| 矸石电厂粉煤灰的活化及环保应用 |
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| 引用本文： | 陈杰,黄庆享,石莹.矸石电厂粉煤灰的活化及环保应用[J].西安科技大学学报,2011,31(6). |
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| 作者姓名： | 陈杰 黄庆享 石莹 |
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| 作者单位： | 1. 西安科技大学材料科学与工程学院,陕西西安,710054
2. 西安科技大学能源学院,陕西西安 710054;教育部西部矿井开采及灾害防治重点实验室,陕西西安 710054 |
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| 基金项目： | 国家自然科学基金，陕两省科技厅社发攻关项目，榆林市产学研合作项目，陕西省教育厅重点实验室研究计划项目 |
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| 摘 要： | 研究了物理活化、化学活化及联合活化(物理活化+化学活化)技术对矸石电厂粉煤灰-水泥胶砂试样不同龄期抗压、抗折强度的影响,结合不同活化方式28 d净浆试样的扫描电镜分析,揭示了矸石电厂粉煤灰的活化机理.研究结果表明,化学活化能够较大幅度提高矸石电厂粉煤灰的活化效果,成本低廉,适用于煤炭企业的充填与支护,有利于降低充填成本.对于矸石电厂粉煤灰的活化技术从优到劣的顺序为:联合活化＞化学活化＞物理活化.研究成果对于循环经济与环境保护具有重要意义.
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| 关 键 词： | 矸石电厂 粉煤灰 环境保护 |
Activation and environmental application of fly ash from coal gangue-burning power plant |
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| CHEN Jie,HUANG Qing-xiang,SHI Ying.Activation and environmental application of fly ash from coal gangue-burning power plant[J].JOurnal of XI’an University of Science and Technology,2011,31(6). |
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| Authors: | CHEN Jie HUANG Qing-xiang SHI Ying |
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| Institution: | CHEN Jie1,HUANG Qing-xiang2,3,SHI Ying1 (1.College of Material Science and and Engineering,Xi'an University of Science and Technology,2.College of Energy Science and Engineering,3.Key Laboratory of Western Mine Exploitation and Hazard Prevention of Ministry of Education,Xi'an 710054,China) |
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| Abstract: | The influence of physical activation,chemical activation and their combination on compressive strength and flexural strength of cement-fly ash from coal gangue-burning power plant mortar at various age were studied.Combining pastes samples SEM analysis of 28d age under the different activation technology,the activation mechanism of fly ash from coal gangue-burning power plant was revealed.The research results showed that the chemical activation can improve significantly activation effect of fly ash from coa... |
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| Keywords: | coal gangue-burning power plant fly ash environmental protection |
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