- Tytuł:
-
Charakterystyka techniczna drewna limby syberyjskiej (Pinus sibirica Du Tour.)
Characteristic technical properties of Siberian yellow pine (Pinus sibirica Du Tour.) wood - Autorzy:
-
Jankowska, A.
Anders, B.
Mastyna, B. - Powiązania:
- https://bibliotekanauki.pl/articles/986686.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polskie Towarzystwo Leśne
- Tematy:
-
lesnictwo
drzewnictwo
limba syberyjska
Pinus sibirica
drewno limbowe
charakterystyka techniczna
wlasciwosci mechaniczne
wlasciwosci fizyczne
anatomia drewna
odpornosc na biodegradacje
siberian yellow pine
mechanical and physical properties
brown rot fungus
wood anatomy - Opis:
- Siberian yellow pine (Pinus sibirica Du Tour.) has increasingly appeared in the merchant offers on the market of raw wood materials in Poland. However, the knowledge of the technical characteristics of its wood is still insufficient for it is based primarily on the data and experiences from abroad, often from the literature of the former USSR. The main aim of this study was to determine selected physical and mechanical properties of Siberian yellow pine wood such as linear and volumetric shrinkage, compressive strength along the fibers, the tensile strength along the fibers, the tensile strength across the fibers, static bending and modulus of elasticity, flexural dynamic and impact strength, hardness, resistance to splitting and cleavage amd shear strength. Futhermore, the resistance to decay caused by Coniophora puteana (Schum., Fr.) Karst., as well as the examination of the wood structure, assessing the dimensions and arrangement of the structural elements in particular were conducted. The results show that Siberian yellow pine wood has a number of similarities to Scots pine wood in terms of the structure. The wood is very light, with a density of 391 kg/m3 and very soft (Janka hardness on transverse cross section 23 MPa). The mechanical properties of Siberian yellow pine wood are closely related to its density and much lower when compared with Scots pine. Shear strength equalled to 67 MPa, static bending strength – 65 MPa and compression strength along the fibers – 49 MPa. The durability to brown rot fungus of Siberian pine wood is comparable to Scots pine (3rd class according to PN−EN 350−2:2000).
- Źródło:
-
Sylwan; 2017, 161, 09; 756-762
0039-7660 - Pojawia się w:
- Sylwan
- Dostawca treści:
- Biblioteka Nauki
Artykuł