Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materials

Detalhes bibliográficos
Autor(a) principal: Musacchi, J.
Data de Publicação: 2014
Outros Autores: Gonçalves, T. D.
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1006118
Resumo: In this report we describe an experimental study carried out at LNEC within the research project DRYMASS (ref. PTDC/ECM/100553/2008). The study was aimed at evaluating the possibility of increasing the drying rate of porous building materials by means of nano-treatments. It was justified by previous results of other authors that observed an apparently unexplainable increase in the evaporation rate of natural stone after application of nano-calcium hydroxide solutions as consolidating agents. Two commercial treatments, consisting on alcoholic or aqueous suspensions of nano-lime or nanosilica, respectively, were tested on three porous building materials. The treatments are generally used for consolidation. The materials were a lime mortar and two natural stones (Ançã limestone and Bentheimer sandstone). It was concluded that neither of the nano-treatments hinders drying. However, they were also not able to increase the drying kinetics of any of the three substrates.
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spelling Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materialsNano-limeNano sílicaDryingPorous materialsIn this report we describe an experimental study carried out at LNEC within the research project DRYMASS (ref. PTDC/ECM/100553/2008). The study was aimed at evaluating the possibility of increasing the drying rate of porous building materials by means of nano-treatments. It was justified by previous results of other authors that observed an apparently unexplainable increase in the evaporation rate of natural stone after application of nano-calcium hydroxide solutions as consolidating agents. Two commercial treatments, consisting on alcoholic or aqueous suspensions of nano-lime or nanosilica, respectively, were tested on three porous building materials. The treatments are generally used for consolidation. The materials were a lime mortar and two natural stones (Ançã limestone and Bentheimer sandstone). It was concluded that neither of the nano-treatments hinders drying. However, they were also not able to increase the drying kinetics of any of the three substrates.LNEC2014-05-21T09:04:43Z2014-10-20T16:09:40Z2014-04-01T00:00:00Z2014-04info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/reportapplication/pdfhttp://repositorio.lnec.pt:8080/jspui/handle/123456789/1006118engMusacchi, J.Gonçalves, T. D.info: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:RCAAP2024-01-13T03:00:27Zoai:localhost:123456789/1006118Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:37:47.127657Repositório 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 Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materials
title Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materials
spellingShingle Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materials
Musacchi, J.
Nano-lime
Nano sílica
Drying
Porous materials
title_short Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materials
title_full Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materials
title_fullStr Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materials
title_full_unstemmed Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materials
title_sort Influence of nano-lime and nano-silica consolidants in the drying kinetics of three porous building materials
author Musacchi, J.
author_facet Musacchi, J.
Gonçalves, T. D.
author_role author
author2 Gonçalves, T. D.
author2_role author
dc.contributor.author.fl_str_mv Musacchi, J.
Gonçalves, T. D.
dc.subject.por.fl_str_mv Nano-lime
Nano sílica
Drying
Porous materials
topic Nano-lime
Nano sílica
Drying
Porous materials
description In this report we describe an experimental study carried out at LNEC within the research project DRYMASS (ref. PTDC/ECM/100553/2008). The study was aimed at evaluating the possibility of increasing the drying rate of porous building materials by means of nano-treatments. It was justified by previous results of other authors that observed an apparently unexplainable increase in the evaporation rate of natural stone after application of nano-calcium hydroxide solutions as consolidating agents. Two commercial treatments, consisting on alcoholic or aqueous suspensions of nano-lime or nanosilica, respectively, were tested on three porous building materials. The treatments are generally used for consolidation. The materials were a lime mortar and two natural stones (Ançã limestone and Bentheimer sandstone). It was concluded that neither of the nano-treatments hinders drying. However, they were also not able to increase the drying kinetics of any of the three substrates.
publishDate 2014
dc.date.none.fl_str_mv 2014-05-21T09:04:43Z
2014-10-20T16:09:40Z
2014-04-01T00:00:00Z
2014-04
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://repositorio.lnec.pt:8080/jspui/handle/123456789/1006118
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language eng
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dc.publisher.none.fl_str_mv LNEC
publisher.none.fl_str_mv LNEC
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