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Investigation of round Scots pine wood WC01 class using X-ray computer tomography. Scots pine is the most widespread type of wood in Poland with wide industrial use. The typical starting material used for the production of layered floor elements are logs of WC01 class (class according to the Polish Standard PN-D-95008: 1992 and Order no 72 - GM-900-5 / 2013 of General Director of the State Forests...
Comparison of results between visual and machine strength grading of Polish-grown pine timber (Pinus sylvestris L.) from the Baltic Forestry Region. The paper presents the analysis of results of strength grading of Scots pine wood (Pinus sylvestris L.) with two different methods: visual and machine strength grading, conducted on raw material from the Baltic Forestry Region. Visual strength grading...
Determination of the compressive strength parallel to the grain of resinous yellow pine heartwood. The compressive strength parallel to the grain of resinous yellow pine heartwood was determined as a part of this study. The interdependencies between the load and deflection of yellow pine under compression test were established. The average density of resinous yellow pine wood in an air-dry condition...
Correlation between the share of latewood and the density of sawn timber from the Silesian Forestry Region. The paper describes the results of density measurements and the share of latewood in pine wood samples (Pinus sylvestris L.) from the Silesian Forestry Region in Poland. The samples were obtained from sawn timber from different kinds of log: butt, middle and top. The place from which the timber...
This paper presents the results of tests of compression strength parallel to the grain, conducted on pine wood (Pinus sylvestris L.) samples from various Polish forestry regions, exposed to the Coniophora puteana fungus. According to the test results, the resistance of wood to the fungus varies only slightly depending on its place of origin. Exposure to the tested fungus caused a reduction of density...
Comparison results of visual and machine strength grading of Scots pine sawn timber from the Silesian Forestry Region in Poland. The paper presents an analysis of the strength grading results performed by two methods – visual (appearance) and machine, carried out for sawn timber obtained from the Silesian Forestry Region in Poland. Visual strength grading was performed in accordance with PN-D-94021:2013,...
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