| 低场核磁共振技术在水泥基材料中的应用 |
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| 引用本文： | 李春景,孙振平,李奇,罗琼.低场核磁共振技术在水泥基材料中的应用[J].材料导报,2016,30(13):133-138. |
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| 作者姓名： | 李春景 孙振平 李奇 罗琼 |
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| 作者单位： | 1. 同济大学先进土木工程材料教育部重点实验室,上海,201804;2. 上海东大化学有限公司,上海,201508 |
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| 基金项目： | 国家自然科学基金(51178339) |
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| 摘 要： | 近年来,核磁共振技术已经成为表征水泥基材料水化进程、非化学结合水量和孔结构的一种重要手段。简单介绍了核磁共振基本原理和低场核磁共振主要参数;阐述了低场核磁共振技术在水泥基材料测试中的应用,主要包括水化进程、孔结构、水分迁移和扩散等方面的内容;展望了低场核磁共振技术在水泥基材料研究中的应用前景。
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| 关 键 词： | 核磁共振 水化 孔结构 扩散系数 |
Application of Low-field Nuclear Magnetic Resonance in Cement-based Materials |
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| LI Chunj ing,SUN Zhenping,LI Qi,LUO Qiong.Application of Low-field Nuclear Magnetic Resonance in Cement-based Materials[J].Materials Review,2016,30(13):133-138. |
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| Authors: | LI Chunj ing SUN Zhenping LI Qi LUO Qiong |
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| Abstract: | In recent years, nuclear magnetic resonance has become an important technique for characterizing hydration process, non-chemical bound water and pore structure of cement-based materials. This paper briefly introduces fundamentals of nuclear magnetic resonance and several main parameters about low-field nuclear magnetic resonance, lists the application of low-field nuclear magnetic resonance in cement-based materials, which include hydration process, pore structure, moisture migration and diffusion et al., and provide an outlook on the development trend and prospects of the low-field magnetic resonance applied in cement-based materials. |
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| Keywords: | nuclear magnetic resonance(NMR) hydration pore structure diffusion coefficient |
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