Thermal stability of Abies alba wood according to its radial position and forest management

Autor: Joël Hamada, Mathieu Pétrissans, Philippe Gérardin, Francis Colin, Anélie Pétrissans, Julien Ruelle, Frédéric Mothe
Přispěvatelé: Laboratoire d'Etude et de Recherche sur le Matériau Bois (LERMAB), Université de Lorraine (UL), SILVA (SILVA), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL)-AgroParisTech, Institut National de la Recherche Agronomique (INRA)-AgroParisTech-Université de Lorraine (UL)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
0106 biological sciences
sapwood
Thermogravimetric analysis
Kiln
bois tardif
Forest management
bois de résineux
01 natural sciences
aubier
thermal stability
stabilité thermique
010608 biotechnology
[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]
General Materials Science
Thermal stability
propriété physique
abies alba
040101 forestry
biology
Forestry
04 agricultural and veterinary sciences
Interspecific competition
15. Life on land
biology.organism_classification
Pulp and paper industry
dégradation thermique
Abies alba
bois de cœur
softwood
visual_art
bois de printemps
visual_art.visual_art_medium
0401 agriculture
forestry
and fisheries
Environmental science
Degradation (geology)
variabilité intraspécifique
Sawdust
heartwood
Zdroj: European Journal of Wood and Wood Products
European Journal of Wood and Wood Products, Springer Verlag, 2018, 76 (6), pp.1669-1676. ⟨10.1007/s00107-018-1353-5⟩
ISSN: 0018-3768
1436-736X
DOI: 10.1007/s00107-018-1353-5⟩
Popis: Most of the defects affecting heat-treated wood quality are often attributed to heterogeneous heat transfers in industrial kilns. Even if interspecific variability of wood has been reported to affect thermal degradation of the material, little has been reported on the effects of intraspecific variability. The aim of this work was to study the effect of intraspecific variability of silver fir (Abies alba Mill.) wood on its thermal degradation. For this purpose, wood samples were sampled along the radius of cross-sections to estimate the effect of radial position on wood thermal degradation. Sampling was carried out on discs of four trees, two resulting from dynamic growth stand and two from standard growth stand. The study was performed at different scales: at wood compartments scale involving juvenile and mature heartwood, transition zone between heartwood and sapwood and sapwood as well as at intra-ring scale. Wood samples were ground to sawdust and subjected to thermogravimetric analysis and chemical analysis. Juvenile heartwood was shown to be more sensitive to thermal degradation than other compartments. The thermal behavior of sapwood was not particularly different from that of heartwood, and the presence of extractives did not influence significantly thermal degradation. Earlywood was more sensitive to thermal degradation than latewood explaining the higher susceptibility of fast growing heartwood containing larger rings with higher contents of earlywood.
Databáze: OpenAIRE
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