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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Literatur
Barton, K. 1976: Protection against atmospheric corrosion. J. Wiley and Sons. London, New York, Sydney, Toronto
Biblis, E.J. 1970. Effect of thickness of microtome, sections on their tensile properties. Wood and Fiber 2: 19
Borgin, K. 1971. The mechanism of the breakdown of the structure of wood due to environmental factors. J. Inst. Wood Sci. 5(4): 26
Feist, W.C.; Mraz, E.A. 1978. Comparison of outdoor and accelerated weathering of unprotected softwoods. Forest Prod. Jt 28 (3): 38
Flate, D.M. 1976: Properties of paper. Izd. Lesnaja Prom., Moskwa (Russian)
Futo, L.P. 1974: Der photochemische Abbau des Holzes als Präparations-und Analysenmethode. Holz Roh- und Werkstoff 32:303
Greathouse, G.A.; Wessel, C.J. 1954: Deterioration of materials. Reinhold Publ. Corp, New York
Helińska-Raczkowska, L.; Raczkowski, J. 1978: Effect of the density of early and late Douglas fir wood on its properties determined in tests of tension along the grain. Prace Komisji Technol. Drewna PTPN Poznañ. In print (Polish)
ISO/DIS 3129 1975: Wood. Sampling methods and requirements for physical and mechanical tests
Kaneda, H. 1977. Resistance of plywood against weathering. Mokuzai Kogyo 32: 387
Kennedy, R. W.; Ifju, G. 1962: Application of microtensile testing to thin wood sections. Tappi 45: 729
Kimberley, A.E.; Scribner, B.W. 1937: Summary report of National Bureau of Standards. Miscell. Public. M 154. March. In: Greathouse, G.A.; Wessel, C.J. 1954
Klauditz, W., 1952: Zur biologisch-mechanischen Wirkung des Lignins in Stammholz der Nadel- und Laubhölzer Holzforschung 6 (3): 70
Kutzelnigg, A., 1957: Werkst. Korr. 8: 492. In Bartoń, K. 1976
Luckiesh, M; Taylor, A.H.; Kerr, G.P. 1937: Franklin Institute 223: 699. In Greathouse, G.A.; Wessel, C.J. 1954
Manwiller, F.G.; Godfrey, P.R. 1973. Microtensile strength of spruce pine after exposure to acids and bases. Wood Sci. 5: 295
Race, B.J. 1949: Soc. Dyers Colourist 65: 56. In Greathouse, G.A.; Wessel, C.J., 1954
Raczkowski, J. 1978: Natural atmospheric corrosion of microtome wood sections. 10th Symp. on Wood Protection. Rogów 17–19 Oct. (Polish)
Sandermann, W.; Schlumbom, F. 1962: Über die Wirkung gefilterten ultravioletten Lichtes auf Holz. Holz Roh- Werkstoff 20: 243
Sell, J. 1975: Grundsätzliche Anforderungen an Oberflächenbehandlungen für Holz im Außenbau. Holz Roh-Werkstoff 38: 336
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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