About the research
The Central Iowa Expo facility is located in Boone, Iowa. The Iowa DOT initiated a research project (IHRB Project TR-671) to implement foundation stabilization technologies (Phase I), construction of the pavement layers using intelligent compaction technology (Phase II), and non-destructive evaluation of pavement systems right after construction (Phase III).
Falling Weight Deflectometer (FWD) tests were performed on the pavement layer and ground penetrating radar tests were performed to evaluate thickness of the asphalt layer and moisture conditions of the base layer. This project includes an assessment of those tests.