| 粉煤灰对复合胶凝材料硬化浆体微结构的影响 |
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| 引用本文： | 李响,刘仍光,严建军.粉煤灰对复合胶凝材料硬化浆体微结构的影响[J].电子显微学报,2011,30(3):200-205. |
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| 作者姓名： | 李响 刘仍光 严建军 |
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| 作者单位： | 1. 长江科学院水利部水工程安全与病害防治工程技术研究中心,湖北武汉,430010
2. 青岛农业大学建筑工程学院,山东青岛,266109 |
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| 基金项目： | 水利部公益性行业科研专项经费资助项目(200901066); 国家重点基础研究发展计划资助项目(2009CB623106) |
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| 摘 要： | 利用XRD和SEM-EDS对复合胶凝材料硬化浆体微结构进行了研究.结果显示:粉煤灰的掺入使胶凝材料中水泥的比例下降,导致硬化浆体中Ca(OH)2的含量降低,360 d龄期时各样品中仍有Ca(OH)2存在.粉煤灰掺入后,硬化浆体的早期微观结构会较为疏松,随着养护龄期的延长,大量低Ca/Si的C-S-H凝胶生成,使复合胶凝...
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| 关 键 词： | 水泥 粉煤灰 微结构 氢氧化钙 C-S-H凝胶 |
Influence of fly ash on microstructure of complex binder pastes |
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| LI Xiang,LIU Reng-guang,YAN Jian-jun.Influence of fly ash on microstructure of complex binder pastes[J].Journal of Chinese Electron Microscopy Society,2011,30(3):200-205. |
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| Authors: | LI Xiang LIU Reng-guang YAN Jian-jun |
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| Affiliation: | LI Xiang1,LIU Reng-guang2,YAN Jian-jun1(1.Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources,Yangtze River Scientific Research Institute,Wuhan Hubei 430010,2.School of Civil Engineering,Qingdao Agricultural University,Qingdao Shandong 266109,China) |
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| Abstract: | The microstructure of complex binder pastes was investigated by means of XRD and SEM-EDS.The results show that adding fly ash means the decrease of cement content in complex binder,which leads to the decrease of Ca(OH)2 content in complex binder pastes.The Ca(OH)2 crystal still exists in the complex binder pastes at the age of 360 days.By replacing part of cement with fly ash,the early microstructure of complex binder pastes becomes loosened.With the increasing of curing ages,a great quantity of C-S-H gel w... |
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| Keywords: | cement fly ash microstructure calcium hydroxide C-S-H gel |
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