Physical properties and termite durability of maritime pine Pinus pinaster Ait., heat-treated under vacuum pressure

Abstract : An original heat treatment performed under vacuum pressure was investigated. Maritime pine samples were treated at six different temperatures: 140, 160, 180, 200, 230 and 260A degrees C. The physical and mechanical consequences, i.e. bending strength (MOR), modulus of elasticity (MOE), hygroscopic behaviour, equilibrium moisture contents and anti-swelling efficiency (ASE) were studied. A no-choice feeding test according to the NF EN 117 standard was achieved. Temperatures up to 200A degrees C had no significant effect on wood properties. However, at 230 and 260A degrees C, the decrease in MOR was severe, reaching 42.5 and 62.5%, respectively. Whatever the treatment conditions, wood samples were still highly degraded by termites, revealing no increase in their durability.
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Submitted on : Wednesday, October 31, 2012 - 6:55:54 PM
Last modification on : Monday, May 6, 2019 - 10:37:44 AM

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Thibaud Surini, Fatima Charrier, Jérôme Malvestio, Bertrand Charrier, Amine Moubarik, et al.. Physical properties and termite durability of maritime pine Pinus pinaster Ait., heat-treated under vacuum pressure. Wood Science and Technology, Springer Verlag, 2012, 46 (1-3), pp.487-501. ⟨10.1007/s00226-011-0421-3⟩. ⟨hal-00747658⟩

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