UTC 2022 Funding - Cycle 1 Research Projects

Project No.: CY1-OU-04
Title: Bond Performance of Advanced Environmentally Friendly Concrete Materials for Rapid Infrastructure Repair and Rehabilitation
Performing Institution: University of Oklahoma
Principal Investigator: Royce Floyd, Jeffery Volz, Shreya Vemuganti, University of Oklahoma
Start and Anticipated Completion Dates: 10/1/2023-09/30/2024
Project description: Portland cement production results in significant environmental impacts. Calcium sulfoaluminate (CSA) cements are a promising alternative to hydraulic cements because of the significant reduction in environmental impacts during production and high early strength (rapid setting) or controlled expansion (shrinkage compensating). These properties make CSA cement attractive and effective for transportation infrastructure, including accelerated repair of pavement and/or mitigation of shrinkage cracking. Half of the bridges in the United States already have or will reach their anticipated design life in the next 10 years. Many of these bridges can have their service life safely extended – with reduced environmental impact – by targeted repair and rehabilitation using CSA cement. Using concrete mix designs developed at the University of Oklahoma (OU), the University of Arkansas, and Louisiana State University, the proposed research will evaluate the ability of CSA cement to bond to traditional concrete substrates and the durability of those bonds over time. The objectives of the proposed study are to (1) Evaluate the bond performance of CSA cement concrete for varying substrate conditions; (2) Evaluate the freeze-thaw durability of CSA cement concrete repairs; and (3) Develop and communicate recommendations for CSA cement concrete repairs.
Click to read more