2011 Fiscal Year Final Research Report
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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| Keywords | セメント / 水和物 / 物質移動 / 拡散 |
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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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[Remarks] 第39回セメント協会論文賞受賞菊地道生,須田裕哉,佐伯竜彦:酸素および塩化物イオンの実効拡散係数によるセメント系硬化体におけるイオン移動性状の評価,セメント・コンクリート論文集, No.64, pp.346-353, 2010
