Assessment of Corroded Rock Bolts with Pulse Echo Tests

Medfouni, E. M. B. I.; Kodjo, Apedovi S.; Rivard, Patrice; Saleh, Kaveh; Quirion, Marco

doi:10.1061/(asce)is.1943-555x.0000360

Cited by 6 publications

(1 citation statement)

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“…The defect or material depth can be obtained by multiplying half of the wave round-trip time by the material sound velocity. Due to the simplicity of detecting the presence and location of defects, ultrasonic pulse-echo testing techniques have been widely used for internal defects detection during aluminum corrosion damage assessments [ 71 , 72 , 73 ]. In contrast to the arrangement of transducers in the ultrasonic pulse-echo testing technique, a pair of aligned transducers, transmitter and receiver, are located on opposite sides of the detected object in the through-transmission method.…”

Section: Technologies For Aluminum Window Inspectionmentioning

confidence: 99%

Deterioration Mechanisms and Advanced Inspection Technologies of Aluminum Windows

2022

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Aluminum windows are crucial components of building envelopes since they connect the indoor space to the external environment. Various external causes degrade or harm the functioning of aluminum windows. In this regard, inspecting the performance of aluminum windows is a necessary task to keep buildings healthy. This review illustrates the deterioration mechanisms of aluminum windows under various environmental conditions with an intention to provide comprehensive information for developing damage protection and inspection technologies. The illustrations reveal that moisture and chloride ions have the most detrimental effect on deteriorating aluminum windows in the long run, while mechanical loads can damage aluminum windows in a sudden manner. In addition, multiple advanced inspection techniques potential to benefit assessing aluminum window health state are discussed in order to help tackle the efficiency problem of traditional visual inspection. The comparison among those techniques demonstrates that infrared thermography can help acquire a preliminary defect profile of inspected windows, whereas ultrasonic phased arrays technology demonstrates a high level of competency in analyzing comprehensive defect information. This review also discusses the challenges in the scarcity of nanoscale corrosion information for insightful understandings of aluminum window corrosion and reliable window inspection tools for lifespan prediction. In this regard, molecular dynamics simulation and artificial intelligence technology are recommended as promising tools for better revealing the deterioration mechanisms and advancing inspection techniques, respectively, for future directions. It is envisioned that this paper will help upgrade the aluminum window inspection scheme and contribute to driving the construction of intelligent and safe cities.

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Section: Technologies For Aluminum Window Inspectionmentioning

confidence: 99%