Asphalt Binder
STATE Testing has one of the few completely independent AASHTO accredited asphalt binder and emulsion testing laboratories in the United States. Being an independent laboratory allows us to give our clients complete confidence in the test results without conflicts of interest.
Our lab specializes in in-depth forensic analysis of asphalt binders. Our extraction and recovery services can be used as a tool to verify asphalt binder integrity, quantify performance of an asphalt mix, and determine the properties of recycled binder sources or asphalt modifiers. This analysis can be used in conjunction with FTIR testing to identify the quantity and type of asphalt modifiers in the binder. Agencies and clients can use this information to make data-driven decisions, optimizing asphalt mix performance for their unique needs.
Asphalt Binder Services
Accelerated Aging of Asphalt Binder Using a Pressurized Aging Vessel
(AASHTO R 28 / ASTM D6521)
Grading or Verifying the Performance Grade of an Asphalt Binder
(AASHTO R 29)
Flash Point by Cleveland Open Cup
(AASHTO T 48 / ASTM D92)
Penetration of Original Sample of Asphalt Cement
(AASHTO T 49)
Float Test for Bituminous Materials
(AASHTO T 50)
Ductility of Bituminous Materials
(AASHTO T 51)
Softening Point of Bitumen (Ring-and-Ball Apparatus)
(AASHTO T 53)
Rolling Thin-Film Oven Testing
(AASHTO T 240 / ASTM D2872)
Force Ductility Test of Bituminous Materials
(AASHTO T 300)
Elastic Recovery Test of Bituminous Materials by Means of a Ductilometer
(AASHTO T 301 / ASTM D6084)
Determining the Flexural Creep Stiffness of Asphalt Binder Using the Bending Beam Rheometer (BBR)
(AASHTO T 313 / ASTM D6648)
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Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
(AASHTO T 315 / ASTM D7175)
Viscosity Determination of Asphalt Binder Using Rotational Viscometer
(AASHTO T 316 / ASTM D4402)
Multiple Stress Creep and Recovery (MSCR)
(AASHTO T 350 / ASTM D7405)
Determining the Continuous Grading Temperatures and Continuous Grades for PG Graded Asphalt Binders
(ASTM D7643)
Recovery of Asphalt from Solution Using the Rotavapor Apparatus
(ASTM D5404)​
See AASHTO Resource website for all accredited test methods.
Emulsified Asphalt
​​​​Demulsibility
(AASHTO T 59)
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Particle Charge
(AASHTO T 59)
Residue by Distillation
(AASHTO T 59)
Residue by Evaporation
(AASHTO T 59)
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Settlement and Storage Stability
(AASHTO T 59)
Sieve Test
(AASHTO T 59)
Saybolt Furol Viscosity at 25°C (77°F)
(AASHTO T 59-T 72)
Saybolt Furol Viscosity at 50°C (122°F)
(AASHTO T 59-T 72)​
See AASHTO Resource website for all accredited test methods.