高炉水砕スラグ水和反応の液相分析による検討
書誌事項
- タイトル別名
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- Change in the Liquid Concentration during the Hydration of Granulated Blast Furnace Slag
説明
Authors determined the changes in the liquid concentration during the hydration of granulated blast furnace slag, with relatively higher water to solid ratio at 20°C Hydration experiments were carried out using distilled water and NaOH solution.<BR>When slag was hydrated in the presence of no activator, three stages were found ;<BR>1. CaO and SiO2 are dissolved in the ratio of original slag. Dissolution of Al2O3 component is very slow. The concentration of CaO increases linearly with the time.<BR>2. CaO and SiO2 concentrations exceed the saturated concentration with respect to C-S-H. Al2O3concentration increases slowlly. The concentration of CaO increases linearly with the square root of the time.<BR>3. CaO and Al2O3 concentrations become supersaturated with respect to calcium aluminate hydrates.<BR>The dissolution of SiO2 and Al2O3 was promoted when slag was hydrated in NaOH solution. Especially Al2O3 dissolution was markedly affected.It could be concluded that the SiO2-Al2O3 network structure was destroyed at higher pH, and that the behavior of Al2O3 component played an important role in the slag hydration when alkaline activators were added.
収録刊行物
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- 石膏と石灰
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石膏と石灰 1982 (176), 3-8, 1982
無機マテリアル学会
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詳細情報 詳細情報について
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- CRID
- 1390001205389387008
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- NII論文ID
- 130003820710
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- ISSN
- 21854351
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可