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Response of hygroscopicity to heat treatment and its relation to durability of thermally modified wood
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Materials.
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2017 (English)In: Construction and Building Materials, ISSN 0950-0618, E-ISSN 1879-0526, Vol. 144, 671-676 p.Article in journal (Refereed) Published
Abstract [en]

In an attempt to study the effect of heat treatment on hygroscopicity and durability of wood, Poplar (Populus spp.) wood was thermally modified using five different temperatures between 170 degrees C and 210 degrees C, for a fixed duration of 3 h. Moisture adsorption behavior and the resistance to soft rot fungi were investigated thereafter. Based on the Hailwood-Horrobin sorption model, the amount of available sorption sites within specimens for the different groups of Poplar wood were calculated from the model's m(0) parameter. Chemical analysis of the changes in wood components induced by heat treatment allows for a comparison between the easily obtained m(0) and the results of time-consuming wood decay tests. The proposed m(0)-based method for highly efficient evaluation and prediction of durability of thermally modified wood could optimize future research on the mechanisms of heat treatment processes.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 144, 671-676 p.
Keyword [en]
Poplar wood, Heat treatment process, Hygroscopicity, Durability, Hailwood-Horrobin model
National Category
Composite Science and Engineering
Identifiers
URN: urn:nbn:se:kth:diva-208775DOI: 10.1016/j.conbuildmat.2017.03.218ISI: 000401385800067ScopusID: 2-s2.0-85017167689OAI: oai:DiVA.org:kth-208775DiVA: diva2:1110016
Note

QC 20170615

Available from: 2017-06-15 Created: 2017-06-15 Last updated: 2017-06-15Bibliographically approved

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CiteExportLink to record
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Citation style
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