Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/84080 |
Resumo: | This paper presents a numerical study on moisture transport in brick masonry walls with a special focus on the simulation of their hygric performance as well as the hydraulic phenomena at the brick-mortar interface. A diffusivity model based on Fick's law is used to describe the moisture transport accounting for both liquid and water vapor movement. The necessary hygric parameters are obtained directly from experimental tests or determined by curve fitting. The proposed model is validated with respect to water absorption and drying tests. The good-fitness of the results is qualitatively assessed and an overall good agreement is found between the simulated and measured curves. It is demonstrated that the chosen liquid water diffusivity expression needs to be adjusted to represent drying processes; the necessary adjustment is made through a diffusivity factor implemented in the original analytical expression. The interface impact on water absorption is introduced as a hydraulic resistance. Moreover, it is hypothesized that the presence of successive interfaces entails an additive in-series effect. Conversely, the interfacial impact on drying is negligible. Finally, the proposed model is extended to different modeling approaches commonly used for mechanical studies of masonry. The necessary input data, modeling methodology, advantages and disadvantages associated with each modeling strategy are also discussed. The present study points out the need of studying water absorption in multi-layered structures made up of constituents with relatively similar hygric behavior. In such cases, the impact of imperfect contact at the interface between materials is not negligible. |
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Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomenaMasonryMoisture transportDiffusivity modelNumerical simulationMulti-layered materialBrick-mortar interfaceEngenharia e Tecnologia::Engenharia CivilScience & TechnologyIndústria, inovação e infraestruturasThis paper presents a numerical study on moisture transport in brick masonry walls with a special focus on the simulation of their hygric performance as well as the hydraulic phenomena at the brick-mortar interface. A diffusivity model based on Fick's law is used to describe the moisture transport accounting for both liquid and water vapor movement. The necessary hygric parameters are obtained directly from experimental tests or determined by curve fitting. The proposed model is validated with respect to water absorption and drying tests. The good-fitness of the results is qualitatively assessed and an overall good agreement is found between the simulated and measured curves. It is demonstrated that the chosen liquid water diffusivity expression needs to be adjusted to represent drying processes; the necessary adjustment is made through a diffusivity factor implemented in the original analytical expression. The interface impact on water absorption is introduced as a hydraulic resistance. Moreover, it is hypothesized that the presence of successive interfaces entails an additive in-series effect. Conversely, the interfacial impact on drying is negligible. Finally, the proposed model is extended to different modeling approaches commonly used for mechanical studies of masonry. The necessary input data, modeling methodology, advantages and disadvantages associated with each modeling strategy are also discussed. The present study points out the need of studying water absorption in multi-layered structures made up of constituents with relatively similar hygric behavior. In such cases, the impact of imperfect contact at the interface between materials is not negligible.Funding This work was financed by national funds through FCT-Foundation for Science and Technology, under grant agreement SFRH/BD/117114/2016 attributed to the first author.ElsevierUniversidade do MinhoRamirez, R.Ghiassi, B.Pineda, P.Lourenço, Paulo B.20232023-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/84080engRamirez, R., Ghiassi, B., Pineda, P., & Lourenço, P. B. (2023, January). Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena. Building and Environment. Elsevier BV. http://doi.org/10.1016/j.buildenv.2022.1098380360-132310.1016/j.buildenv.2022.109838109838https://doi.org/10.1016/j.buildenv.2022.109838info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-30T01:25:37Zoai:repositorium.sdum.uminho.pt:1822/84080Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:24:02.767834Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena |
title |
Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena |
spellingShingle |
Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena Ramirez, R. Masonry Moisture transport Diffusivity model Numerical simulation Multi-layered material Brick-mortar interface Engenharia e Tecnologia::Engenharia Civil Science & Technology Indústria, inovação e infraestruturas |
title_short |
Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena |
title_full |
Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena |
title_fullStr |
Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena |
title_full_unstemmed |
Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena |
title_sort |
Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena |
author |
Ramirez, R. |
author_facet |
Ramirez, R. Ghiassi, B. Pineda, P. Lourenço, Paulo B. |
author_role |
author |
author2 |
Ghiassi, B. Pineda, P. Lourenço, Paulo B. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Ramirez, R. Ghiassi, B. Pineda, P. Lourenço, Paulo B. |
dc.subject.por.fl_str_mv |
Masonry Moisture transport Diffusivity model Numerical simulation Multi-layered material Brick-mortar interface Engenharia e Tecnologia::Engenharia Civil Science & Technology Indústria, inovação e infraestruturas |
topic |
Masonry Moisture transport Diffusivity model Numerical simulation Multi-layered material Brick-mortar interface Engenharia e Tecnologia::Engenharia Civil Science & Technology Indústria, inovação e infraestruturas |
description |
This paper presents a numerical study on moisture transport in brick masonry walls with a special focus on the simulation of their hygric performance as well as the hydraulic phenomena at the brick-mortar interface. A diffusivity model based on Fick's law is used to describe the moisture transport accounting for both liquid and water vapor movement. The necessary hygric parameters are obtained directly from experimental tests or determined by curve fitting. The proposed model is validated with respect to water absorption and drying tests. The good-fitness of the results is qualitatively assessed and an overall good agreement is found between the simulated and measured curves. It is demonstrated that the chosen liquid water diffusivity expression needs to be adjusted to represent drying processes; the necessary adjustment is made through a diffusivity factor implemented in the original analytical expression. The interface impact on water absorption is introduced as a hydraulic resistance. Moreover, it is hypothesized that the presence of successive interfaces entails an additive in-series effect. Conversely, the interfacial impact on drying is negligible. Finally, the proposed model is extended to different modeling approaches commonly used for mechanical studies of masonry. The necessary input data, modeling methodology, advantages and disadvantages associated with each modeling strategy are also discussed. The present study points out the need of studying water absorption in multi-layered structures made up of constituents with relatively similar hygric behavior. In such cases, the impact of imperfect contact at the interface between materials is not negligible. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023 2023-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/84080 |
url |
https://hdl.handle.net/1822/84080 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ramirez, R., Ghiassi, B., Pineda, P., & Lourenço, P. B. (2023, January). Simulation of moisture transport in fired-clay brick masonry structures accounting for interfacial phenomena. Building and Environment. Elsevier BV. http://doi.org/10.1016/j.buildenv.2022.109838 0360-1323 10.1016/j.buildenv.2022.109838 109838 https://doi.org/10.1016/j.buildenv.2022.109838 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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