Performance of thermally modified timber (TMT) in outdoor application – durability, abrasion and optical appearance

Thermally modified timber (TMT) is increasingly offered in Europe as an alternative to preservative treated timber. TMT durability in field tests as well as its moisture sorption behaviour in façade application was determined so as to consider its suitability for outdoor use. Additionally, abrasion...

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Autores principales:	Christian R. Welzbacher, Christian Brischke, Andreas O. Rapp, Silvia Koch, Sabine Hofer
Formato:	article
Lenguaje:	EN
Publicado:	University of Zagreb, Faculty of Forestry and Wood Technology 2009
Materias:	blue stain cracks decking façade weathering Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/9e335b8c8d4a40bebce2ed2cdb5e8cb8
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spelling	oai:doaj.org-article:9e335b8c8d4a40bebce2ed2cdb5e8cb82021-12-02T00:48:58ZPerformance of thermally modified timber (TMT) in outdoor application – durability, abrasion and optical appearance0012-6772https://doaj.org/article/9e335b8c8d4a40bebce2ed2cdb5e8cb82009-06-01T00:00:00Zhttp://drvnaindustrija.sumfak.hr/pdf//Drv%20Ind%20Vol%2060%202%20Welzbacher.pdfhttps://doaj.org/toc/0012-6772Thermally modified timber (TMT) is increasingly offered in Europe as an alternative to preservative treated timber. TMT durability in field tests as well as its moisture sorption behaviour in façade application was determined so as to consider its suitability for outdoor use. Additionally, abrasion and crack-formation of TMT deckings were examined and the optical appearance of a TMT façade was evaluated after 5 years of service. After 7.5 years exposure in ground contact, the various TMT materials tested were classed as “slightly durable” to “not durable” whereas the classification in above ground exposure as “very durable” to “moderately durable”, which was in line with the reduced moisture sorption of TMT in weathered application. Moreover, the TMT-decking showed less abrasion and crack-formation compared to references, though the TMT façade revealed considerable discoloration by weathering. Hence, the suitability of TMT for above ground use is suggested, but a surface treatment is obligatory if discoloration is objectionable.Christian R. WelzbacherChristian BrischkeAndreas O. RappSilvia KochSabine HoferUniversity of Zagreb, Faculty of Forestry and Wood Technologyarticleblue staincracksdeckingfaçadeweatheringForestrySD1-669.5ENDrvna Industrija, Vol 60, Iss 2, Pp 75-82 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	blue stain cracks decking façade weathering Forestry SD1-669.5
spellingShingle	blue stain cracks decking façade weathering Forestry SD1-669.5 Christian R. Welzbacher Christian Brischke Andreas O. Rapp Silvia Koch Sabine Hofer Performance of thermally modified timber (TMT) in outdoor application – durability, abrasion and optical appearance
description	Thermally modified timber (TMT) is increasingly offered in Europe as an alternative to preservative treated timber. TMT durability in field tests as well as its moisture sorption behaviour in façade application was determined so as to consider its suitability for outdoor use. Additionally, abrasion and crack-formation of TMT deckings were examined and the optical appearance of a TMT façade was evaluated after 5 years of service. After 7.5 years exposure in ground contact, the various TMT materials tested were classed as “slightly durable” to “not durable” whereas the classification in above ground exposure as “very durable” to “moderately durable”, which was in line with the reduced moisture sorption of TMT in weathered application. Moreover, the TMT-decking showed less abrasion and crack-formation compared to references, though the TMT façade revealed considerable discoloration by weathering. Hence, the suitability of TMT for above ground use is suggested, but a surface treatment is obligatory if discoloration is objectionable.
format	article
author	Christian R. Welzbacher Christian Brischke Andreas O. Rapp Silvia Koch Sabine Hofer
author_facet	Christian R. Welzbacher Christian Brischke Andreas O. Rapp Silvia Koch Sabine Hofer
author_sort	Christian R. Welzbacher
title	Performance of thermally modified timber (TMT) in outdoor application – durability, abrasion and optical appearance
title_short	Performance of thermally modified timber (TMT) in outdoor application – durability, abrasion and optical appearance
title_full	Performance of thermally modified timber (TMT) in outdoor application – durability, abrasion and optical appearance
title_fullStr	Performance of thermally modified timber (TMT) in outdoor application – durability, abrasion and optical appearance
title_full_unstemmed	Performance of thermally modified timber (TMT) in outdoor application – durability, abrasion and optical appearance
title_sort	performance of thermally modified timber (tmt) in outdoor application – durability, abrasion and optical appearance
publisher	University of Zagreb, Faculty of Forestry and Wood Technology
publishDate	2009
url	https://doaj.org/article/9e335b8c8d4a40bebce2ed2cdb5e8cb8
work_keys_str_mv	AT christianrwelzbacher performanceofthermallymodifiedtimbertmtinoutdoorapplicationdurabilityabrasionandopticalappearance AT christianbrischke performanceofthermallymodifiedtimbertmtinoutdoorapplicationdurabilityabrasionandopticalappearance AT andreasorapp performanceofthermallymodifiedtimbertmtinoutdoorapplicationdurabilityabrasionandopticalappearance AT silviakoch performanceofthermallymodifiedtimbertmtinoutdoorapplicationdurabilityabrasionandopticalappearance AT sabinehofer performanceofthermallymodifiedtimbertmtinoutdoorapplicationdurabilityabrasionandopticalappearance
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Performance of thermally modified timber (TMT) in outdoor application – durability, abrasion and optical appearance

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