The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax composites

Fibre and textile-reinforced mortars are increasingly being used for a variety of building applications, including the strengthening of masonry structures. Lime mortars reinforced with sustainable fibres (such as vegetable or cellulosic fibres) may provide an interesting solution. In this paper, a m...

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Detalles Bibliográficos
Autores: Rakhsh Mahpour, Ali, Ventura Casellas, Heura, Ardanuy Raso, Mónica, Rosell Amigó, Juan Ramón, Claramunt Blanes, José
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Consejo General de la Arquitectura Técnica de España (CGATE)
Repositorio:RIARTE
OAI Identifier:oai:www.riarte.es:20.500.12251/3424
Acceso en línea:http://hdl.handle.net/20.500.12251/3424
https://doi.org/10.1016/j.cemconcomp.2023.104981
Access Level:acceso abierto
Palabra clave:Dióxido de carbono
Carbonatación
Morteros - Construcción
Fibra de refuerzo
Restauración arquitectónica
Resistencia mecánica
Ensayos (propiedades o materiales)
Fibra vegetal
3313.04 Material de Construcción
2304.11 Fibras Naturales
2211.02 Materiales Compuestos
3312.08 Propiedades de Los Materiales
3312.09 Resistencia de Materiales
3312.12 Ensayo de Materiales
3312.07 Caliza
3312.02 Aglomerantes
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spelling The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax compositesRakhsh Mahpour, AliVentura Casellas, HeuraArdanuy Raso, MónicaRosell Amigó, Juan RamónClaramunt Blanes, JoséDióxido de carbonoCarbonataciónMorteros - ConstrucciónFibra de refuerzoRestauración arquitectónicaResistencia mecánicaEnsayos (propiedades o materiales)Fibra vegetal3313.04 Material de Construcción2304.11 Fibras Naturales2211.02 Materiales Compuestos3312.08 Propiedades de Los Materiales3312.09 Resistencia de Materiales3312.12 Ensayo de Materiales3312.07 Caliza3312.02 AglomerantesFibre and textile-reinforced mortars are increasingly being used for a variety of building applications, including the strengthening of masonry structures. Lime mortars reinforced with sustainable fibres (such as vegetable or cellulosic fibres) may provide an interesting solution. In this paper, a mixture of commercial lime with 20% metakaolin addition was used to produce composites reinforced with non-woven flax fabrics that were cured at different moisture contents (from 0 to 100%) for 7 or 14 days in a CO2 incubator. The composites were characterised to determine their flexural behaviour, carbonation level and microstructure. According to the results, no differences exist in the flexural strength of the composites made in the moisture range of 33%–66%. At 7 days of curing, they attained Modulus of Rupture (MOR) values that exceeded 5.5. MPa. Moreover, it was observed that under high moisture conditions, the permeability of the fibres allows for CO2 access, despite the saturation of the pores of the matrix – allowing a reaction in the vicinity of the fibres –, while under dry conditions, the fibres moisture retention does not permit the carbonation of the matrix in their vicinity, even though complete carbonation takes place after 14 days. © 2023 The AuthorsElsevier Ltd2023info:eu-repo/semantics/articlehttp://hdl.handle.net/20.500.12251/3424https://doi.org/10.1016/j.cemconcomp.2023.104981reponame:RIARTEinstname:Consejo General de la Arquitectura Técnica de España (CGATE)Ingléshttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:www.riarte.es:20.500.12251/34242026-06-02T12:44:41Z
dc.title.none.fl_str_mv The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax composites
title The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax composites
spellingShingle The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax composites
Rakhsh Mahpour, Ali
Dióxido de carbono
Carbonatación
Morteros - Construcción
Fibra de refuerzo
Restauración arquitectónica
Resistencia mecánica
Ensayos (propiedades o materiales)
Fibra vegetal
3313.04 Material de Construcción
2304.11 Fibras Naturales
2211.02 Materiales Compuestos
3312.08 Propiedades de Los Materiales
3312.09 Resistencia de Materiales
3312.12 Ensayo de Materiales
3312.07 Caliza
3312.02 Aglomerantes
title_short The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax composites
title_full The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax composites
title_fullStr The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax composites
title_full_unstemmed The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax composites
title_sort The effect of fibres and carbonation conditions on the mechanical properties and microstructure of lime/flax composites
dc.creator.none.fl_str_mv Rakhsh Mahpour, Ali
Ventura Casellas, Heura
Ardanuy Raso, Mónica
Rosell Amigó, Juan Ramón
Claramunt Blanes, José
author Rakhsh Mahpour, Ali
author_facet Rakhsh Mahpour, Ali
Ventura Casellas, Heura
Ardanuy Raso, Mónica
Rosell Amigó, Juan Ramón
Claramunt Blanes, José
author_role author
author2 Ventura Casellas, Heura
Ardanuy Raso, Mónica
Rosell Amigó, Juan Ramón
Claramunt Blanes, José
author2_role author
author
author
author
dc.subject.none.fl_str_mv Dióxido de carbono
Carbonatación
Morteros - Construcción
Fibra de refuerzo
Restauración arquitectónica
Resistencia mecánica
Ensayos (propiedades o materiales)
Fibra vegetal
3313.04 Material de Construcción
2304.11 Fibras Naturales
2211.02 Materiales Compuestos
3312.08 Propiedades de Los Materiales
3312.09 Resistencia de Materiales
3312.12 Ensayo de Materiales
3312.07 Caliza
3312.02 Aglomerantes
topic Dióxido de carbono
Carbonatación
Morteros - Construcción
Fibra de refuerzo
Restauración arquitectónica
Resistencia mecánica
Ensayos (propiedades o materiales)
Fibra vegetal
3313.04 Material de Construcción
2304.11 Fibras Naturales
2211.02 Materiales Compuestos
3312.08 Propiedades de Los Materiales
3312.09 Resistencia de Materiales
3312.12 Ensayo de Materiales
3312.07 Caliza
3312.02 Aglomerantes
description Fibre and textile-reinforced mortars are increasingly being used for a variety of building applications, including the strengthening of masonry structures. Lime mortars reinforced with sustainable fibres (such as vegetable or cellulosic fibres) may provide an interesting solution. In this paper, a mixture of commercial lime with 20% metakaolin addition was used to produce composites reinforced with non-woven flax fabrics that were cured at different moisture contents (from 0 to 100%) for 7 or 14 days in a CO2 incubator. The composites were characterised to determine their flexural behaviour, carbonation level and microstructure. According to the results, no differences exist in the flexural strength of the composites made in the moisture range of 33%–66%. At 7 days of curing, they attained Modulus of Rupture (MOR) values that exceeded 5.5. MPa. Moreover, it was observed that under high moisture conditions, the permeability of the fibres allows for CO2 access, despite the saturation of the pores of the matrix – allowing a reaction in the vicinity of the fibres –, while under dry conditions, the fibres moisture retention does not permit the carbonation of the matrix in their vicinity, even though complete carbonation takes place after 14 days. © 2023 The Authors
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12251/3424
https://doi.org/10.1016/j.cemconcomp.2023.104981
url http://hdl.handle.net/20.500.12251/3424
https://doi.org/10.1016/j.cemconcomp.2023.104981
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv reponame:RIARTE
instname:Consejo General de la Arquitectura Técnica de España (CGATE)
instname_str Consejo General de la Arquitectura Técnica de España (CGATE)
reponame_str RIARTE
collection RIARTE
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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