End grain water absorption and redistribution in slow-grown and fast-grown Norway spruce (Picea abies (L.) Karst.) heartwood and sapwood
Fredriksson, Maria LU
and Lindgren, Owe
(2013)
In Wood Material Science & Engineering
8(4).
p.245-252
- Abstract
- Wood is susceptible to decay by rot fungi if it is exposed to high-moisture contents during long periods of time and it is therefore important to limit the duration of such periods. Critical points in outdoor wood structures are, for example, end grain surfaces in joints where water can get trapped after a rain. It is therefore of interest to study both absorption and redistribution of moisture in wood. This paper presents moisture content profiles during end grain water absorption and redistribution in Norway spruce (Picea abies (L.) Karst.) measured by computed tomography with the specimens in individual climate boxes. Heartwood and sapwood of two provenances (slow-grown and fastgrown wood) were included. No major differences were seen... (More)
- Wood is susceptible to decay by rot fungi if it is exposed to high-moisture contents during long periods of time and it is therefore important to limit the duration of such periods. Critical points in outdoor wood structures are, for example, end grain surfaces in joints where water can get trapped after a rain. It is therefore of interest to study both absorption and redistribution of moisture in wood. This paper presents moisture content profiles during end grain water absorption and redistribution in Norway spruce (Picea abies (L.) Karst.) measured by computed tomography with the specimens in individual climate boxes. Heartwood and sapwood of two provenances (slow-grown and fastgrown wood) were included. No major differences were seen between the water uptake of the slow-grown and the fast-grown wood since the densities were similar despite of the large difference in growth ring width. However, for the sapwood specimens, the moisture content was higher further into the specimens than for the heartwood specimens in agreement with previous studies. For the slow-grown wood, the redistribution was also generally more rapid for the sapwood specimens than for the heartwood specimens. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4145717
- author
- Fredriksson, Maria
LU
and Lindgren, Owe
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- computed tomography, CT, water absorption, moisture, redistribution, Norway spruce, heartwood, growth ring width
- in
- Wood Material Science & Engineering
- volume
- 8
- issue
- 4
- pages
- 245 - 252
- publisher
- Taylor & Francis
- external identifiers
-
- scopus:84887136112
- ISSN
- 1748-0272
- DOI
- 10.1080/17480272.2013.847492
- language
- English
- LU publication?
- yes
- id
- 1fd999ca-d123-4a97-86fc-81388b09d6fe (old id 4145717)
- date added to LUP
- 2016-04-01 09:57:03
- date last changed
- 2022-03-19 07:58:37
@article{1fd999ca-d123-4a97-86fc-81388b09d6fe,
abstract = {{Wood is susceptible to decay by rot fungi if it is exposed to high-moisture contents during long periods of time and it is therefore important to limit the duration of such periods. Critical points in outdoor wood structures are, for example, end grain surfaces in joints where water can get trapped after a rain. It is therefore of interest to study both absorption and redistribution of moisture in wood. This paper presents moisture content profiles during end grain water absorption and redistribution in Norway spruce (Picea abies (L.) Karst.) measured by computed tomography with the specimens in individual climate boxes. Heartwood and sapwood of two provenances (slow-grown and fastgrown wood) were included. No major differences were seen between the water uptake of the slow-grown and the fast-grown wood since the densities were similar despite of the large difference in growth ring width. However, for the sapwood specimens, the moisture content was higher further into the specimens than for the heartwood specimens in agreement with previous studies. For the slow-grown wood, the redistribution was also generally more rapid for the sapwood specimens than for the heartwood specimens.}},
author = {{Fredriksson, Maria and Lindgren, Owe}},
issn = {{1748-0272}},
keywords = {{computed tomography; CT; water absorption; moisture; redistribution; Norway spruce; heartwood; growth ring width}},
language = {{eng}},
number = {{4}},
pages = {{245--252}},
publisher = {{Taylor & Francis}},
series = {{Wood Material Science & Engineering}},
title = {{End grain water absorption and redistribution in slow-grown and fast-grown Norway spruce (Picea abies (L.) Karst.) heartwood and sapwood}},
url = {{http://dx.doi.org/10.1080/17480272.2013.847492}},
doi = {{10.1080/17480272.2013.847492}},
volume = {{8}},
year = {{2013}},
}