Asphalt Pavement Thermal Testing

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Meets AASHTO TP10- Thermal Stress Resistance Specimen Test  (TSRST), AASHTO Designation- TP XX (UTSST)

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

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Simulate actual field conditions with user programmable temperature profiles

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The TSRST4.5 software controls your test, logs data, plots the data points and produces graphs

Original developers of the TSRST

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 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-Cox are the recognized word experts in the field.

  • 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
  • Minimizes radial and/or transverse forces with dual clevis and rod end assemblies
  • Made in USA
Specimen dimensions Prismatic Cylindrical 40 x 40 x 160 – 60 x 60 x 250 mm (1.6 x 1.6 x 6.3 – 2 x 2 x 9.8 inch) Ø 40 x 160 – Ø 60 x 250 mm (Ø 1.6 x 6.3 – Ø 2 x 9.8 inch)
Temperature -50 to +50 °C (-58 to 122 °F)
Force 22.5kN (5000lbf) max
Screw jack travel ±150 mm (±6inch)
Transducers Displacement (AASHTO TP10) Range Resolution Accuracy ±0.5 (±0.2 inch) 0.05 μm (2 millionths of an inch) ±0.1% Full Scale
Transducers Displacement (EN12697-46) Range Resolution Accuracy ±2.5 mm (±0.1inch) <0.05 μm (2 millionths of an inch) ±0.1% Full Scale
Transducers Load Range Resolution Accuracy 22.5 kN (5000lbf) 0.5 N (0.11lbf) ±0.1% Full Scale
Transducers Temperature Range Resolution Accuracy -70 °C to + 180 °C (-94 to +356 °F) 0.1 °C (0.18°F) 0.3 °C (0.54°F)
Cooling agent Liquid nitrogen (LN2)

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Years of Experience In The Field

Optimize low temperature performance of asphaltic concrete mixtures

  • Meets AASHTO TP10 100%
  • Accuracy of Results 100%
  • Technical Support 100%
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