(Contract not yet awarded)
Admixtures; Bridge decks; Concrete; Curing agents; Deicing chemicals; Durability; Mix design; Parapets; Salts; Specifications
This project will determine if changes to concrete mix designs, curing methods, admixtures, or salt application can reduce potential damage to concrete in barrier rail, parapets, barriers, and bridge decks. Specification changes and revisions or additions to test methods to better measure the concrete and assess its durability will be recommended. This will be accomplished by working with the 6 districts in Idaho, collecting samples and running tests in the laboratory using samples from concrete barriers, parapets, and bridge decks that manifest durability distress. Recommendations for specification changes and revisions or additions to test methods to better measure the concrete and asses it durability will be developed. This will result in a revision to the Idaho Transportation Department (ITD) Standard Specifications.