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Publication Details

Target and Tolerance Study for the Angle of Gyration Used in the Superpave Gyratory Compactor (SGC)

General Interest: provides practical guidance to engineers responsible for the day-to-day design, construction, rehabilitation, maintenance, and management of pavements. Research/Reference: useful for researchers doing further work in the pavement area as well as those developing improved testing and design procedures. Includes documents of historical value.

Primary Topic: Pavement Testing

Description: The Superpave gyratory compactor (SGC) is used to compact asphalt specimens for mixture testing in the Superpave system. Five companies currently manufacture SGCs for use in the United States, ­­offering a total of eight different models. Each model employs a unique method of setting, inducing, and maintaining the specified angle of gyration. Calibration systems are required for each device for the angle of gyration. All angle measurements are made externally relative to the mold and none of the calibration systems can be universally used on all of the models.

FHWA Publication Number:

Publication Year: 2002

Document Links: PDF (file size: 0.2 mb)

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Updated: 02/20/2015

United States Department of Transportation - Federal Highway Administration