Serving the needs of liquid asphalt manufacturers and suppliers worldwide since 1919.

AI SPECIFICATION DATABASES
ASPHALT INSTITUTE FOUNDATION
ASPHALT MAGAZINE
R18LabQMS ®
THANK YOU FOR YOUR PATIENCE WHILE OUR WEBSITE IS UNDERGOING AN UPGRADE.
MEMBERS WILL BE UNABLE TO LOGIN DURING THIS TRANSITION.

Mixture Design and Aggregate Testing Services

The Asphalt Institute Laboratory Services provide a full array of aggregate and mixture design testing including:

Mixture Design:

  • Superpave Mixture Design
  • Marshall Mixture Design

Aggregate Testing:

  • Sieve analysis
  • Sand Equivalent
  • Coarse and Fine Aggregate Angularity
  • Coarse and Fine Aggregate Gravity
  • Flat and Elongated Particles

Miscellaneous Tests:

  • Extraction and recovery of mixtures
  • Corelok testing
  • Methylene Blue
  • Micro-Deval

Extraction & Recovery Test:

These tests remove asphalt binder from the asphalt mixture by chemical solvent. They are useful for mixture investigation and research to measure binder properties after the construction or from in-place pavements. First the binder is “washed” from the aggregate using a solvent. Next the mineral fines are removed from the asphalt-solvent blend by a high speed centrifuge. Finally the solvent is removed from the binder using rotary evaporation unit, ASTM D5404.


Request more information about any of the Asphalt Institute Laboratory services.