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dc.contributor.author
Sedighi-Gilani, Marjan
dc.contributor.author
Vontobel, Peter
dc.contributor.author
Lehmann, Eberhard
dc.contributor.author
Carmeliet, Jan
dc.contributor.author
Derome, Dominique
dc.date.accessioned
2021-05-07T13:08:21Z
dc.date.available
2017-06-11T00:19:24Z
dc.date.available
2019-04-12T09:05:22Z
dc.date.available
2021-05-07T11:39:41Z
dc.date.available
2021-05-07T13:08:21Z
dc.date.issued
2014-06
dc.identifier.issn
1359-5997
dc.identifier.issn
0025-5432
dc.identifier.issn
1871-6873
dc.identifier.other
10.1617/s11527-013-0112-7
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/74922
dc.identifier.doi
10.3929/ethz-b-000074922
dc.description.abstract
Non-destructive neutron radiography is used to study the different processes of liquid transport in Scots pine sapwood and heartwood. The spatial and temporal changes in moisture content and saturation degree, measured at high resolution, are provided for water uptake in longitudinal, radial and tangential directions. Liquid uptake in sapwood, compared to in heartwood, is found to be faster and more homogeneous. Latewood cells are the preferential pathways for longitudinal and tangential uptake in both sapwood and heartwood resulting in strongly non-uniform water fronts. In radial uptake, water accumulates first in the border between growth layers. While the moisture content profiles vary strongly between earlywood and latewood layers, the corresponding swelling strain profiles change smoothly due to the mechanical interaction between the different layers. Long term experiments in laboratory show three phases of uptake: a first fast phase, a second slower phase and a third phase reaching capillary saturation. The main difference between sapwood and heartwood uptake takes place in the first phase when liquid is mainly transported in the lumen, until moisture reaches the top of the sample. After that, both wood types behave similarly, uptake is followed by a slower adsorption in the wood cell walls and liquid redistribution in perpendicular to the uptake direction until the sample is almost totally saturated. These findings are of interest for future studies on durability and treatability of pine sapwood and hardwood.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
Neutron radiography
en_US
dc.subject
Water uptake
en_US
dc.subject
Saturation
en_US
dc.subject
Sapwood and heartwood
en_US
dc.subject
Swelling
en_US
dc.subject
Durability
en_US
dc.title
Liquid uptake in Scots pine sapwood and hardwood visualized and quantified by neutron radiography
en_US
dc.type
Journal Article
dc.rights.license
In Copyright - Non-Commercial Use Permitted
dc.date.published
2013-06-21
ethz.journal.title
Materials and Structures
ethz.journal.volume
47
en_US
ethz.journal.issue
6
en_US
ethz.journal.abbreviated
Mat. struct.
ethz.pages.start
1083
en_US
ethz.pages.end
1096
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Dordrecht
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::03806 - Carmeliet, Jan / Carmeliet, Jan
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::03806 - Carmeliet, Jan / Carmeliet, Jan
ethz.date.deposited
2017-06-11T00:20:03Z
ethz.source
ECIT
ethz.identifier.importid
imp59365138c4ec946411
ethz.ecitpid
pub:118382
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-31T16:46:01Z
ethz.rosetta.lastUpdated
2019-04-12T09:05:48Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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