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Damage assessment on concrete surfaces using multi-spectral image analysis

2013-03Artigo científico Acesso restrito
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Civil
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorValença, J.
dc.contributor.authorGonçalves, Luísa M.S.
dc.contributor.authorJúlio, E.
dc.date.accessioned2026-04-14T09:59:04Z
dc.date.available2026-04-14T09:59:04Z
dc.date.issued2013-03
dc.description.abstractTo monitor the state of conservation of structures is extremely important to plan maintenance interventions, thus allowing minimizing associated costs. The aim of this paper is to investigate if Very High Spatial Resolution (VHSR) multispectral images can be used to detect, analyse and measure areas with biological colonization, stains and/or repair materials on exposed concrete surfaces. With this aim, the authors present a method, SurfCrete – Multi-spectral image analysis of concrete surfaces, which was tested to classify surface images of exposed concrete buildings where biological colonization, exposed aggregates, repairing mortars and cracks were previously detected on a visual inspection. This technique was performed using four multi-spectral bands (blue, green, red and near infrared). A vegetation index was also considered, as additional band information, to evaluate its usefulness in this kind of applications. SurfCrete allowed to achieve a global classification accuracy of 94%, which indicates that the identification of different materials, as well as damage, can be obtained from VHSR multispectral images using the developed methodology with a high accuracy. Surface mapping and statistical results are automatically obtained and stored in digital format which can be valuable when applied to large exposed concrete areas. Furthermore, results demonstrate that most accurate outputs can be derived using the near infrared band.eng
dc.description.sponsorshipThe authors acknowledge the financial support of the Portuguese Science and Technology Foundation (FCT) and of the company EC+A – Projectos Lda, Ph.D. Grant Number SFRH/BDE/15660/2007.
dc.identifier.citationJ. Valença, L.M.S. Gonçalves, E. Júlio, Damage assessment on concrete surfaces using multi-spectral image analysis, Construction and Building Materials, Volume 40, 2013, Pages 971-981, ISSN 0950-0618, https://doi.org/10.1016/j.conbuildmat.2012.11.061.
dc.identifier.doi10.1016/j.conbuildmat.2012.11.061
dc.identifier.issn0950-0618
dc.identifier.urihttp://hdl.handle.net/10400.8/16110
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.mdpi.com/2227-7102/15/12/1681
dc.relation.ispartofConstruction and Building Materials
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectMulti-spectral image analysis
dc.subjectNDT
dc.subjectBiological colonization
dc.subjectCracking
dc.subjectConcrete
dc.subjectAssessment
dc.subjectMonitoring
dc.titleDamage assessment on concrete surfaces using multi-spectral image analysiseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage981
oaire.citation.startPage971
oaire.citation.titleConstruction and Building Materials
oaire.citation.volume40
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameGonçalves
person.givenNameLuisa
person.identifier.ciencia-id9116-82A0-3060
person.identifier.orcid0000-0002-6265-8903
person.identifier.ridU-1298-2017
person.identifier.scopus-author-id35145815700
relation.isAuthorOfPublication1ba44699-bdda-4e01-97ec-c02fe603afc5
relation.isAuthorOfPublication.latestForDiscovery1ba44699-bdda-4e01-97ec-c02fe603afc5

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