The Model 4140-B Gyratory Compactor is built to SHRP specifications. It produces asphalt specimens that best predict long-term pavement performance. The SHRP Superpave™ program uses specimen height from each gyration during the consolidation cycle as the basis for asphalt mix design
The Troxler Gyratory Compactor is an integral part of the mix design and testing phases of Superpave. The Gyratory Compactor compacts an asphalt specimen by applying a pressure of 600 KPa to the mix while gyrating the mold at an angle of 1.25o. The height of the specimen is continually monitored, providing information on the density of the mix throughout the compaction cycle. This information is recorded and can be sent to a computer, printed, or plotted.