| Project/Area Number |
12450228
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Building structures/materials
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| Research Institution | Kyushu University |
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Principal Investigator |
MATSUFUJI Yasunori Kyushu Univ., Faculty of Human-Environment Studies, Professor, 大学院・人間環境学研究院, 教授 (20037922)
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| Co-Investigator(Kenkyū-buntansha) |
KOYAMADA Hidehiro Kyushu Univ., Faculty of Human-Environment Studies, Research Associate, 大学院・人間環境学研究院, 助手 (80233625)
YAMAGUCHI Kentaro Kyushu Univ., Faculty of Human-Environment Studies, Assistant Professor, 大学院・人間環境学研究院, 講師 (10274490)
KOYAMA Tomoyuki Kyushu Univ., Faculty of Human-Environment Studies, Associate Professor, 大学院・人間環境学研究院, 助教授 (50215430)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥14,900,000 (Direct Cost: ¥14,900,000)
Fiscal Year 2001: ¥5,900,000 (Direct Cost: ¥5,900,000)
Fiscal Year 2000: ¥9,000,000 (Direct Cost: ¥9,000,000)
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| Keywords | coal ash / concrete / large quantity use / sand replacement / mix proportion principle / performance mechanism / fresh concrete / compressive strength |
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| Research Abstract |
In this study, theories on mix proportion and performance development mechanism of concrete containing large quantity of coal ash which have been shown by the investigators of this research project were experimented and checked.
Many results were confirmed on this concrete, for example, as follows.
1. The greater the coal ash content of concrete with constant cement content, the lower the pore volume over the diameter of 50 nm, although the total pore volume was equal.
As result, the compressive strength of concrete became higher.
2. The relation between the amount of mixing water and void volume composed of powder affected to the consistency of fresh concrete.
The greater the former, the greater the consistency, because the free water was left over.
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