Examples of reinforcement corrosion monitoring by embedded sensors in concrete structures |
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| Authors: | I. Martínez C. Andrade |
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| Affiliation: | 1. College of Defense Engineering, Army Engineering University of PLA, Nanjing 210007, China;2. No. 31620 Army of PLA, Xuzhou 221000, China;1. Civil Engineering Department, Lovely Professional University, Phagwara, India;2. Civil Engineering Department, Thapar Institute of Engineering & Technology, Patiala, India;3. Mechanical Engineering Department, Thapar Institute of Engineering & Technology, Patiala, India;4. Civil Engineering Department, Curtin University, Bentley, WA 6102, Australia;1. School of Civil Engineering, Central South University, Changsha, Hunan 410075, China;2. School of Civil Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China;3. Shandong Provincial Key Laboratory of Construction Materials Preparation and Measurement, University of Jinan, Jinan, Shandong 250022, China;1. Beijing Advanced Innovation Center for Materials Genome Engineering, Key Laboratory for Corrosion and Protection (MOE), Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China;2. School of Material Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China |
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| Abstract: | An increasing number of concrete structures are being monitored to enhance their durability. However, the literature provides only some guidance for the interpretation of the monitoring results [Broomfield JP. Corrosion of steel in concrete, understanding investigation and repair. 2nd ed. UK: Taylor & Francis; 2006; Andrade C, Alonso C. On-site measurements of corrosion rate of reinforcements. Constr Build Mater 2001;15(2–3):141–45; EN 206 2000. Concrete—Part 1: specification, performance, production and conformity]. Past experience shows the difficulty of interpreting the data collected due to the influence of temperature and moisture, and of using these data to predict future evolution of any deterioration processes.This paper presents several examples of recorded data for corrosion potential, electrical resistance and corrosion rates, along with a methodology to obtain a representative corrosion rate, averaged per year. The representative value can be used in corrosion predictive models to calculate the remaining service life. |
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