Detecting cracks due to steel corrosion in reinforced cement mortar using intermodulation generation of ultrasonic waves

被引：30

作者：

Miro, M. ^{[1
]}

Eiras, J. N. ^{[2
]}

Poveda, P. ^{[3
]}

Climent, M. A. ^{[1
]}

Ramis, J. ^{[3
]}

机构：

[1] Univ Alicante, Civil Engn Dept, Alicante 03690, Spain

[2] Aix Marseille Univ, LMA, Cent Marseille, CNRS, Marseille, France

[3] Univ Alicante, DFISTS, Alicante 03690, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 286卷

关键词：

Non-linear ultrasonic test; Damage; Cracks; Steel corrosion; Cement mortar; Intermodulation products; DAMAGE ASSESSMENT; NONDESTRUCTIVE EVALUATION; CONCRETE MEMBERS; COVER CRACKING; SPECTROSCOPY; REBAR; INSPECTION;

D O I：

10.1016/j.conbuildmat.2021.122915

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

It has been studied the sensitivity of the technique of intermodulation of ultrasonic waves to detect different damage states of concrete due to embedded steel corrosion. Accelerated corrosion tests have been conducted on reinforced cement mortar specimens, while monitoring the appearance and width evolution of visible surface cracks and performing intermodulation measurements. It has been established a statistically acceptable "upper control limit" for the initial (undamaged) Intensity Modulation Ratio (R) values. After subjecting the samples to the corrosion tests, it was observed that the greater the degree of damage, the higher the value ranges and the variability degree of R. (c) 2021 Elsevier Ltd. All rights reserved.

引用

页数：11

共 65 条

[1]

Abraham O, 2010, WOODHEAD PUBL MATER, P466, DOI 10.1533/9781845699604.2.466

[2]

ACI, 1996, CORR MET CONCR CORR MET CONCR

[3] A design approach for longitudinal-torsional ultrasonic transducers [J].