DocumentCode :
2808282
Title :
Monitoring accelerated corrosion in chloride contaminated concrete with ground penetrating radar
Author :
Hong, S.-X. ; Lai, W.L. ; Helmerich, R.
Author_Institution :
Div. 8.2, Fed. Inst. for Mater. Res. & Testing, Berlin, Germany
fYear :
2012
fDate :
4-8 June 2012
Firstpage :
561
Lastpage :
566
Abstract :
This study investigates the effect of chloride contamination and reinforcing steel corrosion in a concrete slab on the ground penetrating radar (GPR) signal. A reinforced concrete slab with two layers of steel bars and chloride contamination was used in this study. The corrosion process was accelerated by impressed current technique in both wet and dry condition to simulate the corrosion in both wet and dry seasons. During the process, GPR measurements were carried out periodically to monitor signal changes. The results were analyzed to study the GPR signal amplitude, travel time, frequency spectrum and signal energy response to chloride contamination and reinforcing steel corrosion in concrete.
Keywords :
bars; chlorine compounds; contamination; corrosion; ground penetrating radar; radar signal processing; reinforced concrete; steel; GPR measurement; GPR signal amplitude; accelerated corrosion; chloride contamination; dry condition; frequency spectrum; ground penetrating radar; impressed current technique; reinforced concrete slab; reinforcing steel corrosion; signal energy response; steel bars; travel time; wet condition; Conferences; Ground penetrating radar; GPR; chloride; corrosion; reinforcing steel;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ground Penetrating Radar (GPR), 2012 14th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-2662-9
Type :
conf
DOI :
10.1109/ICGPR.2012.6254927
Filename :
6254927
Link To Document :
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