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  • Rot-type specific impact of fungal decay on the structural integrity of wood [Elektronski vir] : M. Sc. Thesis = Vpliv tipa glivnega razkroja na strukturno celovitost lesa : magistrska naloga
    Felle, Tim Konrad
    Wood-destroying fungi cause different types of decay which lead to a reduction of various elastomechanical properties of wood. This is already significant when the mass loss is not yet ... gravimetrically detectable. Particularly difficult to define is the incipient decay, since the reduction of elastomechanical properties is highly dependent on the heterogeneity and variability of individual wood species. In this study two wood species that are prescribed in several standards of determination of wood durability against wood-destroying fungi have been used, i.e. European beech (Fagus sylvatica L.) and Scots pine (Pinus sylvestris L.) sapwood. Specimens of 10 (long.) × 5 × 20 mm3 have been incubated with white-rot (Trametes versicolor) and brown-rot (Coniophora puteana) fungi and with different soft-rot fungi (spore suspension) for various incubation times. After incubation the moisture content and relative mass loss have been measured. The High-Energy Multiple Impact (HEMI) – test is a reliable tool to detect the incipient decay, thus the specimens were tested and the value of structural integrity (Resistance to Impact Milling) depending on the mass loss were determined. The reduction of structural integrity was compared with the reduction of different strength properties of wood (Impact Bending Strength, Modulus of Rupture) depending on the mass loss. The fracture patterns after HEMI – test have been investigated with a digital microscope. The DVS (Dynamic Vapor Sorption) method has been used to investigate the sorption properties of the decayed specimens.
    Type of material - master's thesis ; adult, serious
    Publication and manufacture - Ljubljana : [T. K. Felle], 2023
    Language - english
    COBISS.SI-ID - 159858947

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    Repository of the University of Ljubljana – RUL

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