iForest - Biogeosciences and Forestry


Influence of thermo-vacuum treatment on bending properties of poplar rotary-cut veneer

Gaetano Castro (1)   , Laura Rosso (1), Ottaviano Allegretti (2), Ignazia Cuccui (2), Corrado Cremonini (3), Francesco Negro (3), Roberto Zanuttini (3)

iForest - Biogeosciences and Forestry, Volume 10, Issue 1, Pages 161-163 (2016)
doi: https://doi.org/10.3832/ifor1955-009
Published: Jun 13, 2016 - Copyright © 2016 SISEF

Short Communications

The present paper investigates the influence of thermo-vacuum treatment at 170, 190 and 210 °C on the mechanical and physical properties of poplar wood rotary-cut veneers obtained from two different poplar clones (’I-214’ and ’Lena’). The modulus of rupture in bending was determined according to a method derived from European Standard EN-310 and previously validated by the authors, while the density was determined on the basis of EN-323. With both clones no significant decrease was recorded either in bending strength or in density with treatment temperatures up to 190 °C. On the contrary, at 210 °C a highly significant decrease in modulus of rupture (’I-214’: -18%; ’Lena’: -15%) was recorded; the density showed a similar, though lower, trend (’I-214’: -5 %; ’Lena’: -8.5 %).


Populus, Poplar Wood, Veneer, Thermal treatment, Bending Strength

Authors’ address

Gaetano Castro
Laura Rosso
C.R.E.A. - Unità di Ricerca per le Produzioni Legnose fuori Foresta, Casale Monferrato, AL (Italy)
Ottaviano Allegretti
Ignazia Cuccui
Università degli Studi di Torino, DISAFA,Torino (Italy)
Corrado Cremonini
Francesco Negro
Roberto Zanuttini
C.N.R. IVALSA, S. Michele all’Adige, TN (Italy)

Corresponding author



Castro G, Rosso L, Allegretti O, Cuccui I, Cremonini C, Negro F, Zanuttini R (2016). Influence of thermo-vacuum treatment on bending properties of poplar rotary-cut veneer. iForest 10: 161-163. - doi: 10.3832/ifor1955-009

Academic Editor

Giacomo Goli

Paper history

Received: Dec 17, 2015
Accepted: Feb 24, 2016

First online: Jun 13, 2016
Publication Date: Feb 28, 2017
Publication Time: 3.67 months

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Allegretti O, Brunetti M, Cuccui I, Ferrari S, Nocetti M, Terziev N (2012)
Thermo-vacuum modification of spruce (Picea abies Karst.) and fir (Abies alba Mill.) wood. Bioresources 7 (3): 3659-3669.
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Effect of high temperature on the change in color, dimensional stability and mechanical properties of spruce wood. Holzforschung 57 (5): 539-546.
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Castro G, Berti S, Pisano M (2014)
Preliminary study on the variation of the bending properties of poplar rotary-cut veneer. European Journal of Wood and Wood Products 72 (6): 837-839.
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EN-310 (1994)
Wood based panels. Determination of modulus of elasticity in bending and bending strength. CEN, European Committee for Standardization, Brussels, Belgium, pp. 9.
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EN-323 (1994)
Wood based panels. Determination of density. CEN, European Committee for Standardization, Brussels, Belgium, pp. 4.
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