Estimation of mass transfer in hardened cementitious materials based on the properties of hydration products
| Project/Area Number |
21360204
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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 |
Civil engineering materials/Construction/Construction management
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| Research Institution | Niigata University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | セメント / 水和物 / 物質移動 / 拡散 / C-S-H / C/S比 / カルシウムアルミネート系水和物 / 比表面積 / ゼータ電位 / 酸素拡散係数 / 塩化物イオン拡散係数 / C/Sモル比 / H/Sモル比 / 塩化物イオン拡散 / 酸素拡散 / 屈曲度 / 水和 / C / Sモル比 / 塩化物イオン / フライアッシュ / 高炉スラグ微粉末 |
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| Research Abstract |
The purpose of this study is to formulate the prediction method of mass transfer in concrete based on the properties of hydration products. Composition and physical properties of C-S-H, which is dominant hydration products of cementitious materials, were studied. From the experimental results, the relation between density of C-S-H and C/S molar ratio and the relation between specific surface area of C-S-H and C/S molar ratio were formulated as linear equations respectively independent of source of C-S-H. Diffusion coefficients oxygen and chloride ion through concrete can be predicted by using of the surface area of C-S-H and the volume of micro pore.
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Report
(4 results)
Research Products
(19 results)
