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Non-destructive penetration method for determining the quality of structural Spruce wood (Picea Abies KARST. L.) in situ

  1. NázovNon-destructive penetration method for determining the quality of structural Spruce wood (Picea Abies KARST. L.) in situ
    Aut.údajeAlena Rohanová
    Autor Rohanová Alena TUZDFDS - Katedra drevených stavieb
    Zdroj.dok. Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. Vol. 62, no. 1 (2020), s. 113-123. - Zvolen : Technická univerzita vo Zvolene, 2020
    PoznámkyLit.
    Jazyk dok.angličtina
    KrajinaSlovenská republika
    Systematika674.032.475.5
    630*812.39
    Heslá smrekové drevo - spruce wood * konštrukčné drevo - structural timber * dosky - panels * hustota dreva - wood density * penetrácia - penetration * veľkosť prírastku - rate of growth * pevnostné triedy - strength classes
    AnotáciaStructural timber is specific, because its quality isset by visual or mechanical grading. Visual grading method by PILODYN 6J deviceis examined in the paper. Experiments were carried out using 5 spruce boards (Picea abies Karst. L) from Slovakia. Dimensions of boards were 40 × 200 × 2500 mm. Density of wood was set by gravimetric method according to EN 408 (2013). Depth of penetrations was measured using the device PILODYN 6J (hp). Wood structure was described by the rate of growth (RoG) according to DIN 1052 (2004). Three most used visual grading strength classes C30, C24 and C18 according to EN 338 (2016) were specified. Dependencies between measured characteristics were expressed by multistage parallel scale model (penetration depth ~ number of growth rings ~ rate of growth ~ strength class and wood density). It is possible to predict visual strength class of board and indicative density of wood (EN 338) by the proposed model in situ. Methods of model are easy to use, reliable and economically undemanding.
    URLhttps://df.tuzvo.sk/sites/default/files/10-01-20.pdf
    Kategória publikačnej činnosti ADN
    Báza dátxcla - ČLÁNKY
    Druh dok.RBX - rozpis článkov z periodík
    OdkazyPERIODIKÁ-Súborný záznam periodika
    Zväzky2020: 1-2
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