FSP measurement of heat-treated softwoods using volumetric swelling method

: Specimens of five softwood species were heat-treated at three temperature levels of 170℃, 190℃and 210℃. Their FSP’s were measured by the volumetric Swelling Method. Within a species the FSP decreases as the temperature of heat treatment increases. The FSP's of the controls range from 21.0% to 32.5%, while those of the specimens heat-treated at 210℃ from 18.7% to 35.3%. There was no difference of basic density between the heat-treated and control specimens. Key words : Softwood, Heat treatment, Volumetric swelling Method, FSP, Basic density *Corresponding author: Tel: +82-42-821-5758E-mail address: hykang@cnu.ac.kr I. . . . . 25%-35% . . . . . 160℃ (Garrote et al., 1999). , , (Tejada et al., 1997; Bhuiyan et al., 2000; Obataya et al., 2000). , (Repellin Guyonnet, 2005; Kim Kang, 2005) . 100% . . . Repellin Guyonnet (2005) DSC(Differential