Optimise low temperature performance of asphaltic concrete mixtures. Complies with AASHTO TP10 and EN 12697-46
The Thermal Stress Restrained Specimen Test (TSRST) is used to determine the low temperature cracking susceptibility of asphalt concrete. In the early 1990s the TSRST was developed by OEM with Oregon State University (OSU) as part of the Strategic Highway Research Program. The test method became AASHTO TP10. The TSRST test has also been included as one of the tests within EN12697-46. OEM-Cooper have developed the TSRST device to perform tests included in this standard. Now as a multi-purpose low temperature testing machine, the TSRST has been renamed the Asphalt Pavement Thermal Testing System (APTTS).
With over 20 years of experience, and as the original developers of the TSRST OEM-Cooper are the recognized world experts in the field.
✓ Thermal Stress Restrained Specimen Test (TSRST)
✓ Uniaxial Tension Stress Test (UTST)
✓ Thermal Stress Restrained
✓ Specimen Test (TSRST)
✓ Relaxation Test (RT)
✓ Tensile Creep Test (TCT)
AASHTO TP XX (2012)
Cool or heat an asphaltic concrete specimen at a constant temperature
Simulate actual field conditions with user programmable temperature profiles
Perform cyclic temperature testing
Minimises radial and/or transverse forces with dual clevis and rod end assemblies
Determines the failure characteristics of Asphaltic Concrete (AC) specimens when cooled below freezing according to a user defined temperature profile
Evaluates low temperature performance of field cores from existing roads
Test laboratory compacted cores of new or experimental mixes
Demonstrates the effects on low temperature performance of modified binders and from adding modified to standard binders
User friendly, intuitive and reliable Windows™ software developed using LabVIEW™.
Accessories are not included in the price of main device (unless stated otherwise) and may be purchased separately if required.
Air Dryer and Chiller System Cryogenic air cooled version
Specimen Preparation Kit
Uniaxial Tensile Stress Test according to EN 12697-46
Tensile Creep Test according to EN 12697-46
Relaxation Test according to EN 12697-46
TRSRT according to EN 12697-46
TRSRT according to AASHTO TP10
Technical specifications are subject to change without notice.
Specimen dimensions (W x D x H)
40 x 40 x 160 – 60 x 60 x 250
Ø 40 x 160 – Ø 60 x 250
-20°C per hour as standard
-50 to +50
Screw jack travel mm
Transducers Displacement (AASHTO TP10)
±0.1% Full Scale
Transducers Displacement (EN 12697-46)
-40°C to +40°C
Liquid nitrogen (LN2) or air chiller
¹ others available upon request
Calibration & Maintenance
Calibration, Annual Service and Maintenance Contracts are available for this device. Please enquire for further details.
Note: This is a precision piece of testing equipment. It should be checked by a trained engineer annually.