Abstract
OSB panels were manufactured with a mixture of pine and cypress heartwood and lignin and tannin based resins in order to propose an eco-friendly wood composite. The resistance of OSB panels against Reticulitermes santonensis was tested according to EN 118 and EN 117 as well as in a field test. OSB made from cypress showed more resistance against the tested termite, the resistance decreased as the percentage of pine increased. The degree of attack differed according to the choice of standard procedure. The field test results revealed that in outdoor conditions and when the termites had a feeding choice, all mixtures showed the same behaviour. The decay resistance was assessed according to EN 12038, and the results revealed that the resistance increases when the percentage of cypress increases.
Zusammenfassung
Aus einer Mischung aus Kiefern- und Zypressenkernholz sowie Harzen auf Lignin- und Tanninbasis wurden OSB-Platten als umweltfreundlicher Holzwerkstoff hergestellt. Die Resistenz dieser OSB-Platten gegen Reticulitermes santonensis wurde gemäß EN 118 und EN 117 sowie in einem Feldversuch untersucht. Aus Zypressenholz hergestellte OSB-Platten wiesen eine höhere Resistenz gegen diese Termitenart auf. Diese nahm mit zunehmendem Kiefernholzanteil ab. Dabei hing die Höhe des Befalls vom gewählten Prüfverfahren ab. Die Ergebnisse des Feldversuchs zeigten, dass sich alle Mischungen unter Freilandbedingungen bei gegebenem Termitenbefall gleich verhielten. Die Resistenz wurde darüber hinaus gemäß EN 12038 bestimmt. Dabei zeigten die Ergebnisse, dass die Resistenz mit zunehmendem Anteil an Zypressenholz zunimmt.
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Amusant, N., Arnould, O., Pizzi, A. et al. Biological properties of an OSB eco-product manufactured from a mixture of durable and non durable species and natural resins . Eur. J. Wood Prod. 67, 439–447 (2009). https://doi.org/10.1007/s00107-009-0335-z
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DOI: https://doi.org/10.1007/s00107-009-0335-z