| 碱激发粉煤灰固定氯离子能力及其机理的研究 |
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| 引用本文： | 张程浩,李悦,刘大成,严建华.碱激发粉煤灰固定氯离子能力及其机理的研究[J].唐山学院学报,2013,26(3):40-42,61. |
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| 作者姓名： | 张程浩 李悦 刘大成 严建华 |
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| 作者单位： | 1. 北京工业大学材料学院,北京,100124
2. 唐山学院环境与化学工程系,河北唐山,063000 |
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| 摘 要： | 分别以氢氧化钙-氢氧化钠溶液、氢氧化钙-氢氧化镁溶液、氢氧化钙-水玻璃体系对粉煤灰进行碱激发,测定对氯离子的固定能力,并对试样进行XRD和SEM微观分析。实验结果表明:不同体系对粉煤灰的激发效果不同,氢氧化钙-氢氧化钠溶液体系对粉煤灰的激发效果最明显,固定氯离子量最高可达59.25%;微观分析表明,不同的碱激发体系和条件下,形成的碱激发产物的数量不同,从而导致了碱激发粉煤灰结合氯离子能力的差异。
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| 关 键 词： | 碱激发 粉煤灰 氯离子 |
The Study of Alkali-activated Fly Ash Fixing Capability of Chloride Ion and its Mechanism |
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| ZHANG Cheng-hao
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LI Yue
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LIU Da-cheng
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YAN Jian-hua.The Study of Alkali-activated Fly Ash Fixing Capability of Chloride Ion and its Mechanism[J].Journal of Tangshan College,2013,26(3):40-42,61. |
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| Authors: | ZHANG Cheng-hao LI Yue LIU Da-cheng YAN Jian-hua |
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| Institution: | 1. Material College, Beijing University of Technology, Beijing 100124, China; 2. Department of Environment and Chemical Engineering, Tangshan College, Tangshan 063000, China) |
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| Abstract: | The calcium hydroxide and sodium hydroxide, calcium hydroxide and magnesium hy- droxide, calcium hydroxide solution and water glass as compound activator in fly ash alkali activa- tion, were explored so as to determine their ability of fixing the chloride ion. Besides, the sam- ples with XRD and SEM were analyzed. The experimental results show. the result is different with different compound activator in fly ash alkali activation; it is the best with the calcium hy- droxide and sodium hydroxide as compound activator in fly ash alkali activation; the ability of fixed the chloride ion is 59.25 %. The microanalysis shows： the amount of alkali-activated prod- uct is different with the different system and conditions, which leads to the different capability of alkali-activated fly ash fixing the chloride ion. |
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| Keywords: | alkali-activated fly ash chloride ion |
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