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Volume 27 (2001)
- Issue 6 Pages 256-
- Issue 5 Pages 202-
- Issue 4 Pages 151-
- Issue 3 Pages 100-
- Issue 2 Pages 48-
- Issue 1 Pages 2-
Volume 27, Issue 5
Displaying 1-6 of 6 articles from this issue
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[in Japanese]2001 Volume 27 Issue 5 Pages 202-207
Published: September 25, 2001
Released on J-STAGE: May 22, 2009
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Minoru ANDOH, Futoshi ISHIGURI, Shinso YOKOTA, Nobuo YOSHIZAWA2001 Volume 27 Issue 5 Pages 208-215
Published: September 25, 2001
Released on J-STAGE: December 08, 2009
JOURNAL FREE ACCESSIn the present study, liquid penetrability of smoke-heated sugi (Cryptomeria japonica D. Don) wood was evaluated. The sugi log with bark was smoke-heated directly for 40 hours at a temperature inside a log of 80°C. After smoke heating, specimens obtained from non-and smoke-heated woods were impregnated with a commercial fire retardant under several vacuum conditions, and then weight percentage gain (WPG) was determined. In addition, some characteristics including mechanical property, of the prepared fire-retarding woods were investigated. The rupture ratio of pit membranes increased in both heartwood and sapwood by smoke heating. The WPG after impregnation with the reagent increased greatly in smoke-heated heartwood. Residual weight of specimen after burning test increased with the increase of vacuum pressure for the impregnation. Almost no differences in the modulus of rupture in bending were found between the control and impregnated woods. However, the modulus of elasticity increased with increase in the WPG. The results obtained here suggest that smoke-heating technique gave great improvement of liquid penetrability in sugi heartwood.View full abstractDownload PDF (3430K) -
[in Japanese], [in Japanese], [in Japanese]2001 Volume 27 Issue 5 Pages 216-224
Published: September 25, 2001
Released on J-STAGE: May 22, 2009
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[in Japanese]2001 Volume 27 Issue 5 Pages 225-232
Published: September 25, 2001
Released on J-STAGE: May 22, 2009
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[in Japanese]2001 Volume 27 Issue 5 Pages 233-236
Published: September 25, 2001
Released on J-STAGE: May 22, 2009
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[in Japanese], [in Japanese], [in Japanese]2001 Volume 27 Issue 5 Pages 237-242
Published: September 25, 2001
Released on J-STAGE: May 22, 2009
JOURNAL FREE ACCESSDownload PDF (3240K)
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