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Optimization of the bi-oleothermal treatment process for wood preservation and fireproofing

Simon Frédéric, Kutnik Magdalena, Goyer Morgan, Thévenon Marie-France, Alfos Carine, Céron Mathieu. 2011. Optimization of the bi-oleothermal treatment process for wood preservation and fireproofing. In : The International Research Group on Wood Protection 42th Annual Meeting: Section 4 Processes and Properties, Queenstown, New Zealand, 8-12 May 2011. s.l. : s.n., 18 p. The International Research Group on Wood Protection Annual Meeting. 42, Queenstown, Nouvelle-Zélande, 8 May 2011/12 May 2011.

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Abstract : The bi-oleothermal© process (combination of oil and heat treatment) is a well mastered alternative method for wood protection. However, the fire behavior and resistance to decay of bi-oleothermally treated wood are not good enough to ensure performance which meets the service standards for outdoor applications such as cladding or decking expected by the market. The aim of the present research project has been to improve this performance by optimizing the linseed oil formulations used at the impregnation stage. Different formulations combining linseed oil, fungicides, insecticides and/or fire retardants were tested under laboratory conditions in order to assess the resistance of oil-treated wood to molds, decay fungi, longhorn beetles, subterranean termites and fire. The results showed that the investigated biological organisms exhibit different levels of susceptibility to oil based formulations. Additionally, the collected data suggested that some inhibition processes might occur between the oil and the active ingredients, lowering the biocide effect of the final formulation. Subsequently, chemical analyses were performed in order to identify the active ingredients both in the oil formulations used for the second bath and inside the treated wood. The measured concentrations of active ingredients were then compared to the expected target values to determine the possible fate of the biocides in the oil formulations (degradation, migration into wood, interaction between the different components). (Résumé d'auteur)

Mots-clés Agrovoc : Préservation du bois, Bois, Incendie de forêt, Traitement thermique, Huile de lin, Fagus sylvatica, Pinus sylvestris

Mots-clés complémentaires : Feu

Classification Agris : K50 - Processing of forest products
J12 - Handling, transport, storage and protection of forest products

Auteurs et affiliations

  • Simon Frédéric, Institut technologique forêt, cellulose, bois, ameublement (FRA)
  • Kutnik Magdalena, Institut technologique forêt, cellulose, bois, ameublement (FRA)
  • Goyer Morgan, Institut technologique forêt, cellulose, bois, ameublement (FRA)
  • Thévenon Marie-France, CIRAD-PERSYST-UPR Bois tropicaux (FRA)
  • Alfos Carine, ITERG (FRA)
  • Céron Mathieu, ITERG (FRA)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/561725/)

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