Single, Double & Universal Wheel Trackers

EN 12697-22 | AASHTO T324
Dyna - Track Single Wheel Tracker from CONTROLS

78-PV3502: DYNA-TRACK, Wheel tracking machine. 230 V, 50-60 Hz, 1 ph

Main features:
  • Automatic test control by data acquisition and processing system
  • Large permanent memory to store test data and results
  • RS 232 ports for connection to PC and printer
  • Real time display of number of cycles, rut depth and temperatures
  • Tracks for specified number of passes or to specific rut depth
  • Adjustable load cycle frequency
  • Double temperature measurement: inside the specimen and in the cabinet
  • Test temperature range from ambient to 65°C
  • Motorized loading arm for easy positioning
  • Double glazed doors for observation of testing cycle
  • Testing software included for procedures EN, A and B, and custom defined

The wheel tracking apparatus consists of a loaded wheel, which bears on a sample held on a moving table. The table reciprocates with simple harmonic motion through a distance of 230 ± 5 mm with a frequency of 53 passes (± 1%) per minute. For research purposes the test speed can be adjusted by inverter control. The wheel is fitted with a solid rubber tyre of outside diameter 200 mm. The wheel load under standard conditions is 700 ± 10 N. The wheel tracker is fitted with a temperature controlled cabinet with a temperature range from environment to 65°C ± 1.0°C. The sample may be either a 200 mm diameter core or a 300 x 400 mm slab of asphaltic mixture from 25mm to 100 mm thick. A 25 mm stroke LVDT transducer is included for monitoring rut depth in the centre of a sample during a test to better than 0.1 mm. The deformation and sample temperature is recorded by the internal data acquisition and control system, then sent to the Windows® compatible software.

The Dyna - Track Single Wheel Tracker can be used as part of your Superpave performance based testing program.
DWT Hamburg type Double Wheel Tracker from IPC Global

78-PV31A15: DWT double wheel tracker (Hamburg type). Conforming to AASHTO T324, in-water specimen conditioning. Complete with laptop PC and software. Set of moulds to be ordered separately.
380 V, 50 Hz, 3 ph

78-PV31A25: DWT double wheel tracker (Hamburg type). Conforming to AASHTO T324, in-water specimen conditioning. Complete with laptop PC and software and clear transparent sliding door. Set of moulds to be ordered separately.
380 V, 50 Hz, 3 ph

Main features:
  • Meets and exceeds AASHTO standards and many DOT methods
  • Fully automatic test performance on two specimens or one specimen
  • Variable wheel speed from 20 to 30 cycles/min
  • Fixed table, mobile wheel 230 mm travel
  • Wheel load of 705 N
  • Temperature range from ambient to 80°C (±0.5°C)
  • Accurate temperature control (±0.5°C) for both in water test
  • Rut depth transducers feature 25 mm travel, 0.01 mm accuracy
  • Direct rut depth measurement system, with transducers axially mounted in alignment with the wheel's centre
  • Motorized wheel-assembly lifting system for easy removal of slabs
  • Free access to the wide testing area
  • Optional independent lifting system for double or single wheel testing
  • Slab mould size of 360x300 mm (for 320x260 mm slabs), double 150 mm gyratory compactor cylinders, 200 mm/8"/10" diameter cores
  • Slab thickness adjustable from 40 to 100 mm (in 10 mm steps)
  • Extensive use of stainless steel in the machine's construction; not limited to the parts in contact with water
  • Automatic water filling and leveling system, no need to adjust or control the water level above the specimen during test
  • Possibility to add two optional temperature probes to monitor the two samples temperature
  • Laptop PC control with dedicated software including results performance, test database management and multiple test elaboration

Machine body:
Sheet steel, powder coated. Trasparent sliding door.

Loaded wheel system:
The wheel load is 705 N. The system includes a motorized lifting system for raising the wheel assembly at the end of the test.

Wheel tracking carriage:
The wheel is moved 230 mm backwards and forwards on the top of the slab, which is fixed. The speed is adjustable via the PC from 20 to 30 cycles per minute (40 to 60 passes). The longest slab dimension is oriented to the wheel's direction of travel. Special slab moulds for circular samples obtained from coring or gyratory compactors are also available. See accessories.

Temperature control system:
The AASHTO Hamburg type Standard states that the test must be performed in a water bath with a temperature range of 258 to 70° ±1°C. A water level of about 20 mm above the sample has to be maintained. Where a heated air environment is specified, the specimen, during testing, must be maintained at uniform and constant specified temperature ± 1°C. The DWT Double Wheel Trackers fully satisfy and exceed the above requirements: the temperature accuracy is ± 0.5°C.

Impression measurement system:
Each wheel is fitted with RUT DEPTH transducers for measuring deformations from 0 to 40 mm ±0.01 mm.

The DWT Hamburger type Double Wheel Tracker can be used as part of your Superpave performance based testing program.
DWT Universal AASHTO/EN Double Wheel Tracker from IPC Global

78-PV33B05: DWT Wet and dry universal double wheel tracker
Conforming to Hamburg type AASHTO T324 and EN 12697-22 Small Size Device, in-air and in-water conditioning. Complete with both stainless steel and rubber wheels, laptop PC, software and clear transparent sliding doors. Set of moulds to be ordered separately. 
380 V, 50 Hz, 3 ph+N

78-PV33D05: DWT Wet and dry universal double wheel tracker
Wheel load adjustable up to 1500 N (by 100 N steps). Conforming to Hamburg type AASHTO T324 and EN 12697-22 Small Size Device, in-air and in-water conditioning. Complete with both stainless steel and rubber wheels, laptop PC, software and clear transparent sliding doors. Set of moulds to be ordered separately.
380 V, 50 Hz, 3 ph+N

Main features:
  • Meets and exceed AASHTO and EN standards and many DOT method
  • Fully automatic test performance on two specimens or one specimen
  • Variable wheel speed from 20 to 30 cycles/min
  • Fixed table, mobile wheel 230 mm travel
  • Wheel load of 700/705 N or adjustable from 700 to 1500 N
  • Temperature range from ambient to 80°C (±0.5°C)
  • Accurate temperature control (±0.5°C) for both in water and air test
  • Ruth depth transducers feature 25 mm travel, 0.01 mm accuracy
  • Direct rut depth measurement system, with transducers axially mounted in alignment with the wheel's centre
  • Motorized wheel-assembly lifting system for easy removal of slabs
  • Free access to the wide testing area
  • Optional independent lifting system for double or single wheel testing
  • Slab mould size of 400x300 mm, 360x300 mm (for 320x260 mm slabs), double 150 mm gyratory compactor cylinders, 200 mm/8"/10" diameter cores
  • Slab thickness adjustable from 40 to 100 mm (in 10 mm steps)
  • Extensive use of stainless steel in the machine's construction; not limited to the parts in contact with water
  • PC and software included
  • Automatic water filling and leveling system, no need to adjust or control the water level above the specimen during test
  • Laptop PC control with dedicated software including results performance, test database management and multiple test elaboration

This universal version complies either to AASHTO or EN standards being equipped with both stainless steel and rubber wheels, and performing the test in air or water. This solution is particularly suitable for research laboratories.

This  version can be upgraded with automatic system which lift one of the wheel from the specimen that has reached the rut target continuing the test on the other specimen.

The Double Wheel Tracker can be used as part of your Superpave performance based testing program.