Contribution to the design of hydraulic lime-based grouts for masonry consolidation
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/98860 |
Resumo: | Grout is a concentrated suspension that can be employed for the homogenisation and consolidation of systems presenting pores, voids and cracks, such as inner core of old stone masonries. A grout should be well conceived, taking into account the optimisation of its performance; this means that simple binder and water formulations prove to be inadequate. Hence, the effect of different admixtures and pozzolans, which are traditionally used in concrete, on the fresh and hardened properties of hydraulic lime grouts, were investigated. Hydraulic lime binder plays a role of great importance in the rehabilitation of historic structures, due to its compatibility with pre-existing materials, like mortars. However, hardly any information is presently known regarding the effect of these materials on the behaviour of hydraulic lime grouts. The improvement of their properties through the use of these products is still an open field. Hence, and as a first step, the prediction of grout properties in a laboratory setting were made. The results summarised in this paper are part of a large research project and precede the fine tuning of grout composition according to the characteristics of the masonry to which such a grout is to be injected. |
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Contribution to the design of hydraulic lime-based grouts for masonry consolidationair entraining agentfly ashhydraulic lime groutmasonry consolidationsilica fumesuperplasticiserCivil and Structural EngineeringStrategy and ManagementGrout is a concentrated suspension that can be employed for the homogenisation and consolidation of systems presenting pores, voids and cracks, such as inner core of old stone masonries. A grout should be well conceived, taking into account the optimisation of its performance; this means that simple binder and water formulations prove to be inadequate. Hence, the effect of different admixtures and pozzolans, which are traditionally used in concrete, on the fresh and hardened properties of hydraulic lime grouts, were investigated. Hydraulic lime binder plays a role of great importance in the rehabilitation of historic structures, due to its compatibility with pre-existing materials, like mortars. However, hardly any information is presently known regarding the effect of these materials on the behaviour of hydraulic lime grouts. The improvement of their properties through the use of these products is still an open field. Hence, and as a first step, the prediction of grout properties in a laboratory setting were made. The results summarised in this paper are part of a large research project and precede the fine tuning of grout composition according to the characteristics of the masonry to which such a grout is to be injected.DEC - Departamento de Engenharia CivilDCM - Departamento de Ciência dos MateriaisCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)RUNBaltazar, Luis G.Henriques, Fernando M. A.Cidade, Maria Teresa2020-06-04T23:14:14Z2015-08-182015-08-18T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article12application/pdfhttp://hdl.handle.net/10362/98860eng1392-3730PURE: 1116432https://doi.org/10.3846/13923730.2014.893918info: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:RCAAP2024-03-11T04:46:04Zoai:run.unl.pt:10362/98860Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:39:05.374831Repositório 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 |
Contribution to the design of hydraulic lime-based grouts for masonry consolidation |
title |
Contribution to the design of hydraulic lime-based grouts for masonry consolidation |
spellingShingle |
Contribution to the design of hydraulic lime-based grouts for masonry consolidation Baltazar, Luis G. air entraining agent fly ash hydraulic lime grout masonry consolidation silica fume superplasticiser Civil and Structural Engineering Strategy and Management |
title_short |
Contribution to the design of hydraulic lime-based grouts for masonry consolidation |
title_full |
Contribution to the design of hydraulic lime-based grouts for masonry consolidation |
title_fullStr |
Contribution to the design of hydraulic lime-based grouts for masonry consolidation |
title_full_unstemmed |
Contribution to the design of hydraulic lime-based grouts for masonry consolidation |
title_sort |
Contribution to the design of hydraulic lime-based grouts for masonry consolidation |
author |
Baltazar, Luis G. |
author_facet |
Baltazar, Luis G. Henriques, Fernando M. A. Cidade, Maria Teresa |
author_role |
author |
author2 |
Henriques, Fernando M. A. Cidade, Maria Teresa |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
DEC - Departamento de Engenharia Civil DCM - Departamento de Ciência dos Materiais CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N) RUN |
dc.contributor.author.fl_str_mv |
Baltazar, Luis G. Henriques, Fernando M. A. Cidade, Maria Teresa |
dc.subject.por.fl_str_mv |
air entraining agent fly ash hydraulic lime grout masonry consolidation silica fume superplasticiser Civil and Structural Engineering Strategy and Management |
topic |
air entraining agent fly ash hydraulic lime grout masonry consolidation silica fume superplasticiser Civil and Structural Engineering Strategy and Management |
description |
Grout is a concentrated suspension that can be employed for the homogenisation and consolidation of systems presenting pores, voids and cracks, such as inner core of old stone masonries. A grout should be well conceived, taking into account the optimisation of its performance; this means that simple binder and water formulations prove to be inadequate. Hence, the effect of different admixtures and pozzolans, which are traditionally used in concrete, on the fresh and hardened properties of hydraulic lime grouts, were investigated. Hydraulic lime binder plays a role of great importance in the rehabilitation of historic structures, due to its compatibility with pre-existing materials, like mortars. However, hardly any information is presently known regarding the effect of these materials on the behaviour of hydraulic lime grouts. The improvement of their properties through the use of these products is still an open field. Hence, and as a first step, the prediction of grout properties in a laboratory setting were made. The results summarised in this paper are part of a large research project and precede the fine tuning of grout composition according to the characteristics of the masonry to which such a grout is to be injected. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-08-18 2015-08-18T00:00:00Z 2020-06-04T23:14:14Z |
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 |
http://hdl.handle.net/10362/98860 |
url |
http://hdl.handle.net/10362/98860 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1392-3730 PURE: 1116432 https://doi.org/10.3846/13923730.2014.893918 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
12 application/pdf |
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) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799138006905389056 |