Corrosion monitoring of the RC structures in time domain: Part I. Response analysis of the electrochemical transfer function based on complex function approximation |
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| Affiliation: | 1. Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Heilongjiang, Harbin 150090, China;2. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China;3. Centre for Composite Material and Structure, Harbin Institute of Technology, Harbin 150090, China;1. Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China;2. Pharmaceutical College of Henan University, Henan University, Kaifeng 475004, China;2. Institution of Entomology, College of Life Science, Nankai University, Tianjin 300071, China;1. Division of Operation and Maintenance Engineering, Luleå University of Technology, Sweden;2. Department of Information Engineering, University of Florence, via S. Marta 3, 50139 Florence, Italy |
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| Abstract: | To finally obtain the overall and fast recognition method for the electrochemical corrosion of reinforced concrete (RC) structures, the complex function algorithm is established to approximate the corrosion transfer function in frequency domain, and then the influence of ZCPE, ZW, Rct and Rc in the universal equivalent circuit (EC) Rc((RctZW)ZCPE) on the time response is discussed in detail. The results indicate that the polynomial complex function can successfully approximate the corrosion transfer function with the given accuracy. The response of Rc((RctZW)ZCPE) in time domain can be achieved by the inverse Laplace transform of the polynomial complex approximation function. |
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| Keywords: | RC structures Corrosion monitoring Time domain Equivalent circuit Complex function approximation |
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