Project C21.2022 Summary:
The proposed research merges a materials science and engineering approach to corrosion
science with structural engineering approaches to bridge inspection and assessment to generate
and implement a corrosion prediction model for bridge inspection and asset management systems.
We build on prior work identifying the progression of corrosion as a function of local chloride ion
concentration ([Cl-]). The proposed work includes lab-based objectives that establish thresholds of
local [Cl-] for corrosion formation and impacts of galvanic coupling, sandblast cleaning, and Znbased
coating systems on corrosion rates. Through accelerated corrosion testing, polarization
testing, and characterization of samples, a corrosion prediction model will be built for field-use.
Field-based objectives include comparison of lab-based data to field collected samples and
the validation of the prediction model with data gathered through bridge inspections. By working
closely with two CTDOT technical contacts, we will refine and implement the prediction model
on a selection of pilot bridges in the field. Regular meetings with DOT contacts as well as the
creation of an education and implementation program for the use of the refined model are key
aspects of the technology transfer of the proposed research. This approach is modeled after a
successful project with CTDOT in which a novel 3D scanning inspection methodology was
researched, piloted, and ultimately adopted by CTDOT. The proposed work is highly relevant to
New England bridges where chlorine exposure from water and de-icing salts are common.
Principal Investigator:
Dr. Lesley Frame
Institution:
University of Connecticut
Co-PIs:
Dr. Alexandra Hain
Project Type:
Base-Funded Research
Start Date:
06/03/2022
Project Cost:
$200,062
Project Status:
In Progress
End Date:
06/02/2024
Agency ID:
69A3551847101
Sponsors:
Office of the Assistant Secretary for Research and Technology, University Transportation Centers Program, Department of Transportation, ConnDOT
Implementation of Research Outcomes:
This project is in its initial research phase. Implementation of Research outcomes will be reported upon completion of initial research.
Impacts and Benefits of Implementation:
This project is in its initial research phase. Impacts and benefits of the research will be reported after the implementation phase.
Related Links:
Coming Soon
Downloadable Documents