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dc.contributor.authorJelle, Bjørn Petter
dc.contributor.authorNilsen, Tom-Nils
dc.contributor.authorHovde, Per Jostein
dc.contributor.authorGustavsen, Arild
dc.date.accessioned2017-04-03T11:39:45Z
dc.date.available2017-04-03T11:39:45Z
dc.date.created2011-10-20T19:20:54Z
dc.date.issued2012
dc.identifier.citationJournal of Building Physics. 2012, 36 (1), 99-112.nb_NO
dc.identifier.issn1744-2591
dc.identifier.urihttp://hdl.handle.net/11250/2436603
dc.description.abstractBuilding materials and their durability and aging are essential to the performance of buildings and their building physical aspects over time. Accelerated climate aging investigations are carried out in order to study the durability of various building materials in a substantial shorter time span than natural weather aging would have allowed. Climate parameters such as temperature that includes freezing/thawing cycles, relative air humidity, water spray amount, solar and/or ultraviolet (UV) radiation and exposure duration are controlled in different climate aging apparatuses. Various aging processes in building materials, aging both by natural and accelerated climate exposure, may be studied in an attenuated total reflectance (ATR) Fourier transform infrared (FTIR) radiation analysis following the decomposition and/or formation of chemical bonds in these building materials and products. ATR-FTIR analysis of different building material samples exhibit various levels of experimental difficulties. In this investigation we have studied the FTIR spectra of climate-weathered wood, wood rot, mold fungus on wood, mold fungus on plasterboard, and plastic degradation by UV radiation. Both qualitative and quantitative results may be obtained by an ATR-FTIR analysis. In order to determine the aging progress and assess the effective lifetime of materials, components, or products, FTIR spectra should be recorded before, during, and after the climate aging. Hence, FTIR may be developed as an important tool to track the condition of various materials, components, and products during the lifetime of a building, and thereby applied as a tool for condition assessment, selection of maintenance intervals, and service life prediction of buildings.nb_NO
dc.language.isoengnb_NO
dc.publisherSAGE Publicationsnb_NO
dc.titleAccelerated climate aging of building materials and their characterization by Fourier transform infrared radiation analysisnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.pagenumber99-112nb_NO
dc.source.volume36nb_NO
dc.source.journalJournal of Building Physicsnb_NO
dc.source.issue1nb_NO
dc.identifier.doi10.1177/1744259111423367
dc.identifier.cristin846724
dc.description.localcode© The Author(s) 2011. Reprints and permissions: sagepub.co.uk/journalsPermissions.nav. This is the authors' accepted and refereed manuscript to the article.nb_NO
cristin.unitcode194,64,35,0
cristin.unitcode194,66,30,0
cristin.unitcode194,61,25,0
cristin.unitnameInstitutt for bygg, anlegg og transport
cristin.unitnameInstitutt for kjemisk prosessteknologi
cristin.unitnameInstitutt for byggekunst, historie og teknologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.fulltextpostprint
cristin.qualitycode2


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