scholarly journals Non-Contact Measurement to Detect Steel Rebar Corrosion in Reinforced Concrete by Electrochemical Impedance Spectroscopy

2019 ◽  
Vol 166 (11) ◽  
pp. C3316-C3319 ◽  
Author(s):  
Yoshinao Hoshi ◽  
Taisuke Koike ◽  
Hiroyuki Tokieda ◽  
Isao Shitanda ◽  
Masayuki Itagaki ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Contact Measurement ◽  
Steel Rebar ◽  
Rebar Corrosion

scholarly journals Use of Electrochemical Impedance Spectroscopy (EIS) to monitoring the corrosion of reinforced concrete

2015 ◽  
Vol 8 (4) ◽  
pp. 529-546 ◽  
Author(s):  
D.V. RIBEIRO ◽  
C.A.C. SOUZA ◽  
J.C.C. ABRANTES
Keyword(s):  
Reinforced Concrete ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Angular Frequency ◽  
Noise Measurement ◽  
Powerful Technique ◽  
Electrochemical Systems ◽  
New Form

AbstractElectrochemical techniques are among the most commonly techniques used for the evaluation and study of corrosion in reinforced concrete, including electrochemical impedance spectroscopy (EIS). Electrochemical impedance spectroscopy (EIS) is a powerful technique for characterizing a wide variety of electrochemical systems and for determining the contribution of electrode or electrolytic processes in these systems. The analysis of EIS results on samples of concrete is highly complex due to overlapping arcs from simultaneous phenomena and noise measurement, of course, associated with the heterogeneity of the samples and that complicate the analysis considerably. Thus, this paper proposes a new form of analysis based on the characteristic relaxation angular frequency, w, of each phenomenon and associating the typical capacitances and frequencies.

scholarly journals Evaluation of the Corrosion Behavior of Reinforced Concrete with an Inhibitor by Electrochemical Impedance Spectroscopy

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5508
Author(s):  
JangHyun Park ◽  
MyeongGyu Jung
Keyword(s):  
Reinforced Concrete ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Passive Film ◽  
Corrosion Behavior ◽  
Polarization Resistance ◽  
Electrochemical Impedance ◽  
Accelerated Corrosion ◽  
Initial Values

In this study, the effect of NaCl and LiNO2 content on the deterioration of embedded rebars in concrete due to corrosion was examined by measuring the natural potential and impedance. Wet–dry cycles were performed to accelerate the corrosion of embedded rebars in reinforced concrete, following which the potential and impedance corresponding to the cycles were measured. For the reinforced concrete containing only NaCl, the passive film of the embedded rebar surfaces deteriorated after two weeks of accelerated corrosion, and its polarization resistance decreased. When 0.6 M LiNO2 per NaCl was added, the reinforced concrete deteriorated at the same rate as the normal embedded rebars, and the polarization resistance was higher than the initial values. When 1.2 M LiNO2 per NaCl was added, the passive film of the embedded rebars remained intact even after 10 weeks of accelerated corrosion, protecting the rebars from deterioration.

Electrochemical Impedance Spectroscopy as a Practical Tool for Monitoring the Carbonation Process on Reinforced Concrete Structures

2019 ◽  
Vol 44 (12) ◽  
pp. 10087-10103 ◽  
Author(s):  
Héctor Herrera Hernández ◽  
Francisco González Díaz ◽  
Gerardo Del Jesús Fajardo San Miguel ◽  
Julio César Velázquez Altamirano ◽  
Carlos Omar González Morán ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Carbonation Process ◽  
Practical Tool
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