Dissolution Phenomena of CaO-SiO_2-H_2O Gel at Ca/Si>1 Coexisting with Ettringite System
スポンサーリンク
概要
- 論文の詳細を見る
We have studied the influence of interaction between CaO-SiO2-H2O (C-S-H) gel and ettringite (AFt) on their dissolution regarding the initial chemical feature of degraded cement pore water. In this work, firstly dissolution experiments were performed in C-S-H gel at Ca/Si=1.0, 1.2 and 1.47 coexisting with AFt of which amount was 5% of mol corresponding to each C-S-H gel. Secondly, assuming the congruent dissolution of AFt, dissolution of the same system was calculated by combining with the dissolution model of C-S-H gel at 1<Ca/Si≤1.5, considering without interaction between C-S-H gel and AFt. Measured and calculated results of Ca, Si, Al and S total concentrations and pH values of C-S-H gel coexisting with AFt system were investigated. Discrepancies between experimental and calculated Ca, Si, Al and S total concentrations and pH values suggested the importance of interaction phenomena in C-S-H gel coexisting with AFt system. By considering the substitutions of Al(OH)4− and SO42− with Si tetrahedra in the structure of C-S-H gel, these discrepancies are discussed in this study.
- 社団法人 日本原子力学会の論文
- 2000-09-25
著者
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Nagasaki Shinya
The University Of Tokyo Graduate School Of Frontier Science Institute Of Environmental Studies
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Nagasaki Shinya
Department Of Environment Studies School Of Frontier Sciences Tokyo University
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Takagi Shunji
Mitsubishi Research Institute Inc.
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Sanami T
Department Of Quantum Science And Energy Engineering Tohoku University
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Tanaka Satoru
Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University
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Tanaka S
Takasaki Research Establishment Japan Atomic Energy Research Institute
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Iwaida T
The University Of Tokyo Graduate School Of Engineering Department Of Quantum Engineering And Systems
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Tanaka Satoru
Department Of Cardiovascular Medicine Gifu Pref. Govt. Tajimi Hospital
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Tanaka S
The University Of Tokyo Graduate School Of Engineering Department Of Quantum Engineering And Systems
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HAGA Kazuko
Taiheiyo Consultant Co., Ltd.
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RAHMAN Md.Mazibur
Department of Quantum Engineering and Systems Science, The University of Tokyo
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IWAIDA Takeshi
Department of Quantum Engineering and Systems Science, The University of Tokyo
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HAGA Kazuko
Environmental Materials department, OTEC Co.Ltd.
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Haga K
Taiheiyo Consultant Co. Ltd.
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Nagasaki S
The University Of Tokyo Graduate School Of Frontier Science Institute Of Environmental Studies
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Rahman Md.mazibur
Department Of Quantum Engineering And Systems Science The University Of Tokyo
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Tanaka Satoru
Department Of Anesthesiology Sapporo Medical University School Of Medicine
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Rahman Mazibur
Department of Quantum Engineering and Systems Science, The University of Tokyo
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