Project Dates: Jul 1, 2021 - Sept 30, 2023
While Accelerated Bridge Construction (ABC) projects enjoy high material quality due to a large fraction of precast and prefabricated elements, connections between these elements must be placed in-situ. These are often treated as a "weak-link" in the ABC approach due to potential risk for inferior performance. VTrans has adopted the use of rapid-setting concrete (RSC) for construction of connections between precast elements in ABC. Current VTrans practice dictates use of a membrane and overlay on ABC projects due to concerns of poor durability of RSC in ABC connections. There is an urgent need to assess RSC materials designed using the current VTrans special provisions with respect to their durability and structural capactity and propose non-proprietary mix designs or proportion limits that may be adopted by VTrans for RSC to be used in ABC connections.
Reports Archived Documents
Related Symposium Pages:
2023 Symposium Lite
Eshan Dave, Jo E. Sias, Yashar Eftekhar Azam (UNH)
James Lacroix, Geoffrey Dargan, Robert Klinefelter, William Farley, Jim Wild
Poster Presentation at 2024 Transportation Research Board (TRB) Annual Meeting
**Posters, Fact Sheets, Presentation Recordings and Other Materials are prepared for our September Research and Innovation Symposium each year. This page includes the latest materials. Check back in September for updated materials related to this project.