| 高强微膨胀钢管混凝土的界面过渡区结构 |
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| 引用本文： | 吕林女,何永佳,李悦,胡曙光.高强微膨胀钢管混凝土的界面过渡区结构[J].华中科技大学学报(自然科学版),2003,31(11):89-91. |
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| 作者姓名： | 吕林女 何永佳 李悦 胡曙光 |
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| 作者单位： | 1. 武汉理工大学,结构工程与力学系
2. 武汉理工大学,材料学院 |
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| 基金项目： | 国家高技术研究发展计划资助项目 (2 0 0 1CB61 0 70 4 2 )，湖北省自然科学基金资助项目 (2 0 0 2AB0 75 ) |
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| 摘 要： | 应用XRD，SEM，EDXA等测试手段，从钢-膨胀水泥石界面过渡层中各种元素离子的分布状况以及具有显著特点的CH相和AFt相的形态、CH取向度等方面研究了钢-膨胀水泥石界面过渡区的结构，并对限制条件下钢-膨胀水泥石界面结构的改善进行了讨论．研究结果表明，刚性限制条件下水泥石界面过渡区结构得到了显著改善；钢-膨胀水泥石界面区中CH的空间生长情况优于钢-普通水泥石界面区中CH的空间生长情况，Si元素质量分数高于后者，Ca元素质量分数低于后者。
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| 关 键 词： | 钢管混凝土 微膨胀 界面过渡区 微观结构 高强混凝土 |
| 文章编号： | 1671-4512(2003)11-0089-03 |
| 修稿时间： | 2003年4月3日 |
The microstructure of the interfacial transition zone on steeltube-high strength expansive concrete |
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| Lu Linnu He Yongjia Li Yue Hu Shuguang Dr., Dept. of Structural Engineering and Mechanics,Wuhan University of Technology,Wuhan ,China..The microstructure of the interfacial transition zone on steeltube-high strength expansive concrete[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(11):89-91. |
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| Authors: | Lu Linnu He Yongjia Li Yue Hu Shuguang Dr Dept of Structural Engineering and Mechanics Wuhan University of Technology Wuhan China |
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| Institution: | Lu Linnu He Yongjia Li Yue Hu Shuguang Dr., Dept. of Structural Engineering and Mechanics,Wuhan University of Technology,Wuhan 430070,China. |
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| Abstract: | By XRD, SEM, and EDXA test methods, the microstructure of the steel-expansive cement paste interfacial transition of steel tube-high strength expansive concrete was investigated. The improvement of the microstructure of steel-expansive cement paste interface in the confined condition was discussed. The results indicated that CH spatial growth situations of steel-expansive cement interface are better than steel-ordinary cement interface. The crystal sizes of CH and AFt of the former are less than those of the latter, the relative percentage of Si of the former is higher than that of the latter, and the relative percentage of Ca of the former is less than that of the latter. |
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| Keywords: | steel tube-concrete micro-expansive interfacial transition zone microstructure |
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