VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Some properties of waterlogged arheological wood from prehistoric pile dwellings
    Čufar, Katarina ; Tišler, Vesna, 1947- ; Gorišek, Željko
    Basic physical and chemical properties of buried archaeological waterlogged wood were studied to define the degree of deterioration for future planning of proper conservation treatment. The wood of ... oak (Quercus sp.), alder (Alnus glutinosa), beech (Fagus sylvatica), and ash (Fraxinus sp.) was selected from 5 prehistoric pile dwellings in the Ljubljana Moor, Slovenia. The samples from 3rd and from 4th millennium BC were buried in the soil or preserved underwater. Moisture content above 400% and a drastic decrease in basic density indicated a very high degree of wood deterioration. Equilibrium moisture content in all hygroscopic range was much higher than that in recent wood. Chemical analyses of ash-wood have shown a drastically increased amount of lignin and a reduced amount of cellulose and hemicelluloses. Hot water extract was significantly lower and sodium hydroxide extract significantly higher than those of recent wood.
    Vir: Proceedings of the Fifth International Conference on the Development of Wood Science, Wood Technology and Forestry, ICWSF 2001, 5th - 7th September 2001, Ljubljana, Slovenia (Str. 25-31)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2001
    Jezik - angleški
    COBISS.SI-ID - 802185

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