非破壞性透地雷達法於鋼筋腐蝕檢測之應用

Application of Non-destructive Ground Penetrating Radar Method in Rebar Corrosion Inspection

張奇偉(Chang,Che-Way) ； 蔡哲安(Tsai Che An) ； 林鎮華(Lin Chen Hua)

《防蝕工程》 34卷2期 (2020/06) Pp. 32-43

https://doi.org/10.6376/JCCE.202006_34(2).0003

摘要

本研究將推導整合透地雷達電電磁波掃描數位編碼訊號及電磁波波傳理論探討鋼筋腐蝕生成物界面反射電壓應用於混凝土構件腐蝕鋼筋檢測並與腐蝕鋼筋之腐蝕化學電位比較.應用電磁波於不同介電常數材料之反射電壓特徵識別鋼筋腐蝕程度，同時透地雷達法不須局部破壞混凝土表面與鋼筋形成通路的限制，可以直接檢測混凝土內鋼筋腐蝕程度。

關鍵字

透地雷達 ； 電磁波 ； 反射電壓 ； 鋼筋腐蝕

並列摘要

This study will derive and integrate the digital coded signal of ground- -penetrating radar electromagnetic wave scanning and electromagnetic wave transmission theory to explore the application of the reflected voltage of the corrosion product interface of steel reinforcement to the detection of corroded steel bars in concrete components and compare it with the corrosion chemical potential of corroded steel bars. Application of electromagnetic waves, the reflected voltage characteristics of various dielectrics constant materials identify the corrosion degree of steel bars, and the ground-penetrating radar method does not need to locally destroy the restriction of the concrete surface and the channel formed by the steel bars, and can directly detect the corrosion degree of the steel bars in the concrete.

並列關鍵字

Ground Penetrating Radar ； Rebar Corrosion ； Reflection Voltage