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Analiza razkrojenega smrekovega lesa zaščitenega z biocidnim proizvodom CCB po 14 letih izpostavitve na prostem
ID Humar, Miha (Author), ID Lesar, Boštjan (Author), ID Kržišnik, Davor (Author), ID Balzano, Angela (Author)

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Abstract
Les na prostem je izpostavljen delovanju abiotskih in biotskih dejavnikov. Če hočemo njihovo delovanje upočasniti, moramo les zaščititi. V preteklosti je bil biocidni proizvod na osnovi bakrovih, kromovih in borovih spojin (CCB) ena najpomembnejših rešitev za zaščito lesa v ostrih pogojih izpostavitve. Kljub temu, da se CCB v EU praktično ne uporablja več, lahko služi kot referenca za vrednotenje novih biocidnih proizvodov. Na terenskem polju Oddelka za lesarstvo Biotehniške fakultete že 14 let poteka poskus v realnih pogojih, kjer so impregnirani vzorci izpostavljeni vremenskim vplivom v skladu z dvoslojnim testom. Pri zaščitenem lesu pogosto opažamo, da les propade hitreje kot je pričakovano. V okviru tega prispevka želimo na podlagi analize razkrojenega s CCB impregniranega lesa s terenskega polja Oddelka za lesarstvo ugotoviti, zakaj je prišlo do prezgodnjega razkroja. Rezultati kažejo, da ustrezno življenjsko dobo zagotavljata ustrezna retencija in penetracija aktivnih učinkovin v les.

Language:Slovenian
Keywords:les, zaščita lesa, CCB, impregnacija, razkroj, lesne glive
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Publication status:Published
Publication version:Version of Record
Year:2021
Number of pages:Str. 5-15
Numbering:Let. 70, št. 1
PID:20.500.12556/RUL-127563 This link opens in a new window
UDC:630*84
ISSN on article:0024-1067
DOI:10.26614/les-wood.2021.v70n01a01 This link opens in a new window
COBISS.SI-ID:63184899 This link opens in a new window
Publication date in RUL:15.06.2021
Views:659
Downloads:155
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Record is a part of a journal

Title:Les
Shortened title:Les
Publisher:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0024-1067
COBISS.SI-ID:13940224 This link opens in a new window

Secondary language

Language:English
Title:Analysis of decayed Norway spruce wood impregnated with CCB after 14 years of outdoor exposure
Abstract:
Wood in outdoor applications is exposed to abiotic and biotic factors. If we want to slow down the decay, the wood must be protected. In the past, biocidal products based on copper, chromium, and boron compounds (CCB) were one of the most important solutions for wood protection under extreme conditions. Although CCB is in practice no longer used in the EU, it can serve as a reference for the evaluation of new biocidal products. At the field test site of the Department of Wood Science and Technology, Biotechnical Faculty, an experiment has been carried out under real conditions for 14 years, in which impregnated samples are exposed to the weather according to a double-layer test. In the case of treated wood, we often find that the wood decays faster than expected. In this work we want to determine what contributes to decay based on the analysis of decayed impregnated wood from the field test site. The results show that sufficient retention and penetration of the active substances into the wood ensures the planned service life.

Keywords:wood, wood protection, CCB, impregnation, decay, wood inhabiting fungi

Projects

Funder:ARRS - Slovenian Research Agency
Project number:V4-2017
Name:Izboljšanje konkurenčnosti slovenske gozdno-lesne verige v kontekstu podnebnih sprememb in prehoda v nizko-ogljično družbo

Funder:ARRS - Slovenian Research Agency
Project number:P4-0015
Name:Les in lignocelulozni kompoziti

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