| 研究課題/領域番号 |
18K04297
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| 研究機関 | 北海道大学 |
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研究代表者 |
Y Elakneswaran 北海道大学, 工学研究院, 准教授 (60769090)
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| 研究期間 (年度) |
2018-04-01 – 2021-03-31
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| キーワード | Cement chemistry / C-A-S-H / Surface complexation / Modelling |
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| 研究実績の概要 |
This year focused on the interaction of ions with C-S-H and C-A-S-H. Two types of experiment were conducted: to develop model and to verify the model. Although the proposal included the investigation of absorption and exchange, the research work focused on adsorption as the dominant mechanism for incorporation of cations and anions. A triple-layer surface complexation model was developed, and the associated equilibrium constants for deprotonation, calcium and chloride adsorption were determined by fitting experimental data of potentiometric titration and zeta potential measurement results. The estimated surface complexation modelling parameters were verified by predicting the experimental data of calcium and chloride adsorption on the synthesised C-S-H and C-A-S-H gel.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
I focused on calcium and chloride ions and could not consider Na+, K+ and Cs+, which will be consider next year.
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| 今後の研究の推進方策 |
WP 6: Chloride ingress, sulfate ingress, and alkali silica reaction experiments in slag containing paste
WP7: Development and verification of integrated thermodynamic model
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| 次年度使用額が生じた理由 |
I spent less money on renting equipment for experiments. I will use it in this year for employing part-time student to help experiment.
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