Miha Humar (Author), Boštjan Lesar (Author), Davor Kržišnik (Author)

Abstract

Les na prostem je izpostavljen delovanju biotskih in abiotskih dejavnikov razkroja. V naravi so ti procesi zaželeni, kadar pa les uporabljamo v komercialne namene, želimo razkroj čim bolj upočasniti. V primeru razvrednotenja lesa pa moramo lesene elemente zamenjati. Lesene izdelke praviloma menjamo zaradi estetskih razlogov ali nedoseganja tehničnih zahtev. V tem prispevku opisujemo najpomembnejše mehanizme in razloge za razgradnjo lesa na prostem, naravno odpornost lesa in sodobne rešitve za zaščito. Na koncu so predstavljeni ključni rezultati o obnašanju lesa na terasi lesenega modelnega objekta na Oddelku za lesarstvo. Terasa ponazarja podobno izpostavitev kot mostovi, pohodne površine oziroma streha, zato je primerna kot odličen prikaz obnašanja lesa na prostem.

Keywords

les;odpornost lesa;življenjska doba lesa;razkroj;barvne spremembe;lesne glive;

Data

Language: Slovenian
Year of publishing:
Typology: 1.02 - Review Article
Organization: UL BF - Biotechnical Faculty
UDC: 630*84--013.8(045)=163.6
COBISS: 5652646 Link will open in a new window
ISSN: 2335-3112
Parent publication: Acta Silvae et Ligni
Views: 2348
Downloads: 2230
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Other data

Secondary language: English
Secondary title: Technical and aesthetic service life of wood
Secondary abstract: In outdoor applications wood is exposed to biotic and abiotic degradation factors. These processes are essential for carbon circulation. However, if wood is used in commercial applications, these processes need to be slowed down as much as possible. When wood is degraded, it has to be replaced. In general, wooden elements are replaced for aesthetic reasons or due to the failure to meet technical requirements. This paper describes the most important mechanisms of wood degradation in outdoor applications. Special emphasis is given to the natural durability of wood and state-of-the-art preservation solutions. In addition, key results on the performance of the wooden on the decking of a study object in Ljubljana are presented. The decking represents a similar exposure to that of bridges, outdoor flooring or roofs, and therefore can be used as a model for the assessment of the performance of wood used outdoors.
Secondary keywords: wood;durability;service life;decay;colour changes;wood inhabiting fungi;
Type (COBISS): Article
Pages: str. 33-48
Issue: [Št.] 121
Chronology: 2020
DOI: 10.20315/ASetL.121.3
ID: 11484266