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Audubon Parkway Slab Lifting At Mp 22.75 — Bridge Approach And Departure Settlement, Tim C. Scully Jr.
Audubon Parkway Slab Lifting At Mp 22.75 — Bridge Approach And Departure Settlement, Tim C. Scully Jr.
Kentucky Transportation Center Research Report
The approach/departure Portland Cement Concrete (PCC) panels on the eastbound and westbound side of Audubon Parkway at MP 22.75 over route KY 2120 began to exhibit settlement and cracking in a few locations, which created an uncomfortable ride for motorists. To address this problem, the Kentucky Transportation Cabinet (KYTC) contracted with MasterDry to repair the PCC panel settlement. MasterDry claims that its two-part polyurethane material expands into a rigid foam that fills voids, stabilizes slabs, and lifts concrete. The polyurethane material is injected through 5/8-inch holes drilled in the PCC panel. Once injected, a chemical reaction converts the liquid urethane …