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Avairable Utilization on Hardwoods grown in Southern Kyuusyuu include in Amamiooshima

Research Project

Project/Area Number 62560180
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 林産学
Research InstitutionKagoshima University

Principal Investigator

FUJITA Shinsuke  Faculty of Agriculture, Kagoshima University, 農学部, 助教授 (70032563)

Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1988: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1987: ¥700,000 (Direct Cost: ¥700,000)
KeywordsHardwood / wood properties / drying defect / drying shedule / 乾燥特性 / 接着剤 / 木口割れ / 落ち込み
Research Abstract

This investigation were carried on to a few fundamental properties of hardwoods of 11 species grown in Amamiooshima and Kagoshima city. Three piecies of the stem, fixed at breast-height 30-40 cm long in diameter were adopted as the samples to be used for ascertaining some physical and mechanical properties as well as the respective specific gravities. The specimen were obtained in the stem measuring from 0.2m to 4m in heights above the ground, along the stem diameter, through pith from a sapwood to another.
In the holding, the following physical and mechanical properties were examined.
1. Physical properties ( a specific gravity,moisture content in green condition, and shrinkage along the tangential, radia and longitudinal directions.)
2. Mechanical properties ( bending test,compressive test,impact-bending test, shearing test and cleavage test.)
3. A testing of adhesive ( uria resin adhesive,polyvinyl acetate resin adhesive, polyurethane resin adhesive and resorcinol resin adhesive ).
4. Th … More e trial construction of dr ing shedule ( four species ).
The experimental results obtained about the phisical, mechanical and adhesive properties, and other properties are summerized as folloes;
1. The specific gravity and amoisture content in green ranged 0.44-0.98, from 52 % to 91 %.
2. The shrinkage from green to oven-dry-condition was was 6.83%-12.7%,3.81-5.18% along and radial direction, in respective species. On the oter hand, average shrinkage per 1% moisture-content was 0.22%-0.29%,and 0.16%-0.18% inrespective species.
3. As described in the previous papers, based on the discussionsmade on the variations in the respective mechanical properties which were observable and decreasing along the radial direction from pith to bark, an existence of the five typed variations along the stem-radius from pith to bark was ascertained.
4. Based on the statistical discussions about the specific gravities and mechanical properties under the air conditions, a relativity was confirmed between the specific gravity and mechanical properties. Less

Report

(3 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] 藤田晋輔: 鹿児島大学農学部学術報告. 第38巻. 211-221 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 藤田晋輔: 第38回日本木材学会大会要旨集(旭川大会). 38. 430 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 藤田晋輔: 第39回日本木材学会大会要旨集(沖縄大学). (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 藤田晋輔: 木材工業. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 藤田晋輔: 木材工業. (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Shinsuke Fujita: "Available Utilization on Hardwoods growing in Southern Kyuushuu (VIII) Some variation of mechanical properties and Utilization." The Bull. of the Faculty of Agri., Kagoshima Unv.38. 211-220 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Shinsuke Fujita: "Available utilization on Hardwoods of seven species grown in Amamiooshima." Proceedings of 38 th Annual Meeting of Japan Wood Research Society, Asahikawa.38. 430 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Shinsuke Fujita: "The properties of Adhesives and utilization on Hardwoods of Seven species grown in Amamiooshima." Proceedings of 39 th Annual Meeting of Japan wood Research Society, Okinawa(Naha).39. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Shinsuke Fujita: "The Utilization and some variation of mechanical properties on Shiratsugu and Mutsunarabi wood." Wood Technology. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Shinsuke Fujita: "The Technology for wood drying on a lane hardwoods grown in Amamiooshima." The Bull. of Fac. of Agri., Kagoshima UNiv.40. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 藤田晋輔: 第39回日本木材学会大会要旨集(沖縄大会). (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 藤田晋輔: 木材工業. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 藤田晋輔: 鹿児島大学農学部学術報告. 38. 211-221 (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] 藤田晋輔: 第 回日本木材学会大会発表要旨集(北海道大会). (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] 藤田晋輔: 鹿児島大学農学部学術報告. 39. (1989)

    • Related Report
      1987 Annual Research Report
  • [Publications] 藤田晋輔: 木材工業. (1989)

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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