The Pavetest AMPT is a servo-hydraulically controlled testing machine specifically designed to perform the three asphalt tests developed under NCHRP Projects 9-19 and 9-29; Dynamic Modulus, Flow Number and Flow Time. It is also the prescribed equipment in AASHTO T378-17 Standard Method Test for Determining the Dynamic Modulus and Flow Number for Hot Mix Asphalt (HMA) using the Asphalt Mixture Performance Tester (AMPT). In addition, the Pavetest AMPT can also perform Direct Tension Cyclic Fatigue, Indirect Tensile Dynamic Modulus, Incremental Repeated Load Permanent Deformation, Semi-circular bend, and Overlay Testing of Asphalt Mixtures. The Pavetest AMPT is underpinned by Pavetest’s leading edge CDAS digital controller, TestLab software and a full complement of accessories, hardware and software in perfect unison.
Main Features
- Thermoelectric (TE) Heating/Cooling
- More reliable and environmentally friendly than mechanical refrigeration & heating elements.
- The unit can be equipped with water cooled TE heating /cooling technology (optional).
- Magnetically mounted on-specimen transducer system, based on loose core LVDTs or optional epsilon extensometers.
- Gauge point fixing jig facilitates gluing gauge points and the (top and bottom) platens for proposed AMPT
- Direct Tension Cyclic Fatigue (S-VECD) Test.
- Dynamic Verification Device.
- DynafloTM HPS provides dynamic speed control of the pump motor ensuring quiet operation.
- Optional built-in, silent, air compressor with associated air preparation equipment.
The machine includes:
...8 Channel Control and Data Acquisition System (CDAS) & TestLab software
...30 mm Actuator LVDT
...Load cell (± 20 kN)
...Pressure transducer (± 300 kPa)
...Temperature transducer (-80 °C to + 80 °C)
...Magnetically mounted on-specimen LVDT (2 mm) (3 pieces)
...105 mm bottom loading platen
...105 mm top loading platen
It requires pressurized air, minimum 7 bar (not included).
Load capacity: 19kN (Static) - 17kN (Dynamic)
Actuator stroke: 30 mm
Specimen size: 100 mm (diameter) x 150 mm (h)
Temperature range: 0 °C to 70 °C (B200) -10 °C to 70 °C *(B200L)
Confining pressure: 0 to 225 kPa
Noise level: Less than 70 db at 2 m
Power Supply: 230V 50-60Hz 1ph 3.5kW (B200 | B200L)
Dimensions: 1510(h) x 680(d) x 1200(w) mm 1870(h) x 680(d) x 1200(w) mm with raised cell
Weight: 330 kg approx. (including oil)
* At an ambient temperature of +23 °C