (XRPD) on fresh, unaltered clay pastes. The use of this technique reveals the real influence of the PCE structure and of the PCE/clay dosage ratio on the expansion profile of the clay. This is not observed with the traditional XRPD methodology performed on dried clay pastes, which shows the same values of d-spacing despite using polymers of diverse structures. It is observed that PCE polymers with long side chains and high side chain density result in larger expansion. Additionally, polymers with a high anionic charge saturate the interlaminar space of montmorillonite at a lower dosage. The experimental results also indicate that clay exfoliation is critical in the intercalation process and the exfoliation tendency of the clay is influenced by the structure of PCE polymers.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-09-01
2019
2019-09-10
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/168107
https://dx.doi.org/10.1016/j.conbuildmat.2019.06.014
url https://hdl.handle.net/2117/168107
https://dx.doi.org/10.1016/j.conbuildmat.2019.06.014
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
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869414098012209152
score 15,301603

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