Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5913
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dc.contributorDepartment of Land Surveying and Geo-Informaticsen_US
dc.contributorDepartment of Civil and Environmental Engineeringen_US
dc.creatorLai, WLWen_US
dc.creatorPoon, CSen_US
dc.date.accessioned2014-12-11T08:25:55Z-
dc.date.available2014-12-11T08:25:55Z-
dc.identifier.isbn978-988-15-4393-6en_US
dc.identifier.urihttp://hdl.handle.net/10397/5913-
dc.language.isoenen_US
dc.publisherFaculty of Construction and Environment & Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic Universityen_US
dc.subjectInfrared thermographyen_US
dc.subjectDebond of wall finishesen_US
dc.subjectHigh-rise buildingen_US
dc.titleDurability and debond evaluation of high-rise concrete buildings using infrared thermographyen_US
dc.typeConference Paperen_US
dc.description.otherinformationAuthor name used in this publication: W. L. Laien_US
dc.description.otherinformationRefereed conference paperen_US
dcterms.abstractThe paper presents the development of a passive infrared thermography (IRT) method as a screening tool to indicate and measure the size of debonds in external wall envelop of building structures. The underlying principle of this method is the comparison of the surface temperature at areas with heat trapped by air (debond) during and after exposure to sunlight with the cooler areas (without debond). Mathematical inversion of the heat distribution over an external wall surface enables the measurement and calculation of debond size and boundary. It has been proven that the proposed methodology and algorithm are accurate, and can be used generally because they are not affected by factors like depth of debond, sizes of debond, surface temperatures, temperature scales set in the infrared camera and time when the thermograms are taken. This quantitative method allows the evaluation of the long term durability and facilitates planning of rehabilitation of tall buildings.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationProceedings of the First International Conference on Performance-based and Life-cycle Structural Engineering (PLSE 2012) : 5-7 December 2012, Hong Kong, Chinaen_US
dcterms.issued2012-
dc.identifier.rosgroupidr62763-
dc.description.ros2012-2013 > Academic research: refereed > Refereed conference paperen_US
dc.description.oaOther Versionen_US
dc.identifier.FolderNumberOA_IR/PIRA-
dc.description.pubStatusPublisheden_US
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