| Project/Area Number |
60550331
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
コンクリート工学・土木材料・施工
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| Research Institution | Akita University |
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Principal Investigator |
TOKUDA Hiroshi Professor, Akita University, 鉱山学部, 教授 (70041879)
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| Co-Investigator(Kenkyū-buntansha) |
KAGAYA Makoto Research associate, Akita University, 鉱山学部, 助手 (00091794)
KAWAKAMI Makoto Associate Professor, Akita University, 鉱山学部, 助教授 (90006693)
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| Project Period (FY) |
1985 – 1986
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| Project Status |
Completed (Fiscal Year 1986)
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| Budget Amount *help |
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1986: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1985: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Extremely Stiff Consistency Concrete / Surface Vibrator / Mix Analysis / Mechanical Properties |
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| Research Abstract |
The compaction mechanism was examined based on the vertical movements of each constituent material which were found by mix analysis test results of concrete in prismatic specimen during the vibrating process. Both water cement ratio W/C and air content a were pointed out as the important internal composition factors influencing on mechanical properties, and the relation between a parameter (W/C+k・a) and compressive strength was obtained. Furthermore, since the compaction degree could be evaluated by the parameter, this was applicable to compaction control as a quality characteristic. This was designated as compaction factor CF, and relations between CF and compacting conditions such as vibrator weight, vibrating frequency, amplitude and specimen size were examined.
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