Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cement

The present work aims to obtain an optimal Portland cement, gypsum and fly ash (OPC-G-FA) ternary binder matrix and assess both the addition of paper pulp-by means of mechanical dispersion in aqueous suspension-for cementitious composites reinforcement and the fiber properties over time. To evaluate...

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Detalhes bibliográficos
Autores: Mármol, Gonzalo, Monzó, José María, Borrachero, María Victoria, Soriano, Lourdes, Payá, Jordi, Savastano Jr., Holmer
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/413643
Acesso em linha:http://hdl.handle.net/10261/413643
https://api.elsevier.com/content/abstract/scopus_id/84984843525
Access Level:acceso abierto
Palavra-chave:Fiber-cement
Lignocellulosic fibers endurance
Pozzolan and Gypsum systems
Ternary Portland cement
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spelling Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cementMármol, GonzaloMonzó, José MaríaBorrachero, María VictoriaSoriano, LourdesPayá, JordiSavastano Jr., HolmerFiber-cementLignocellulosic fibers endurancePozzolan and Gypsum systemsTernary Portland cementThe present work aims to obtain an optimal Portland cement, gypsum and fly ash (OPC-G-FA) ternary binder matrix and assess both the addition of paper pulp-by means of mechanical dispersion in aqueous suspension-for cementitious composites reinforcement and the fiber properties over time. To evaluate microfibers preservation from pulp in low-alkaline environments, ternary binder matrices OPC-G-FA are optimized to achieve lower pH values. For that purpose, pH and electrical conductivity over time were analyzed. Only samples with the lowest content in Portland cement (15–20%) offered low alkalinity for short-term. The use of ternary binder systems enhances microfibers conservation compared with control samples (matrices 100% Ordinary Portland Cement) by using FA that, as expected, reduces the presence of Ca(OH)2 in the matrix. Mechanical results prove that obtained matrices yield to a mechanical properties maintenance unlike samples with OPC matrices where toughness is reduced by 95%.Financial support for this research project was provided by Conselho Nacional de Desenvolvimento Científico e Tecnológico ( CNPq – Brazil) by means of a grant [ 351196/2014-5 ].Peer reviewedElsevierConselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil)Mármol, Gonzalo [0000-0003-1850-3178]202620262016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/413643https://api.elsevier.com/content/abstract/scopus_id/84984843525reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésConstruction and Building Materialshttps://doi.org/10.1016/j.conbuildmat.2016.07.083Noinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4136432026-05-22T06:33:51Z
dc.title.none.fl_str_mv Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cement
title Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cement
spellingShingle Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cement
Mármol, Gonzalo
Fiber-cement
Lignocellulosic fibers endurance
Pozzolan and Gypsum systems
Ternary Portland cement
title_short Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cement
title_full Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cement
title_fullStr Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cement
title_full_unstemmed Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cement
title_sort Portland cement, gypsum and fly ash binder systems characterization for lignocellulosic fiber-cement
dc.creator.none.fl_str_mv Mármol, Gonzalo
Monzó, José María
Borrachero, María Victoria
Soriano, Lourdes
Payá, Jordi
Savastano Jr., Holmer
author Mármol, Gonzalo
author_facet Mármol, Gonzalo
Monzó, José María
Borrachero, María Victoria
Soriano, Lourdes
Payá, Jordi
Savastano Jr., Holmer
author_role author
author2 Monzó, José María
Borrachero, María Victoria
Soriano, Lourdes
Payá, Jordi
Savastano Jr., Holmer
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil)
Mármol, Gonzalo [0000-0003-1850-3178]
dc.subject.none.fl_str_mv Fiber-cement
Lignocellulosic fibers endurance
Pozzolan and Gypsum systems
Ternary Portland cement
topic Fiber-cement
Lignocellulosic fibers endurance
Pozzolan and Gypsum systems
Ternary Portland cement
description The present work aims to obtain an optimal Portland cement, gypsum and fly ash (OPC-G-FA) ternary binder matrix and assess both the addition of paper pulp-by means of mechanical dispersion in aqueous suspension-for cementitious composites reinforcement and the fiber properties over time. To evaluate microfibers preservation from pulp in low-alkaline environments, ternary binder matrices OPC-G-FA are optimized to achieve lower pH values. For that purpose, pH and electrical conductivity over time were analyzed. Only samples with the lowest content in Portland cement (15–20%) offered low alkalinity for short-term. The use of ternary binder systems enhances microfibers conservation compared with control samples (matrices 100% Ordinary Portland Cement) by using FA that, as expected, reduces the presence of Ca(OH)2 in the matrix. Mechanical results prove that obtained matrices yield to a mechanical properties maintenance unlike samples with OPC matrices where toughness is reduced by 95%.
publishDate 2016
dc.date.none.fl_str_mv 2016
2026
2026
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/10261/413643
https://api.elsevier.com/content/abstract/scopus_id/84984843525
url http://hdl.handle.net/10261/413643
https://api.elsevier.com/content/abstract/scopus_id/84984843525
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Construction and Building Materials
https://doi.org/10.1016/j.conbuildmat.2016.07.083
No
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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score 15,81155

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