Reinforced Concrete Vertical Impedance Scanning
Reinforced Concrete Vertical Impedance Scanning is a new technology that measures how easily current flows
from the surface of a bridge deck to the underlying rebar. This measurement is highly correlated to a bridges
susceptibility to chloride ingress which is one of the leading causes of bridge deck deterioration.
This technology is expected to make a significant impact in the field of non-destructive bridge inspection.
It is one of the only non-destructive testing technologies that is effective on asphalt overlaid bridges.
Also due to the high sample rates possible using this technique allows for over 100X faster scanning speeds
of more traditional scanning techniques such as chaining.
J. Baxter, L. Hendricks, W. S. Guthrie, and B. A. Mazzeo. Instrumentation for Multi-Channel Vertical Electrical Impedance Scanning of Concrete Bridge Decks. Engineering Research Express 2, 035010 (2020).
J. Barton, J. Baxter, W. S. Guthrie, and B. A. Mazzeo. Vertical electrical impedance scanner for non-destructive concrete bridge deck assessment without a direct rebar connection. Materials Evaluation 77 (10), 1258-1266 (2019).
J. Barton, J. Baxter, W. S. Guthrie, and B. A. Mazzeo. Large-area electrode design for vertical electrical impedance scanning of concrete bridge decks. Review of Scientific Instruments 90, 025101 (2019).
P. D. Bartholomew, W. S. Guthrie, and B. A. Mazzeo. Vertical impedance measurements on concrete bridge decks for assessing susceptibility of reinforcing steel to corrosion. Review of Scientific Instruments 83, 085104 (2012).