Environmentally friendly protection of European beech against fire and fungal decay using a combination of thermal modification and mineralisation

Repič, Rožle (avtor), Pondelak, Andreja (avtor), Kržišnik, Davor (avtor), Humar, Miha (avtor), Knez, Nataša (avtor), Knez, Friderik (avtor), Sever Škapin, Andrijana (avtor)

The demand for construction timber is continuously increasing, due to its favourable characteristics. However, the adequate protection of wood is key to its successful use, as it is flammable and susceptible to biodegradation. Given that thermal modification enhances the durability of wood, and mineralisation with CaCO$_3$ considerably improves its fire properties, it is worth considering the combined effects of the two methods. European beech (Fagus sylvatica) was selected to determine the effects of a) thermal modification, b) mineralisation through the in-situ formation of CaCO$_3$, and c) a combination of the two procedures, on resistance to decay fungi, reaction to fire and the mechanical properties of the wood. Microscopic analysis and comparisons of the samples before and after exposure to fungi were also conducted. Mineralised wood generally had a slightly alkaline pH value and higher equilibrium moisture content, while thermal modification lowered the equilibrium moisture content. The present study demonstrated the combined effect of thermal modification and mineralisation: the best response to fire as well as resistance to fungi was achieved when the two treatments were combined. Results from the Brinell hardness and three-point bending tests indicate that both modification procedures can slightly impair the mechanical properties of the wood.

• Jezik: Angleški jezik
• Ključne besede: wood, protection, durability, mechanical properties
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: Str. 33–44
• Številčenje: Vol. 19, no. 1
• PID: 20.500.12556/RUL-154916
• UDK: 620.1/.2
• ISSN pri članku: 1748-0280
• DOI: 10.1080/17480272.2023.2223508
• COBISS.SI-ID: 157967107
• Datum objave v RUL: 08.03.2024

Gradivo je del revije

• Naslov: Wood material science & engineering
• Skrajšan naslov: Wood mater. sci. eng
• Založnik: Taylor & Francis
• ISSN: 1748-0280
• COBISS.SI-ID: 522172953

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: les, zaščita, trajnost, mehanske lastnosti