International Conference on Sustainable Infrastructure 2019
Magnetic Corrosion Detection in Concrete Structures
Publication: International Conference on Sustainable Infrastructure 2019: Leading Resilient Communities through the 21st Century
ABSTRACT
Over the last few decades, magnetic-based nondestructive evaluation (NDE) methods, including the magnetic flux leakage (MFL) concept, have been studied through numerical simulation, experimental work, and field testing for detecting flaws such as corrosion in reinforcing and prestressing steels within concrete structures. This article summarizes the results of 3D transient finite element solutions (ANSYS Maxwell) and laboratory investigations to determine prestressing steel corrosion detection capability of the MFL concept under several configurations. The concept is based on introducing a DC magnetic field in the vicinity of the reinforcing steel within concrete and detecting changes in the induced magnetic field due to the presence of corrosion. Magnetic sensors are installed in orientations so the magnetic field variations in different planes are evaluated. This article will report on good correlations between the results from the simulation and experimental investigations.
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Published In
International Conference on Sustainable Infrastructure 2019: Leading Resilient Communities through the 21st Century
Pages: 175 - 184
Editors: Mikhail V. Chester, Ph.D., Arizona State University, and Mark Norton, Santa Ana Watershed Project Authority
ISBN (Online): 978-0-7844-8265-0
Copyright
© 2019 American Society of Civil Engineers.
History
Published online: Nov 4, 2019
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