CTAO Quality Assurance Facility provides value to the Fort Worth District and the Southwestern Division
Patrick Spilman, lab supervisor at the Central Texas Area Office Quality Assurance Facility demonstrates how to operate Superpave Gyratory Compressor, a machine used to determine density values for asphalt. Asphalt is placed in the device and compacted into pucks where then the density values are measured.

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Photo by: Randy Cephus |  VIRIN: 230309-A-KB629-738.JPG