2019 Fiscal Year Final Research Report
New material design and mix design methods of concrete based on C-S-H
| Project/Area Number |
17H01285
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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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 | Niigata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
須田 裕哉 琉球大学, 工学部, 助教 (10636195)
佐々木 謙二 長崎大学, 工学研究科, 准教授 (20575394)
斎藤 豪 新潟大学, 自然科学系, 准教授 (90452010)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Keywords | C-S-H / 再生セメント / 体積変化 / 重合度 / 拡散係数 |
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| Outline of Final Research Achievements |
The possibility of the recycled cement was recognized by comparing the generated C-S-H from β-C2S and the starting synthetic C-S-H. It is clarified that the volume change behavior of cement paste is influenced by the structural change depending on the change of the chemical composition of C-S-H during the drying/wetting and carbonation.
The influence of various hydration products on mass transfer was estimated by regression analysis.
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| Free Research Field |
コンクリート工学
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| Academic Significance and Societal Importance of the Research Achievements |
C-S-Hの組成と生成量に立脚したコンクリートの材料・配合設計手法の基礎を構築することができた．これにより，材料として何を使うかでなく，どのような水和物をどれだけ生成させるかという，これまでと全く違った視点で無数の材料・配合の組合せのから最適なものを合理的に選定できることになり，コンクリート材料科学の新しい視点での体系化への途を拓いた．
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