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Zgradba, lastnosti in možnosti uporabe lesa octovca : diplomski projekt = Structure, properties and potential use of staghorn sumac wood : B. Sc. thesis
Burdych, Jera
Raziskali smo izbrane lastnosti lesa octovca (Rhus typhina L.), ki bi utegnile predvideti njegovo uporabo. Proučevali smo makro- in mikroskopsko anatomsko zgradbo, izbrane fizikalne lastnosti ...(radialno porazdelitev gostote in vlažnosti, krčenja in nabrekanja, kazalnike dimenzijske stabilnosti) ter nekatere mehanske lastnosti (modul elastičnosti, tlačno, upogibno in strižno trdnost). Ugotovili smo, da les octovca spada med venčasto porozne lesne vrste. Povprečna gostota v absolutno suhem stanju lesa je 514 kg/m3. Vlažnost svežega lesa v povprečju znaša 58,2 %. Krčenje in nabrekanje je majhno, nizka je tudi točka nasičenja celičnih sten, ki znaša 19,3 %. Kazalniki dimenzijske stabilnosti so ugodni, razen sorpcijskega kvocienta, ki je normalen, in anizotropije, ki je neugodna. Iz primerjave fizikalnih in mehanskih lastnosti lesa z lipovino in domačo kostanjevino ocenjujemo, da je les octovca primeren za manjše, nekonstrukcijske izdelke, saj je njegova upogibna trdnost 47 do 68 MPa, modul elastičnosti pa v povprečju le 5,3 GPa.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [J. Burdych], 2012
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