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Rezultati izlaganja nezaštićenog drva i drva zaštićenog bakar- etanolaminom utjecaju morske vode u luci Koper, Slovenija
Rezultati izlaganja nezaštićenog drva i drva zaštićenog bakar- etanolaminom utjecaju morske vode u luci Koper, Slovenija
- Source :
- Drvna industrija, Volume 64, Issue 4
- Publication Year :
- 2013
- Publisher :
- Faculty of Forestry and Wood Technology, University of Zagreb, 2013.
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Abstract
- The application of wood in seawater is one of the most challenging. Impregnated wood is exposed to leaching and to various marine borers, Limnoria sp. and Teredo sp. being the most important ones. The present research investigated the durability of pine wood impregnated with copper-amine based preservative solution (Silvanolin) of different concentrations exposed to the seawater according to EN 275 standard. Performance of Silvanolin treated wood was compared to the performance of reference wood (Quercus sp., Castanea sativa, Larix decidua). After 10, 18 and 32 months of exposure, specimens were removed and assessed. The results show clearly that the reference wood species were completely degraded after 10 months of exposure. On the other hand, it became evident that Silvanolin prolonged the service life of wood exposed to the sea. The specimens impregnated with the lowest concentration of preservative solution (cCu = 0.31 %) were slightly decayed. The specimens, impregnated with higher concentrations of copper (cCu > 0.31 %), showed almost no defects after expsore to marine borers.<br />Primjena drva u morskoj vodi jedna je od najizazovnijih primjena drva. Impregnirano drvo izloženo je ispiranju te raznim morskim štetnicima, pri čemu su Limnoria sp. i Teredo sp. među najštetnijima. U radu je prikazano istraživanje trajnosti borova drva impregniranoga zaštitnom otopinom na bazi bakar-amina (Silvanolin) različitih koncentracija i izloženoga morskoj vodi prema normi EN 275. Izgled drva zaštićenog Silvanolinom uspoređen je s izgledom referentnoga drvnog materijala (Quercus sp., Castanea sativa, Larix decidue). Nakon 10 , 18 i 32 mjeseca izlaganja morskoj vodi, uzorci su izvađeni te ocijenjeni. Iz dobivenih se rezultata može jasno vidjeti da su uzorci referentnog drva nakon 10 mjeseci bili potpuno razgrađeni. Nasuprot tome, pokazalo se da Silvanolin produžuje vijek trajanja drva u moru. Uzorci impregnirani otopinom zaštitnog sredstva najmanje koncentracije (cCu = 0,31 %) blago su istrunuli. Uzorci impregnirani otopinom zaštitnog sredstva s većom koncentracijom bakra (cCu > 0,31 %) nisu pokazali gotovo nikakva oštećenja nakon izlaganja morskim štetnicima.
Details
- Language :
- English
- ISSN :
- 18471153 and 00126772
- Volume :
- 64
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Drvna industrija
- Accession number :
- edsair.od.......951..91149c9c998113aec7fdff00ad608155