Studies on the material resistance and moisture dynamics of wood after artificial and natural weathering

Eli Keržič (Author), Miha Humar (Author)

Abstract

Wood is one of the most important building materials. During the service life of wood and derived materials, various degradation factors affect performance. To assess how weathering influenced the material resistance and moisture dynamics of wood, 11 different materials were exposed to natural weathering for 9, 18 and 27 months or artificial accelerated weathering. Afterwards, the moisture performance of wood was determined in line with the Meyer-Veltrup procedure. Weathered samples were also exposed to the brown-rot fungus Gloeophyllum trabeum for 16 weeks. Respective materials were classified into durability classes according to EN 350, and relative resistance dose (Drd rel) was calculated. Weathering resulted in leaching of biologically active extractives, changed surface morphology and increased permeability. All these changes were reflected in decreased relative resistance dose for all tested materials. The largest deceases were determined for thermally modified wood, Scots pine, European larch and sweet chestnut heartwood

Keywords

les;trajnost lesa;odpornost proti navlaževanju;naravna odpornost;modifikacija lesa;zaščitna sredstva za les;wood;inherent durability;moisture performance;natural durability;wood modification;wood preservatives;

Data

Language:	English
Year of publishing:	2022
Typology:	1.01 - Original Scientific Article
Organization:	UL BF - Biotechnical Faculty
UDC:	630*8
COBISS:	55825411
ISSN:	1748-0280
Views:	255
Downloads:	42
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	les;trajnost lesa;odpornost proti navlaževanju;naravna odpornost;modifikacija lesa;zaščitna sredstva za les;
Type (COBISS):	Article
Pages:	str. 551-557
Volume:	ǂVol. ǂ17
Issue:	ǂno. ǂ6
Chronology:	2022
DOI:	10.1080/17480272.2021.1902388
ID:	17623731