The Asphalt Institute Laboratory Services provide a full array of aggregate and mixture design testing including:
- Superpave Mixture Design
- Marshall Mixture Design
- Sieve analysis
- Sand Equivalent
- Coarse and Fine Aggregate Angularity
- Coarse and Fine Aggregate Gravity
- Flat and Elongated Particles
- Extraction and recovery of mixtures
- Corelok testing
- Methylene Blue
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.