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This report examines how full-depth colored concrete performs in Minnesota roadways, and includes recommendations for improved specifications for construction and for repair of existing installations.

This research investigated the impact of MnDOT implementing a w/cm-based specification for concrete pavements. Pavement sections constructed before and after the specification implementation were examined to assess permeability; compressive strength and air-void system parameters. Pavement management system data was examined to identify changes in ride quality associated with the specification change. The results show the change to a w/cm-based specification resulted in concrete with lower permeability; higher strength; and increased air content. The ride quality for those pavements appears to be better and the rate of degradation of ride quality appears to be slower.