Utilization of Domestic Small Timbers -Shrinkage and Swelling of Alkali-Treated Woods-

간벌재 및 소경재의 이용개발에 관한 연구 -알칼리 처리 목재의 수축팽윤성-

  • 황원중 (강원대학교 산림과학대학 임산공학과) ;
  • 김남훈 (강원대학교 산림과학대학 임산공학과)
  • Published : 1999.09.01


The behaviors of alkali swelling in four major Korean woods were examined as a function of concentration cf alkali solution. Density of alkali-treated woods increased highly with increasing alkali concentration in both softwoods and hardwoods. Wood samples swelled in dimension during alkali swelling, and thereafter they shrank highly by water washing and air drying. The air-dried wood samples after alkali treatment showed almost isotropic shrinkage in tangential and radial direction.