The effect of wood and solution temperatures on the preservative uptake of Pannonia poplar and common spruce – preliminary research

Buga-Kovács, Luca és Horváth, Norbert (2024) The effect of wood and solution temperatures on the preservative uptake of Pannonia poplar and common spruce – preliminary research. In: 11TH HARDWOOD CONFERENCE PROCEEDINGS : Sopron, Hungary, 30-31 May 2024. Hardwood conference proceedings . Soproni Egyetem Kiadó, Sopron, pp. 325-328. ISBN 9789633345184

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Absztrakt (kivonat)

Our research aimed to compare the effect of wood and solution temperatures on the preservative uptake of Pannonia poplar and common spruce. The choice of the wood species was motivated by the followings. Poplar trees are less used wood species in the Hungarian construction industry. Some hybrids have similar characteristics to the commonly used spruce. Among them, the properties of the hybrid Hungarian Pannonia poplar are the focus of much research nowadays, because a significant amount of Hungarian Pannonia poplar trees are maturing to cutting age. Imported spruce is a common structural timber used in the Hungarian construction industry. According to CEN EN 14734, a copper sulphate solution was used to evaluate the prolonged immersion treatment. The temperature of the wood samples was 20 °C for both tests. The temperature of the copper sulphate solution in the control test was the same as that of the wood materials at 20 °C, while in the other test the materials were soaked in a solution at 12 °C. The preservative uptake graph, the mass of the copper sulphate solution taken up and the calculated mass of copper-sulphate after 3 hours of prolonged immersion were determined. We found that Pannonia poplar can take up more solution than spruce. For both species, the uptake of preservative at the initial stage was higher for the 12 °C solution than for the room temperature solution.

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műszaki tudományok > anyagtudományok és technológiák
műszaki tudományok > bio-, környezet- és vegyészmérnöki tudományok
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