Non-destructive monitoring of incipient corrosion in reinforced concrete with top-bar defect using a combination of electrochemical and ultrasonic techniques

Wang, Yikuan; Mukherjee, Abhijit; Castel, Arnaud

doi:10.1016/j.conbuildmat.2022.129346

Cited by 7 publications

(2 citation statements)

References 41 publications

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“…The Ultrasound Laboratory at National Institute of Metrology, Standardization and Industrial Quality (INMETRO) illustrates the complexity of this transition, highlighting the importance of US metrology, transducer and sensor calibration, and metrological characterization of the ultrasonic field. These measures are essential to ensure accuracy in industrial environments, where quality and efficiency standards are stringent (Brasil, 2020;Y. Wang et al, 2022).…”

Section: Practical Applications Of Ultrasoundmentioning

confidence: 99%

Ultrasonic control of aquatic macrophytes in reservoirs: An integrated review

Sobral,

Menezes,

Araújo

et al. 2024

RSD

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The excessive proliferation of cyanobacteria and aquatic macrophytes in water reservoirs has been a concern for governments, energy companies managing hydroelectric and thermal power plants, and local populations. These aquatic organisms, when overabundant, negatively impact the management of water for public supply and energy generation, obstructing intake systems and damaging water treatment stations. Ultrasound emerges as a potential technique for controlling these organisms. The aim of this study was to perform an integrative review by selecting articles published between 2020 and 2024, focusing on the efficacy and ecological implications of ultrasonic control on these aquatic populations. The methodology involved searching scientific databases, selecting 14 articles out of a total of 42, based on their relevance to the theme of ultrasonic control and its practical applicability. The results indicate that ultrasonic frequencies of 20 kHz collapsed gas vacuoles in these aquatic organisms within 40 seconds of exposure, demonstrating the potential application of this technique in controlling these organisms, although it is necessary to adjust the intensity according to the specific environmental conditions of the reservoir and the biology of the target organisms. However, exposure to ultrasound can release toxins, affect non-target organisms, and alter the aquatic community structure, resulting in negative impacts such as hypoxia and fish death. It highlights the need to adopt an adaptive model to adjust ultrasound parameters and integrate them with other management practices. The study emphasizes the importance of conducting laboratory-scale tests and continuous monitoring to optimize efficacy and minimize environmental risks. Future development of more efficient and less invasive ultrasonic transducers is also recommended, as well as interdisciplinary collaboration to promote more sustainable reservoir management.

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Section: Practical Applications Of Ultrasoundmentioning

confidence: 99%

Ultrasonic control of aquatic macrophytes in reservoirs: An integrated review

Sobral,

Menezes,

Araújo

et al. 2024

RSD

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“…Zhang et al [11] used self-designed nondestructive testing experimental systems for bond quality to detect whether bond systems have defects and determined the number of defects by using the multiscale entropy method. Wang et al [12] used ultrasonic guided wave technology to detect the initial corrosion of reinforced concrete with defects. Their results showed that the method could identify debonding and crack propagation at the interface between the steel bar and concrete.…”

Section: Introductionmentioning

confidence: 99%

Propagation Characteristics of Ultrasonic Guided Waves in Grouted Rockbolt Systems with Bond Defects under Different Confining Conditions

Yu¹,

Chen²,

Wang³

et al. 2023

JMP

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A rockbolt acting in the rock mass is subjected to the combined action of the pull-out load and confining pressure, and the bond quality of the rockbolt directly affects the stability of the roadway and cavern. Therefore, in this study, confining pressure and pull-out load are applied to grouted rockbolt systems with bond defects by a numerical simulation method, and the rockbolt is detected by ultrasonic guided waves to study the propagation law of ultrasonic guided waves in defective rockbolt systems and the bond quality of rockbolts under the combined action of pull-out load and confining pressure. The numerical simulation results show that the length and location of bond defects can be detected by ultrasonic guided waves under the combined action of pullout load and confining pressure. Under no pull-out load, with increasing confining pressure, the low-frequency part of the guided wave frequency in the rockbolt increases, the high-frequency part decreases, the weakening effect of the confining pressure on the guided wave propagation law increases, and the bond quality of the rockbolt increases. The existence of defects cannot change the strengthening effect of the confining pressure on the guided wave propagation law under the same pull-out load or the weakening effect of the pull-out load on the guided wave propagation law under the same confining pressure.

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