Abstract
The results of recent investigations revealed that the atmospheric corrosion (weathering) of micro-sections from spruce was dependent on the season. This was substantiated by the reduction in tensile strength parallel to the grain amounting from 30% in the micro-sections subjected to atmospheric corrosion in April to about 70% in those exposed in July. The decisive factor for the atmospheric corrosion in summer is the intensity of solar radiation, while in winter the increased amount of sulphur dioxide in the surrounding air is the main factor.
Zusammenfassung
Die atmosphärisch bedinge Korrosion (Bewitterung) von Fichten-Mikroschmitten ist von der Jahreszeit abhängig. Diese Abhängigkeit zeigt sich in einer Verminderung der Zugfestigkeit in Faserrichtung von etwa 30% im April bis etwa 70% im Juli an Proben, die einer atmosphärischen Einwirkung ausgesetzt worden waren. Ausschlaggebender Faktor in den Sommermonaten ist die Intensität der Sonnenbestrahlung, in den Wintermonaten der erhöhte Schwefeldioxydgehalt der Luft.
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Vortrag anläßlich der 15. Internationalen Holzschutztagung der DGfH in Kiel 1979
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Raczkowski, J. Seasonal effects on the atmospheric corrosion of spruce micro-sections. Holz als Roh-und Werkstoff 38, 231–234 (1980). https://doi.org/10.1007/BF02607398
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DOI: https://doi.org/10.1007/BF02607398