| Project/Area Number |
23560555
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | Nihon University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KOIZUMI Koshiro 日本大学, 理工学部, 講師 (10312042)
SATO Masaki 日本大学, 理工学部, 助手 (50580164)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | コンクリート / セメント / フライアッシュ / シリカフューム / 水和反応 / 圧縮強度 / ポゾラン反応 / ケイ酸カルシウム水和物 / 水結合材比 / 混和材 / ケイ酸構造 / 水酸化カルシウム / 蒸気養生 / ケイ酸カルシウム |
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| Research Abstract |
The material design of concrete combination of materials using industrial wastes and cement, knowing the material properties from the time variation of the physical and chemical properties of the microstructural constituents in the concrete is indispensable. This study revealed the relationship between the strength development characteristics and the degree of polymerization of silicic acid chain of calcium silicate hydrate which accounts for the majority of the cement hydrates. As a result, a strong correlation was observed in the compressive strength and the rate of change of the average polymerization degree of the composition ratio of the silicate chain length structure of calcium silicate hydrate. Accordingly, average degree of polymerization composition silicate chain length structure of calcium silicate hydrate has revealed that it is an important indicator in the optimum material design of the concrete.
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