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Wood Science and Technology

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28-11-2018 | Original

Density and density profile changes in birch and spruce caused by thermo-hydro treatment measured by X-ray computed tomography

Authors: Vladimirs Biziks, Joris Van Acker, Holger Militz, Juris Grinins, Jan Van den Bulcke

Published in: Wood Science and Technology | Issue 2/2019

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Abstract

Birch and spruce samples were scanned using X-ray computed tomography (CT) to determine changes in the density and density profile caused by thermo-hydro treatment (THT). Small-dimension wood blocks were subjected to treatment at three different temperatures (160 °C, 170 °C and 180 °C) for 1 h and scanned before and after treatment. Identical acquisition and analysis procedures were used to evaluate the changes in approximate mean density and radial density profile of oven-dried untreated and treated material. The X-ray CT scans enabled measuring of the changes in wood density after THT. The results confirm that there were similar tendencies in the total density decrease with increasing temperature. However, variations in density changes between the earlywood (EW) and latewood (LW) of birch and spruce were found. A correlation of the radial density profiles of treated versus untreated specimens showed a similar density decrease in EW and LW in birch wood and inconsistent reductions in spruce wood.

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Altgen M, Willems W, Militz H (2016) Wood degradation affected by process conditions during thermal modification of European beech in a high pressure reactor system. Eur J Wood Prod 74(5):653–662CrossRef

Biziks V, Andersons B, Sansonetti E, Andersone I, Militz H, Grinins J (2015) One-stage thermos-hydro treatment (THT) of hardwoods: an analysis of form stability after five soaking-drying cycles. Holzforschung 69(5):563–573CrossRef

Boone M, De Witte Y, Dierick M, Van den Bulcke J, Vlassenbroeck J, Van Hoorebeke L (2009) Practical use of the modified Bronnikov algorithm in micro-CT. Nucl. Instrum. Methods Phys. Res Sect B Beam Interact Mater At 267:1182–1186

Boonstra MJ, Van Acker J, Tjeerdsma BF, Kegel EV (2007) Strength properties of thermally modified softwoods and its relation to polymeric structural wood constituents. Ann Sci 64(7):679–690CrossRef

Bouriaud O, Leban JK, Bert D, Deleuze C (2005) Intra-annual variations in climate influence growth and wood density of Norway spruce. Tree Physiol 256(6):651–660CrossRef

Brabant L, Vlassenbroeck J, De Witte Y, Cnudde V, Boone MN, Dewanckele J, Van Hoorebeke L (2011) Three-dimensional analysis of high-resolution X-ray computed tomography data with Morpho+. Microsc Microanal 17:252–263CrossRefPubMed

Cuny EH, Rathgeber CBK, Frank D, Fonti P, Fournier M (2014) Kinetics of tracheid development, explain conifer tree-ring structure. New Phytol 203(4):1231–1241CrossRefPubMed

De Ridder M, Van den Bulcke J, Vansteenkiste D, Van Loo D, Dierick M, Masschaele B, De Witte Y, Mannes D, Lehmann E, Beeckman H, Van Hoorebeke L, Van Acker J (2011) High-resolution proxies for wood density variations in Terminalia superba. Ann Bot 107(2):293–302CrossRefPubMed

De Witte Y, Boone M, Vlassenbroeck J, Dierick M, Van Hoorebeke L (2009) Bronnikov-aided correction for X-ray computed tomography. J Opt Soc Am A Opt Image Sci Vis 26:890–894CrossRefPubMed

Dierick M, Van Loo D, Masschaele B, Boone M, Van Hoorebeke L (2010) A LabVIEW^® based generic CT scanner control software platform. J X-ray Sci Technol 18:451–461

Dierick M, Van Loo D, Masschaele B, Van den Bulcke J, Van Acker J, Cnudde V, Van Hoorebeke L (2014) Recent scanner developments at UGCT. Nucl Instrum Methods Phys Res Sect B Beam Interact Mater At 324:35–40CrossRef

Dietrichs HH, Sinner H, Puls J (1978) Potential of steaming hardwoods and straw for feed and food production. Holzforschung 32:193–199CrossRef

Freyburger C, Longuetaud F, Mothe F, Constant T, Leban JM (2009) Measuring wood density by means of X-ray computed tomography. Ann Forest Sci 66:804 (p:1–9) CrossRef

Fritts HC (2001) Tree rings and climate. The Blackburn Press, London

Gilmore AR, Metcalf GE, Boggess WR (1959) Specific gravity of shortleaf pine and loblolly pine in southern Illinois. J For 59:894–896

González-Peña MM, Curling SF, Hale MDC (2009) On the effect of heat on the chemical composition and dimensions of thermally-modified wood. Polym Degrad Stabil 94:2184–2193CrossRef

Grinins J, Andersons B, Biziks V, Andersone I, Dobele G (2013) Analytical pyrolysis as an instrument to study the chemical transformations of hydrothermally modified wood. J Anal Appl Pyrol 103:36–41CrossRef

Guilley E, Herve JC, Nepveu G (2004) The influence of site quality, silviculture and region on wood density mixed model in Quercus petraea Liebl. For Ecol Manag 189:111–121CrossRef

Hamada J, Pétrissans A, Mothe F, Pétrissans M, Gerardin P (2017) Intraspecific variation of European oak wood thermal stability according to radial position. Wood Sci Technol 51:785–794CrossRef

Izekor DN, Fuwape JA, Oluyege AO (2010) Effects of density on variations in the mechanical properties of plantation grown Tectona grandis wood. Arch Appl Sci Res 2(6):113–120

Klüppel A, Mai C (2013) The influence of curing conditions on the chemical distribution in wood modified with thermosetting resins. Wood Sci Technol 47:643–658CrossRef

Lindgren LO (1991) The accuracy of medical CAT-scan images for non-destructive density measurements in small volume elements within solid wood. Wood Sci Technol 25:425–432

Mantanis GI, Young RA, Rowell RM (1994) Part I. Swelling of wood. Wood Sci Technol 28:119–134CrossRef

Meincken M, du Plessis A (2013) Visualising and quantifying thermal degradation of wood by computed tomography. Eur J Wood Prod 71:387–389CrossRef

Mull RT (1984) Mass estimates by computed tomography: physical density from CT numbers. Am J Roentgenol 143:1101–1104CrossRef

Niemz P (1993) Physik des Holzes und der Holzwerkstoffe (Physics of wood and wood-based products) (in German). DRW-Verlag, Leinfelden-Echterdingen

Pang S (2002) Predicting anisotropic shrinkage of soft wood. Part 1: theories. Wood Sci Technol 36:75–91CrossRef

Quirk JT (1984) Shrinkage and related properties of Douglas-fir cell walls. Wood Fiber Sci 16:115–133

Rathgeber CBK, Decoux V, Leban JM (2006) Linking intra-tree ring wood density variations and tracheid anatomical characteristics in Douglas fir (Pseudotsuga menziesii (Mirb.) Franco). Ann For Sci 63:699–706CrossRef

Rautkari L, Kutnar A, Hughes M, Kamke F (2010) Wood surface densification using different methods. In: 11th World conference on timber engineering, Riva del Garda, Italia, 20–24 June 2010, pp 647–648

Sedighi-Gilani M, Boone NM, Mader K, Schwarze FWMR (2014) Synchotron X-ray macro-tomography imaging and analysis of wood degraded by Physisporinus vitreus and Xylaria longipes. J Struct Biol 187:149–157CrossRefPubMed

Shchupakivskyy R, Clauder L, Linke N, Pfriem A (2014) Application of high-frequency densitometry to detect changes in early- and latewood density of oak (Quercus robur L.) due to thermal modification. Eur J Wood Prod 72(1):5–10CrossRef

Steffenrem A, Kvaalen H, Sigm K, Høibø D, Høibø O (2014) A high throughput X-ray based method for measurements of relative wood density from unprepared increment cores from Piceas abies. Scand J For Res 29(5):506–514CrossRef

Vlassenbroeck J, Dierick M, Masschaele B, Cnudde V, Van Hoorebeke L, Jacobs P (2007) Software tools for quantification of X-ray microtomography at the UGCT. Nucl Instrum Methods Phys Res A 580:442–445CrossRef

Wong AHH, Wilkes J, Heather WA (1983) Influence of wood density and extractive content on the decay of the heartwood of Eucalyptus delegatensis R.T. Baker. J Inst Wood Sci 54:261–263

Yildiz S, Gezer D, Yildiz U (2006) Mechanical and chemical behavior of spruce wood modified by heat. Build Environ 41:1762–1766CrossRef

Title: Density and density profile changes in birch and spruce caused by thermo-hydro treatment measured by X-ray computed tomography
Authors: Vladimirs Biziks
Joris Van Acker
Holger Militz
Juris Grinins
Jan Van den Bulcke
Publication date: 28-11-2018
Publisher: Springer Berlin Heidelberg
Published in: Wood Science and Technology / Issue 2/2019
Print ISSN: 0043-7719
Electronic ISSN: 1432-5225
DOI: https://doi.org/10.1007/s00226-018-1070-6

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