In recent years, the federal government has invested millions of dollars in the Strategic Highway Research Program (SHRP) to investigate ways to improve our roads and highways. A principal objective of this research is to find ways to extend the life and reduce life cycle costs of asphalt pavements. This research has resulted in the adoption of a Performance Grade (PG) asphalt classification system by state Department of Transportation (DOT) agencies. The system’s purpose is to improve and standardize liquid asphalt binders used in asphalt pavements.

PSI has established an Advanced Asphalt Testing Laboratory designed to meet current and future industry requirements. This laboratory is equipped with state-of-the-art equipment to perform the necessary tests for the Superior Performing Pavement (SUPERPAVE) system, such as PG Binder (classification and conformance) and Level I volumetric mix designs.

PSI’s laboratory is equipped with the following:

	Superpave Gyratory Compactor
	Rolling Thin Film Oven
	Pressure Aging Vessel
	Bending Beam Rheometer
	Dynamic Shear Rheometer

PSI’s Advanced Asphalt Laboratory is designed to assist state DOTs, producers, industry suppliers, and contractors as they implement the SUPERPAVE program. PSI’s PG Asphalt Binder Testing and SUPERPAVE Level I Mix Design services provide clients with accurate and objective information on the physical characteristics and anticipated field performance of asphalt pavements.