caa a22 4500 463247167 CHVBK 20180405153329.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10086-006-0816-1 doi (NATIONALLICENCE)springer-10.1007/s10086-006-0816-1 Correlation between charring rate and oxygen permeability for 12 different wood species [Elektronische Daten] [Erich Hugi, Marcel Wuersch, Walter Risi, Karim Wakili] The charring rates of 12 different wood species originating from Europe and the tropics with densities ranging from 350 to 750kg/m3 were investigated to obtain clues on their fire resistance behavior. This was done by measuring the thickness of the charred layer after a 30-min exposure to the standard fire ISO 834-1. No correlation was observed between charring rate and density. In search of another physical property that could be used as an indicator of fire resistance, the oxygen permeabilities of the selected wood types were measured. A strong correlation between oxygen permeability perpendicular to the wood fiber direction and charring rate was found, which is quite straightforward given that oxygen is the necessary component to enable smoldering and ignition, both affecting the charring rate. It seems that oxygen permeability is potentially more suitable as a parameter to evaluate the fire resistance of char-sensitive wooden constructions, rather than density. No general preference of the tree ring orientation from 0° (tangential) to 45° and 90° (radial) was found for these measurements. The Japan Wood Research Society, 2006 Oxygen permeability nationallicence Charring rate nationallicence Wood species nationallicence Fiber orientation nationallicence Fire resistance nationallicence Hugi Erich Building Technologies, Materials Science and Technology, CH-8600, Empa, Duebendorf, Switzerland aut Wuersch Marcel Building Technologies, Materials Science and Technology, CH-8600, Empa, Duebendorf, Switzerland aut Risi Walter Wood Laboratory, Materials Science and Technology, CH-8600, Empa, Duebendorf, Switzerland aut Wakili Karim Building Technologies, Materials Science and Technology, CH-8600, Empa, Duebendorf, Switzerland aut Journal of Wood Science Springer-Verlag 53/1(2007-02-01), 71-75 1435-0211 53:1<71 2007 53 10086 https://doi.org/10.1007/s10086-006-0816-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10086-006-0816-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hugi Erich Building Technologies, Materials Science and Technology, CH-8600, Empa, Duebendorf, Switzerland aut NATIONALLICENCE 700 1- Wuersch Marcel Building Technologies, Materials Science and Technology, CH-8600, Empa, Duebendorf, Switzerland aut NATIONALLICENCE 700 1- Risi Walter Wood Laboratory, Materials Science and Technology, CH-8600, Empa, Duebendorf, Switzerland aut NATIONALLICENCE 700 1- Wakili Karim Building Technologies, Materials Science and Technology, CH-8600, Empa, Duebendorf, Switzerland aut NATIONALLICENCE 773 0- Journal of Wood Science Springer-Verlag 53/1(2007-02-01), 71-75 1435-0211 53:1<71 2007 53 10086 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer