Influence of natural weathering on the ignition and relative burning rate of selected softwoods
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F21%3A89673" target="_blank" >RIV/60460709:41320/21:89673 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S0950061821023709" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0950061821023709</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.conbuildmat.2021.124615" target="_blank" >10.1016/j.conbuildmat.2021.124615</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Influence of natural weathering on the ignition and relative burning rate of selected softwoods
Popis výsledku v původním jazyce
In recent decades, coniferous facade boards from untreated wood have been used extensively without the use of biocides, flame retardants and weather protection coating systems. This work is focused on testing selected properties of 4 untreated softwoods -spruce, larch, pine and Douglas fir -exposed outdoors for 3, 6, 12 and 24 months during direct flame exposure. When exposed to outdoor conditions, all of the wood species significantly changed colour to grey shades, while the highest roughness changes were observed in spruce. FTIR analyses confirmed a significant decrease in lignin in surface layers due to weathering. After 3, 6, 12 and 24 months of weathering, all of these measured characteristics had no significant effect on changes in ignition and relative burning rate of the tested wood. The tests confirmed the higher effect of the wood species compared to density influence, wherein pine had significantly higher mass losses and burning rate compared to Douglas fir, spruce and larch. According to
Název v anglickém jazyce
Influence of natural weathering on the ignition and relative burning rate of selected softwoods
Popis výsledku anglicky
In recent decades, coniferous facade boards from untreated wood have been used extensively without the use of biocides, flame retardants and weather protection coating systems. This work is focused on testing selected properties of 4 untreated softwoods -spruce, larch, pine and Douglas fir -exposed outdoors for 3, 6, 12 and 24 months during direct flame exposure. When exposed to outdoor conditions, all of the wood species significantly changed colour to grey shades, while the highest roughness changes were observed in spruce. FTIR analyses confirmed a significant decrease in lignin in surface layers due to weathering. After 3, 6, 12 and 24 months of weathering, all of these measured characteristics had no significant effect on changes in ignition and relative burning rate of the tested wood. The tests confirmed the higher effect of the wood species compared to density influence, wherein pine had significantly higher mass losses and burning rate compared to Douglas fir, spruce and larch. According to
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20502 - Paper and wood
Návaznosti výsledku
Projekt
<a href="/cs/project/EF16_019%2F0000803" target="_blank" >EF16_019/0000803: Excelentní Výzkum jako podpora Adaptace lesnictví a dřevařství na globální změnu a 4. průmyslovou revoluci</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
CONSTRUCTION AND BUILDING MATERIALS
ISSN
0950-0618
e-ISSN
—
Svazek periodika
304
Číslo periodika v rámci svazku
2021
Stát vydavatele periodika
CZ - Česká republika
Počet stran výsledku
10
Strana od-do
1-10
Kód UT WoS článku
000696907900004
EID výsledku v databázi Scopus
2-s2.0-85113489409