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| 摘要: |
| 研究了３种混凝土在冻融循环过程中交流阻抗谱的变化，据此以对混凝土在冻融循环过程中微结构的变化和混凝土经冻融循环而遭受破坏的机制有所了解，交流阻抗方法还可用于经少量冻融循环次数后对混凝土长期抗冻性能进行推测。 |
| 关键词: 冻融循环 交流阻抗方法 混凝土 抗冻性能 |
| DOI： |
| 分类号:TU528.01 |
| 基金项目: |
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| Study of Freezing and Thawing Test of Concrete by AC Impedance Technique |
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YANG Zheng hong SHI Mei lun
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| Abstract: |
| The variation of AC impedance spectra of three different types of concrete in the course of freezing and thawing cycle has been studied. The change of microstructure of concrete during freezing and thawing process, the mechanism of damage of concrete after freezing and thawing cycles can be known through the variation of their AC impedance spectra. AC impedance technique can also be applied to predict long term frost resistance of concrete after only very few cycles of freezing and thawing. |
| Key words: freezing and thawing cycle,method of AC impedance,concrete |
