Analysis of decayed Norway spruce wood impregnated with CCB after 14 years of outdoor exposure

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 condit...

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Main Authors: Miha Humar, Boštjan Lesar, Davor Kržišnik, Angela Balzano
Format: Article
Language:English
Published: University of Ljubljana Press (Založba Univerze v Ljubljani) 2021-05-01
Series:Les
Subjects:
Online Access:https://journals.uni-lj.si/les-wood/article/view/12105
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author Miha Humar
Boštjan Lesar
Davor Kržišnik
Angela Balzano
author_facet Miha Humar
Boštjan Lesar
Davor Kržišnik
Angela Balzano
author_sort Miha Humar
collection DOAJ
description 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.
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institution OA Journals
issn 0024-1067
2590-9932
language English
publishDate 2021-05-01
publisher University of Ljubljana Press (Založba Univerze v Ljubljani)
record_format Article
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spelling doaj-art-cd2daaa90cb54969b49aa7db6f4715742025-08-20T02:37:18ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Les0024-10672590-99322021-05-0170110.26614/les-wood.2021.v70n01a01Analysis of decayed Norway spruce wood impregnated with CCB after 14 years of outdoor exposureMiha HumarBoštjan LesarDavor KržišnikAngela Balzano 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. https://journals.uni-lj.si/les-wood/article/view/12105wood, wood protection, CCB, impregnation, decay, wood inhabiting fungi
spellingShingle Miha Humar
Boštjan Lesar
Davor Kržišnik
Angela Balzano
Analysis of decayed Norway spruce wood impregnated with CCB after 14 years of outdoor exposure
Les
wood, wood protection, CCB, impregnation, decay, wood inhabiting fungi
title Analysis of decayed Norway spruce wood impregnated with CCB after 14 years of outdoor exposure
title_full Analysis of decayed Norway spruce wood impregnated with CCB after 14 years of outdoor exposure
title_fullStr Analysis of decayed Norway spruce wood impregnated with CCB after 14 years of outdoor exposure
title_full_unstemmed Analysis of decayed Norway spruce wood impregnated with CCB after 14 years of outdoor exposure
title_short Analysis of decayed Norway spruce wood impregnated with CCB after 14 years of outdoor exposure
title_sort analysis of decayed norway spruce wood impregnated with ccb after 14 years of outdoor exposure
topic wood, wood protection, CCB, impregnation, decay, wood inhabiting fungi
url https://journals.uni-lj.si/les-wood/article/view/12105
work_keys_str_mv AT mihahumar analysisofdecayednorwaysprucewoodimpregnatedwithccbafter14yearsofoutdoorexposure
AT bostjanlesar analysisofdecayednorwaysprucewoodimpregnatedwithccbafter14yearsofoutdoorexposure
AT davorkrzisnik analysisofdecayednorwaysprucewoodimpregnatedwithccbafter14yearsofoutdoorexposure
AT angelabalzano analysisofdecayednorwaysprucewoodimpregnatedwithccbafter14yearsofoutdoorexposure