Anomalies detection in adhesive wall tiling systems by infrared thermography
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/20367 |
Resumo: | Tiling systems for building facade coatings are widely used all over the world. Despite very common, mainly due to its aesthetic characteristics, this kind of cladding is characterised by a complex application, given the fact that it is a system in direct contact with a support (the rendered wall) and composed by three different components with specific characteristics and technical requirements: the tiles, the adhesive grout, and the joint grout. This complexity can result in several possible anomalies, as it is the case of detachment, the most common onerous one and probably the most difficult anomaly to early diagnosis in this type of cladding. Infrared thermography is a non-destructive testing method with a broad applicability in buildings’ inspection. The method consists in using a thermal camera that, by detecting thermal radiation, reads thermal variations that can indicate the presence of anomalies. Taking into account this diagnosis method’s potential, it was developed in LNEC a wide study where the results of thermographic surveys on laboratory specimens, exterior panels cladded with tiles with controlled anomalies and case studies of real situations are presented. In order to characterize the claddings behaviour and the anomalies’ detectability using this method, in a first phase eight specimens were studied in laboratory with differences in terms of: colour, thickness, kind of support, finishing and presence of anomaly. In a second phase, four panels divided into two experimental cells, located in LNEC’s campus, aiming to evaluate the diagnostic technique in exterior facades with differences in terms of tiles’ colour and support of application. As a complement of the laboratory surveys (indoors and outdoors) certain features of this kind of cladding were characterized, such as their emittance and reflectance. In order to evaluate infrared thermography’s diagnosis capability in real and unfamiliar situations, two real cases of buildings in Lisbon, cladded with ceramic tiles, were studied. The results obtained in the form of thermal differentials between “normal” and “anomalous” zones in a tiled facade or specimen proved that Infrared Thermography can be a valuable tool to early identification of anomalies, mainly detachments, in this kind of coating systems. |
id |
RCAP_989221d9fdc4c44b54a8a11ca9e87c60 |
---|---|
oai_identifier_str |
oai:run.unl.pt:10362/20367 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Anomalies detection in adhesive wall tiling systems by infrared thermographyNon-destructive testing methodAnomalyTileDetachmentInfrared thermographyFacadeDomínio/Área Científica::Engenharia e Tecnologia::Engenharia CivilTiling systems for building facade coatings are widely used all over the world. Despite very common, mainly due to its aesthetic characteristics, this kind of cladding is characterised by a complex application, given the fact that it is a system in direct contact with a support (the rendered wall) and composed by three different components with specific characteristics and technical requirements: the tiles, the adhesive grout, and the joint grout. This complexity can result in several possible anomalies, as it is the case of detachment, the most common onerous one and probably the most difficult anomaly to early diagnosis in this type of cladding. Infrared thermography is a non-destructive testing method with a broad applicability in buildings’ inspection. The method consists in using a thermal camera that, by detecting thermal radiation, reads thermal variations that can indicate the presence of anomalies. Taking into account this diagnosis method’s potential, it was developed in LNEC a wide study where the results of thermographic surveys on laboratory specimens, exterior panels cladded with tiles with controlled anomalies and case studies of real situations are presented. In order to characterize the claddings behaviour and the anomalies’ detectability using this method, in a first phase eight specimens were studied in laboratory with differences in terms of: colour, thickness, kind of support, finishing and presence of anomaly. In a second phase, four panels divided into two experimental cells, located in LNEC’s campus, aiming to evaluate the diagnostic technique in exterior facades with differences in terms of tiles’ colour and support of application. As a complement of the laboratory surveys (indoors and outdoors) certain features of this kind of cladding were characterized, such as their emittance and reflectance. In order to evaluate infrared thermography’s diagnosis capability in real and unfamiliar situations, two real cases of buildings in Lisbon, cladded with ceramic tiles, were studied. The results obtained in the form of thermal differentials between “normal” and “anomalous” zones in a tiled facade or specimen proved that Infrared Thermography can be a valuable tool to early identification of anomalies, mainly detachments, in this kind of coating systems.Matias, LuísFaria, PaulinaRUNLourenço, Tomás Caldeira2017-03-21T16:43:41Z2016-122017-032016-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/20367enginfo: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:RCAAP2024-03-11T04:04:16Zoai:run.unl.pt:10362/20367Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:26:09.644903Repositório 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 |
Anomalies detection in adhesive wall tiling systems by infrared thermography |
title |
Anomalies detection in adhesive wall tiling systems by infrared thermography |
spellingShingle |
Anomalies detection in adhesive wall tiling systems by infrared thermography Lourenço, Tomás Caldeira Non-destructive testing method Anomaly Tile Detachment Infrared thermography Facade Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Civil |
title_short |
Anomalies detection in adhesive wall tiling systems by infrared thermography |
title_full |
Anomalies detection in adhesive wall tiling systems by infrared thermography |
title_fullStr |
Anomalies detection in adhesive wall tiling systems by infrared thermography |
title_full_unstemmed |
Anomalies detection in adhesive wall tiling systems by infrared thermography |
title_sort |
Anomalies detection in adhesive wall tiling systems by infrared thermography |
author |
Lourenço, Tomás Caldeira |
author_facet |
Lourenço, Tomás Caldeira |
author_role |
author |
dc.contributor.none.fl_str_mv |
Matias, Luís Faria, Paulina RUN |
dc.contributor.author.fl_str_mv |
Lourenço, Tomás Caldeira |
dc.subject.por.fl_str_mv |
Non-destructive testing method Anomaly Tile Detachment Infrared thermography Facade Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Civil |
topic |
Non-destructive testing method Anomaly Tile Detachment Infrared thermography Facade Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Civil |
description |
Tiling systems for building facade coatings are widely used all over the world. Despite very common, mainly due to its aesthetic characteristics, this kind of cladding is characterised by a complex application, given the fact that it is a system in direct contact with a support (the rendered wall) and composed by three different components with specific characteristics and technical requirements: the tiles, the adhesive grout, and the joint grout. This complexity can result in several possible anomalies, as it is the case of detachment, the most common onerous one and probably the most difficult anomaly to early diagnosis in this type of cladding. Infrared thermography is a non-destructive testing method with a broad applicability in buildings’ inspection. The method consists in using a thermal camera that, by detecting thermal radiation, reads thermal variations that can indicate the presence of anomalies. Taking into account this diagnosis method’s potential, it was developed in LNEC a wide study where the results of thermographic surveys on laboratory specimens, exterior panels cladded with tiles with controlled anomalies and case studies of real situations are presented. In order to characterize the claddings behaviour and the anomalies’ detectability using this method, in a first phase eight specimens were studied in laboratory with differences in terms of: colour, thickness, kind of support, finishing and presence of anomaly. In a second phase, four panels divided into two experimental cells, located in LNEC’s campus, aiming to evaluate the diagnostic technique in exterior facades with differences in terms of tiles’ colour and support of application. As a complement of the laboratory surveys (indoors and outdoors) certain features of this kind of cladding were characterized, such as their emittance and reflectance. In order to evaluate infrared thermography’s diagnosis capability in real and unfamiliar situations, two real cases of buildings in Lisbon, cladded with ceramic tiles, were studied. The results obtained in the form of thermal differentials between “normal” and “anomalous” zones in a tiled facade or specimen proved that Infrared Thermography can be a valuable tool to early identification of anomalies, mainly detachments, in this kind of coating systems. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-12 2016-12-01T00:00:00Z 2017-03-21T16:43:41Z 2017-03 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/20367 |
url |
http://hdl.handle.net/10362/20367 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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.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 |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
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 |
repository.mail.fl_str_mv |
|
_version_ |
1799137892160765952 |