Damage assessment of the in-service brick masonry structure using acoustic emission technique

Wu, Yanqi; Gu, Sheng; Zhao, Guanghui; Li, Shengli

doi:10.1617/s11527-020-01475-y

Cited by 13 publications

(1 citation statement)

References 41 publications

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“…However, these corrosion monitoring methods are unsuitable for long-term real-time monitoring of structural corrosion. 18,19 The acoustic emission (AE) technique is an effective non-destructive testing method [20][21][22][23] and is widely employed in the health monitoring for concrete strcutures, [24][25][26] masonry structures, 27,28 and so on. In addition, AE technique can also be used to monitor the emergence and development of material corrosion, such as the corrosion of steel bars in concrete 29 and stainless steel.…”

Section: Introductionmentioning

confidence: 99%

Corrosion evaluation of prestressed high‐strength steel wires with impressed current cathodic protection based on acoustic emission technique

Liang

Zhang

2022

Structural Contr & Hlth

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Summary The acoustic emission (AE) technique is a non‐destructive testing method widely used in various structural health monitoring fields, and it is highly sensitive to the emergence and development of material corrosion. This study developed a method of employing the AE technique to evaluate the corrosion degree of stay cable high‐strength steel wires under pre‐stress and impressed current cathodic protection (ICCP) in a simulated marine atmospheric rainwater environment. The variation characteristics of AE parameters under various pre‐stress levels and protection current densities were investigated. Results showed that the more negative the open circuit potentials (OCPs) and the greater the average corrosion rates, the higher the cumulative AE parameters. In the AE intensity analysis of corrosion damage for stay cable high‐strength steel wires, the constants J and the K were taken as 40 and 25 hits, respectively. The corrosion of steel wires was divided into no corrosion, slight corrosion, medium corrosion, and severe corrosion. The corrosion degree of specimens with ICCP was classified as no corrosion and slight corrosion, whereas that of unprotected specimens was classified as medium corrosion and severe corrosion.

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