Air permeability of sugi (Cryptomeria japonica) wood in the three directions

To investigate the air permeability of sugi (Cryptomeria japonica) and the effect of grain directions on it, the air permeabilities of air-dried sugi sapwood and heartwood were determined along the three material directions of wood. The value of the longitudinal permeability was the highest and that...

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Autores principales:	Tanaka,Takashi, Kawai,Yasuo, Sadanari,Masanori, Shida,Satoshi, Tsuchimoto,Takahiro
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2015
Materias:	Air permeability radial permeability tangential permeability sugi Japanese cedar
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000100003
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spelling	oai:scielo:S0718-221X20150001000032015-06-17Air permeability of sugi (Cryptomeria japonica) wood in the three directionsTanaka,TakashiKawai,YasuoSadanari,MasanoriShida,SatoshiTsuchimoto,Takahiro Air permeability radial permeability tangential permeability sugi Japanese cedar To investigate the air permeability of sugi (Cryptomeria japonica) and the effect of grain directions on it, the air permeabilities of air-dried sugi sapwood and heartwood were determined along the three material directions of wood. The value of the longitudinal permeability was the highest and that of the radial permeability was the lowest. The permeability of heartwood was about an order of magnitude less than the permeability of sapwood in the same direction. The ratio between the tangential and radial permeability was approximately 10, which was similar to softwoods that have impermeable rays. These results suggest that sugi has ray tissues that are either impermeable or have very low permeability. The radial permeability of sugi was much lower than that of Pinus, Sequoia, Juniperus, Abies, and Tsuga measured with gases reported in the literature, indicating that sugi is one of the least radially permeable softwoods. These findings explain the reasons for the difficulties encountered in the drying and chemical treatment of sugi (Cryptomeria japonica).info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.17 n.1 20152015-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000100003en10.4067/S0718-221X2015005000002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Air permeability radial permeability tangential permeability sugi Japanese cedar
spellingShingle	Air permeability radial permeability tangential permeability sugi Japanese cedar Tanaka,Takashi Kawai,Yasuo Sadanari,Masanori Shida,Satoshi Tsuchimoto,Takahiro Air permeability of sugi (Cryptomeria japonica) wood in the three directions
description	To investigate the air permeability of sugi (Cryptomeria japonica) and the effect of grain directions on it, the air permeabilities of air-dried sugi sapwood and heartwood were determined along the three material directions of wood. The value of the longitudinal permeability was the highest and that of the radial permeability was the lowest. The permeability of heartwood was about an order of magnitude less than the permeability of sapwood in the same direction. The ratio between the tangential and radial permeability was approximately 10, which was similar to softwoods that have impermeable rays. These results suggest that sugi has ray tissues that are either impermeable or have very low permeability. The radial permeability of sugi was much lower than that of Pinus, Sequoia, Juniperus, Abies, and Tsuga measured with gases reported in the literature, indicating that sugi is one of the least radially permeable softwoods. These findings explain the reasons for the difficulties encountered in the drying and chemical treatment of sugi (Cryptomeria japonica).
author	Tanaka,Takashi Kawai,Yasuo Sadanari,Masanori Shida,Satoshi Tsuchimoto,Takahiro
author_facet	Tanaka,Takashi Kawai,Yasuo Sadanari,Masanori Shida,Satoshi Tsuchimoto,Takahiro
author_sort	Tanaka,Takashi
title	Air permeability of sugi (Cryptomeria japonica) wood in the three directions
title_short	Air permeability of sugi (Cryptomeria japonica) wood in the three directions
title_full	Air permeability of sugi (Cryptomeria japonica) wood in the three directions
title_fullStr	Air permeability of sugi (Cryptomeria japonica) wood in the three directions
title_full_unstemmed	Air permeability of sugi (Cryptomeria japonica) wood in the three directions
title_sort	air permeability of sugi (cryptomeria japonica) wood in the three directions
publisher	Universidad del Bío-Bío
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000100003
work_keys_str_mv	AT tanakatakashi airpermeabilityofsugicryptomeriajaponicawoodinthethreedirections AT kawaiyasuo airpermeabilityofsugicryptomeriajaponicawoodinthethreedirections AT sadanarimasanori airpermeabilityofsugicryptomeriajaponicawoodinthethreedirections AT shidasatoshi airpermeabilityofsugicryptomeriajaponicawoodinthethreedirections AT tsuchimototakahiro airpermeabilityofsugicryptomeriajaponicawoodinthethreedirections
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Air permeability of sugi (Cryptomeria japonica) wood in the three directions

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