Evaluation of Long-Term Impacts of Early Opening of Concrete Pavements
Project Start Date: December 11, 2017
Project End Date: August 31, 2021
This project will help to establish a method for determining when a Portland Cement Concrete (PCC) pavement or patch can be opened earliest to traffic without compromising its long-term performance. To achieve it, the very early-age fatigue damage and associated long-term distress in PCC pavement subjected to early opening will be evaluated and monitored. This will verify early-opening methodologies recent research has proposed. The objectives of this study will be:
- Evaluate visible and non-visible immediate and long-term damage caused by early age loading. To achieve it, a comprehensive analysis of sensor reading and non-destructive test results should be conducted.
- Quantify the effect of early loading damage on long-term performance.
- Determine minimum strength at opening or other measurable variables associated with this parameter.
- Recommend strategies for minimizing or avoiding early loading damage detrimental to long-term performance.
Original Need Statement: Early Opening Strength to Traffic (doc) - June 20, 2017
Task 1: Synthesis
Task 2: Evaluation of early loading damage
Task 3: Year 1 cell performance report
Task 4: Year 2 cell performance report
Task 5: Development of early opening to traffic criteria
Task 6: Compile report, Technical Advisory Panel review and revisions
Task 7: Editorial review and publication of final report
- Final published report (pdf), 10/12/2021
Task 8A: Initial memorandum on research benefits and implementation steps
Task 8B: Finish memorandum on research benefits and implementation steps
Principal Investigator: Lev Khazanovich, Professor, The University of Pittsburgh
Technical Liaison: Bernard Izevbekhai, Research Operations Engineer, MnDOT
Project Technical Advisory Panel (TAP) – Email the TAP
- Tom Burnham, MnDOT
- Bernard Izevbekhai, MN
- James Krstulovich, Illinois DOT
- Maria Masten, MnDOT
- Jim Wilde, MSU
Final published report (pdf), 10/12/2021