Sorption and capillary condensation in wood and the moisture content of red pine

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DOIResolve DOI: http://doi.org/10.1177/1744259112453829
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TypeArticle
Journal titleJournal of Building Physics
ISSN1744-2591
Volume37
Issue4
Pages327347; # of pages: 21
SubjectAtmospheric humidity; Digital storage; Microstructure; Moisture; Sorption; Testing; Vapors; Equilibrium moisture contents; High relative humidities; Hygrothermal; Moisture storage; Pressure plate methods; Red pines; Moisture determination; Humidity; Microstructure; Moisture Content; Wood Products
AbstractThe major purpose of this study is to improve hygrothermal simulation of wood responses to environmental vapor and moisture conditions under high relative humidity conditions. The article first reviews moisture property-related wood microstructures, sorption behavior, the concept of fiber saturation point, the potential for vapor to condense in wood under high relative humidity conditions, the measurement of equilibrium moisture content using traditional sorption methods, and the use of pressure plate test method at relative humidities above 95%. It then summarizes the results of equilibrium moisture content measurements for red pine sapwood at high relative humidity conditions using both sorption and pressure plate methods, with capillary saturation as maximum moisture content. It also discusses a number of wood microstructure and end-use-related factors that could influence the moisture content in service and the measurement of equilibrium moisture content in laboratory. Inconsistencies were found with other equilibrium moisture content data using the pressure plate test method.
Publication date
PublisherSAGE Publications
LanguageEnglish
AffiliationNational Research Council Canada; Construction
Peer reviewedYes
NPARC number21272733
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Record identifier21bfa5c9-0527-42a9-ba6e-9ccd0a92d761
Record created2014-12-03
Record modified2017-04-05
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