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Development of Predictive Model for Bridge Deck Cracking and Strength Development

While early-age cracking will not cause failure of a bridge deck system independently, the penetration of deleterious substances through the early-age cracks into the bridge deck concrete and the bridge superstructure can lead to costly serviceability issues, and possibly the loss of some structural integrity. This project evaluated several of the key volume changes and sources of stress that affect bridge deck cracking. The researchers performed extensive laboratory and field research, and implemented the final results into a newly developed bridge-deck-cracking module within ConcreteWorks, a multifaceted software program developed by the same researchers under previous Texas Department of Transportation (TxDOT) funding. This research project has implemented the main findings from this project into a new concrete bridge-deck-cracking module within ConcreteWorks. It is expected that this new module will serve as a useful tool by which TxDOT can improve the performance and durability of concrete bridge decks, which in turn will help to prolong the life of the transportation infrastructure in the state of Texas.