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Ultrasonic imaging for concrete infrastructure condition assessment and quality assurance.
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2017-04-01
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[PDF-21.47 MB]
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Abstract:This report describes work on laboratory and field performance reviews of an ultrasonic shear wave imaging device called MIRA
for application to plain and reinforced concrete infrastructure components. Potential applications investigated included bridge
deck delamination detection, deck thickness profiles, and detection of internal steel bars and dowels. Based on the observed
performance of the unit, three classification categories of applications were defined: field ready, potentially ready, and
challenging. In general, the MIRA device is not well suited to provide full-coverage rapid scans over an entire structure. Rather
MIRA is more suited for targeted inspection or failure analysis to determine general geometric and internal features of concrete
elements because MIRA is able to be quickly deployed for spot inspections with little site preparation. A user’s manual was
produced to assist in introducing new users to the proper operation and interpretation of the MIRA device.
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