福州大学学报（自然科学版）2026，Vol.54Issue(3)：333-341,9.DOI:10.7631/issn.1000-2243.25183
混凝土中的Cl-质量分数和含水状态对探地雷达信号的影响
Influence of Cl-mass fraction and moisture state in concrete on ground penetrating radar signals
摘要
Abstract
In order to explore the influence of concrete water content and chloride ion(Cl-)on ground penetrating radar(GPR)signal and its coupling law,dry and saturated concrete samples with different Cl-mass fractions were prepared in this study,and 1.6 and 2.6 GHz antennas were used for detection.The influence of the change of electromagnetic parameters of concrete caused by the change of water and Cl-on radar wave propagation was analyzed,and the most sensitive radar signal properties to the two were identified.The results show that the direct wave amplitude and the measured average A-scan continuous wavelet transform(CWT)energy peak of the sample decrease with the increase of Cl-mass fraction,and the sensitivity to Cl-mass fraction change at 1.6 GHz is higher than that at 2.6 GHz.The presence of water enhances the response ability of radar signal to the change of Cl-mass fraction.Under dry conditions,the peak energy of CWT showed the most sensitive response to the change of Cl-mass fraction.关键词
探地雷达/Cl-/电磁波/无损检测/混凝土Key words
ground penetrating radar/chloride ion/electromagnetic wave/non-destructive test/concrete分类
建筑与水利引用本文复制引用
何百川,洪舒贤,黄祖铭..混凝土中的Cl-质量分数和含水状态对探地雷达信号的影响[J].福州大学学报（自然科学版）,2026,54(3):333-341,9.基金项目
国家自然科学基金资助项目(U24A20166) （U24A20166）
