Analysis of corroded concrete beam using secondary-AE

The main causes of structural failure have been steel reinforcement corrosion of reinforced concrete (RC) structures. Early steel corrosion detection could restrict the cost of the rehabilitation work and minimize the extent and location of required repair or replacement. Of the test of deteriorated...

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Bibliographic Details
Main Authors: Zaki, Ahmad, Ibrahim, Zainah
Format: Conference Proceeding
Language:English
Subjects:
Acoustic emission
Concrete
Corrosion
Corrosion effects
Corrosion tests
Damage
Emission analysis
Nondestructive testing
Reinforced concrete
Reinforcing steels
Signal strength
Stress corrosion cracking
Structural failure
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Summary:The main causes of structural failure have been steel reinforcement corrosion of reinforced concrete (RC) structures. Early steel corrosion detection could restrict the cost of the rehabilitation work and minimize the extent and location of required repair or replacement. Of the test of deteriorated concrete beams due to steel corrosion being tested under loading using the non-destructive testing (NDT), i.e., acoustic emission method (AE) is the more efficient method of RC structure evaluation and early corrosion detection. The tests were conducted on corroded beam specimens subjected to cyclic stress before the onset of the initial cracks for a secondary source of AE at the highest load level (i.e., 4 kN). Ib-value and cumulative signal strength (CSS) of AE are recommended to analyze the effects of severe corrosion damage before the initial cracking becomes apparent; as corrosion levels increase, the CSS ratio also increases. It shows that damage caused by a loss in the cross-section of the beams has occurred.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0199677