| Project/Area Number |
02556021
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
林産学
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| Research Institution | The University of Tokyo |
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Principal Investigator |
ARIMA Takanori Tokyo Univ., Agriculture, Associate professor, 農学部, 助教授 (10144057)
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| Co-Investigator(Kenkyū-buntansha) |
ISHIHARA Shigehisa Kyoto Univ., Wood Rasearch Ins., Professor, 木質科学研究所, 教授 (90027160)
HIRAI Nobuyuki Shizuoka Univ., Agriculture, Professor, 農学部, 教授 (70023439)
NAKAMURA Noboru Tokyo Univ., Agriculture, Assistant professor, 農学部, 助手 (30180384)
SHIDA Satoshi Tokyo Univ., Agriculture, Assistant Professor, 農学部, 助手 (00201541)
YASHIRO Makoto Niigata Univ., Agriculture, Professor, 農学部, 教授 (00018532)
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| Project Period (FY) |
1990 – 1991
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| Project Status |
Completed (Fiscal Year 1991)
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| Budget Amount *help |
¥9,100,000 (Direct Cost: ¥9,100,000)
Fiscal Year 1991: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1990: ¥7,600,000 (Direct Cost: ¥7,600,000)
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| Keywords | wood-based material / concrete / concrete from plywood / internal wall / ultra-sonic wave / insulation and condensation / mouse / 超音波 / 水和熱 |
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| Research Abstract |
Concrete form plywood Is removed from hardening concrete and Is damped or burned as rubbish. Damping and burning wood has been a sdrious problem as a loss of wood resource and release of carbon-dioxide to air. This project focussed on stocking wood resource In reinforced concrete structure and Improving llvlng condition of the structure by not removing wood-based materials for concrete form.
(1) Bonding strength between wood-based materials and concrete, the behavior of water during -concrete hardening was measured. Wood-based materials such as plywood for concrete form and wool cement board might be effective for anchor effect. Velocity of stress wave and ultra-sonlc wave was effected by hardenlng of concrete and release of water. (2) Existence of wood-based materials after concrete hardening has effect for protecting condensation on the surface, Improving Insulation and control of humldlty In the "space.
(3) Fire protecting by wood-based materials was investigated. The rate of burning of wood-based material might be delayed by combination effect in concrete placing.
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