Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
권호 표지

Mechanical and Oven-drying Characteristics of Pinus densiflora Wood Damaged by Forest Fire

산불 피해 소나무재의 역학적 특성 및 급속오븐 건조특성

  • Hwang, Won-Joung (College of Forest Sciences, Kangwon National University) ;
  • Kwon, Gu-Joong (College of Forest Sciences, Kangwon National University) ;
  • Park, Jong-Su (College of Forest Sciences, Kangwon National University) ;
  • Kim, Nam-Hun (College of Forest Sciences, Kangwon National University)
  • 황원중 (강원대학교 산림과학대학) ;
  • 권구중 (강원대학교 산림과학대학) ;
  • 박종수 (강원대학교 산림과학대학) ;
  • 김남훈 (강원대학교 산림과학대학)
  • Received : 2002.09.30
  • Accepted : 2002.11.20
  • Published : 2003.08.26
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Abstract

The Mechanical and drying characteristics of Pinus densiflora wood, which was damaged by forest fire, and sound wood were examined. There were no significant differences in axial compressive properties, shearing strength and impact bending absorbed energy between damaged and sound woods. But the bending properties of damaged wood were slightly higher than those of sound wood. The green moisture content of sapwood in damaged wood was lower than that in sound wood, but oven-drying rate was similar in both woods. Number of initial check in damaged wood was smaller than that in sound wood, and inner check in damaged and sound woods was not observed. Consequently, it is considered that mostly damaged wood by forest fire can be used for wood material after removing the bark.

본 연구에서는 산불 피해 소나무재의 이용을 위한 기초자료를 얻고자 역학적 및 건조 특성을 조사하였다. 산불피해재는 종압축 특성, 전단강도, 충격휨흡수에너지 등에서 건전재와 거의 유사한 결과를 보여주었으며, 산불피해재 변재부의 휨특성은 건전재보다 양호하게 나타났다. 건전재와 산불피해재 변재부의 생재함수율은 산불피해재가 다소 낮았으나, 건조속도는 거의 차이가 없었다. 건조시 발생되는 초기할렬은 건전재가 산불피해재보다 발생율이 높았고, 내부할렬은 건전재와 산불피해재에서 발생되지 않았다. 따라서 산불에 의해 피해를 입은 목재의 대부분은 수피부를 제거하여 이용할 경우 건전재와 거의 동일한 용도로서 사용이 가능할 것으로 생각된다.

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