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Mixing Laboratory


Within the mixing laboratory, asphalt concrete sample preparation is carried out using SHRP approved procedures incorporating the Superpave Gyratory compactor and Marshall hammer methods. The laboratory contains a number of standard and specialized equipment including:

  • Two Troxler gyratory compactors
  • IPC Servopac compactor
  • Four large ovens for reliable sample fabrication and conditioning
  • Water bath for sample conditioning
  • Suspended in water balance measurement for specific gravity determination
  • Corelok apparatus for specific gravity determination of aggregates and mixture
  • Troxler ignition oven for QC/QA operations
  • High efficiency ventilation systems
  • Mixing bowls, blades, whips, spoons, spatulas, and other miscellaneous tools