An Instrument for Detecting Non Visible Corrosion of Prestressing Strands Using Guided Waves

Jiang Xu; Xin Jun Wu

doi:10.4028/www.scientific.net/AMR.304.200

Paper Titles

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Modeling of Biomimetic Robotic Fish Propelled by Passive Tail with Suitable Rigidity
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Sliding Mode Current Observer for Sensorless Vector Control of PMSM
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Influence of Heat Treatment Temperatures on Properties of Unburned Al₂O₃-C Slide Plate
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An Instrument for Detecting Non Visible Corrosion of Prestressing Strands Using Guided Waves
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Shear Horizontal Surface Waves in a Functionally Graded Magneto-Electro-Elastic Half-Space
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Research and Application on the Crumb Rubber Modified Low-Noise Asphalt Pavement
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Improvements on the Sieve Plate Structure of Movable Sieve Jig
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Preparation and Separation Properties of Cyclodextrin-Segmented PU Membranes
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 304An Instrument for Detecting Non Visible Corrosion...

An Instrument for Detecting Non Visible Corrosion of Prestressing Strands Using Guided Waves

Abstract:

Corrosion of prestressing strands is a main durability issue for prestressing structures. In general, the corrosion zones of strands are hidden in structures which lead to be hardly inspected by traditional methods. An instrument for detecting the non visible corrosion of prestressing strands using magnetostrictive guided waves is provided. The instrument is described in detail. The workflow to detect the strands is provided. Field trials and laboratory experiments show that the information of position, length and amount of the corrosion can be obtained from the data. The instrument provides support for ensuring the safety of prestressing structures.