期刊
MATERIALS
卷 15, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/ma15030857
关键词
nondestructive testing NDT; nondestructive evaluation NDE; magneto-optical (MO) sensor; anisotropic magneto resistance (AMR) sensor; reinforcement bars detection; rebars; concrete inspection; reinforced concrete
类别
资金
- National Science Centre (in polish: NCN-Narodowe Centrum Nauki), program: Preludium [2021/41/N/ST7/02728]
This paper focuses on the impact of magnetization on the detection and evaluation results of reinforced concrete structures, and proposes a new approach to improve measurement results for complex structures using different magnetization methods.
The magnetic method is the most promising method that can be used to inspect large areas of reinforced concrete (RC) structures. Magnetization is a crucial process in this method. The paper aims to present the impact of the magnetization method on the results in the detection of reinforced bars (rebars) and the evaluation of concrete cover thickness in reinforced concrete (RC) structures. Three cases (without magnetization, same pole magnetization, and opposite pole magnetization) were considered in the experiments. Results achieved in all the methods are presented and evaluated. Two different sensing elements were used in the measurements: a magneto-optical (MO) sensor and an AMR sensor. The advantages and disadvantages of both mentioned transducers are presented and discussed in the context of a large areas inspection. The new approach involves using various magnetization methods to improve measurement results for complex structures.
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