Asphalt Pavement Thermal Testing System

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 multipurpose 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 word experts in the field.

Standard

• AASHTO TP10 Thermal Stress Restrained Specimen Test (TSRST)
• EN 12697 46 Uniaxial Tension Stress Test (UTST), Thermal Stress Restrained, Specimen Test (TSRST), Relaxation Test (RT), Tensile Creep Test (TCT)
• AASHTO TP XX (2012)

Key Features

• Cool or heat an asphaltic concrete specimen at a constant rate or hold 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

Key Uses

• 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

Software

• User friendly, intuitive and reliable Windows™ software developed using LabVIEW™.

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