2013 Fiscal Year Final Research Report
Optimum material design method of concrete using as an index silicate structure of cement hydrate
| 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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| 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 |
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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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