Drvna industrija, Vol. 67 No. 1, 2016.
Izvorni znanstveni članak
https://doi.org/10.5552/drind.2016.1355
Evaluation of Wood Resistance to Artificial Weathering Factors Using Compressive Properties
Agnieszka Jankowska
; Varšavsko sveučilište bioloških znanosti - SGGW, Odjel znanosti o drvu i zaštite drva, Fakultet drvne tehnologije, Varšava, Poljska
Paweł Kozakiewicz
; Varšavsko sveučilište bioloških znanosti - SGGW, Odjel znanosti o drvu i zaštite drva, Fakultet drvne tehnologije, Varšava, Poljska
Sažetak
The purpose of the study was to determine the influence of artificial weathering on selected properties of wood. This paper presents the changes of incompressive strength of wood along fi bers. The study involved wood of different density and anatomy - 17 species of tropical wood commercially available in Europe and Scots pine and European oak. The specimens were exposed to artificial weathering consisting of soaking wood in water, drying at 70 °C and exposure to UV radiation. Three-step aging cycle was repeated 140 times. In general, the tested wood species changed their compressive strength differently under the influence of artificial weathering. The process of artificial weathering caused a loss of strength of all tested wood species. The extent of changes depended on initial properties of wood (especially density) and anatomy. The changes were most pronounced at the beginning of the artificial weathering process.
Ključne riječi
tropical wood; Pinus; Quercus; artificial weathering; artificial aging
Hrčak ID:
154657
URI
Datum izdavanja:
28.3.2016.
Posjeta: 1.929 *