Correlation Between Deck Patching Quantities and Chloride Concentration Levels
Prediction of deck patching quantity that reflects the reinforced concrete (RC) deck damage condition enables better bridge asset management at a network level. Chloride induced-corrosion is the major contributor to the RC deck deterioration and accordingly, the chloride concentration levels that control the corrosion process are believed to have correlation with the deck repair quantity. The Minnesota Department of Transportation (MnDOT) has gathered deck patch data for bridge deck repair projects in recent years and has also developed a chloride concentration model with the capability of predicting chloride concentration penetration into the deck thickness over time for cracked and uncracked concrete. The collected deck patch data and the developed chloride model make it possible to obtain deck patching predictive models that are functions of chloride levels and other influencing factors. To develop the desired patching prediction model, three objectives are proposed: (1) identify all key influencing factors, (2) quantify the relationship between influencing factors (basic variables) with the patch level (response) through nonlinearity and interactions, and (3) determine the most appropriate statistical model considering accuracy and complexity. To meet project objectives, the relationship between the influencing factors and the patching quantity will be modeled through explanatory functions utilizing existing corrosion mechanistic models and genetic programming. Several statistical models in three different approach categories (i.e., regression, Markov-based, and unsupervised machine learning) will be developed and the best model for the MnDOT implementation will be selected.
Language
- English
Project
- Status: Active
- Funding: $185,233.00
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Contract Numbers:
1036335 WO#2
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Sponsor Organizations:
Minnesota Department of Transportation
395 John Ireland Boulevard
St Paul, MN United States 55155 -
Managing Organizations:
Minnesota Department of Transportation
Office of Research & Innovation
395 John Ireland Boulevard, MS 330
St. Paul, MN United States 55155-1899 - Performing Organizations: Milwaukee, Wisconsin United States 53233
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Principal Investigators:
Huang, Qindan
- Start Date: 20230626
- Expected Completion Date: 20260228
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Bridge decks; Chlorides; Corrosion protection; Patching; Reinforced concrete
- Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials;
Filing Info
- Accession Number: 01961160
- Record Type: Research project
- Source Agency: Minnesota Department of Transportation
- Contract Numbers: 1036335 WO#2
- Files: RIP, STATEDOT
- Created Date: Jul 18 2025 12:02PM