Acknowledgments
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This study was sponsored by the National Concrete Pavement Technology Center (CP Tech Center) at Iowa State University through the Sponsored Research Fund and by Federal Highway Administration (FHWA) and the RMC Research and Education Foundation. Various admixtures were donated by Master Builders. The cement was donated by LaFarge and the aggregate by Hallett Materials. The writers acknowledge the assistance of Dr. R. Christopher Williams of Iowa State in obtaining the required asphalt material background and Mr. Tom Brovald of Test Quip, LLC for assistance modifying the gyratory compactor. The opinions, findings, and conclusions presented here are those of the writers and do not necessarily reflect those of the research sponsors.