放置竹林の竹管および倒木チップを素材とした倒木充填竹管 (FTCFB) の開発

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  • DEVELOPMENT OF FTCFB MADE OF BAMBOO FROM NEGLECTED FOREST AND FALLEN WOOD CHIPS
  • ホウチ チクリン ノ タケカン オヨビ トウボク チップ オ ソザイ ト シタ トウボク ジュウテンタケカン(FTCFB)ノ カイハツ

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J-GLOBAL ID : 200901087140410167

In order to solve the global environmental problems, there is a need to make effective use of unused natural resources that have been turned into waste. Among the unused resources, neglected bamboo forests and fallen trees have become a problem in Japan. In this study, in order to regenerate tree waste as a new building material by utilizing natural materials that have deviated from these human life cycles, reusing the bamboo from the neglected bamboo forest and fallen wood chips, we made a Fallen Tree Chips Filled Bamboo (FTCFB), which was formed by compacting fallen chips into the bamboo cavity. The conditions for the fabrication of FTCFB were obtained experimentally, and the mechanical properties of FTCFB were evaluated in the densest state. The summaries of results are described as follows; 1)　A compaction curve was calculated, and it was found that the optimum moisture content of the propped-up fallen wood chips was about 90%, with a maximum dry density of 0.44 g/cm3. 2)　When wooden chips are packed in the hollow bamboo, the compressive strength of FTCFB was improved about twice as much. 3)　The addition of 5% solidifier had no significant effect on the compressive strength.

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