Item TF-1MTDWED
DWT Hamburg Type Double Wheel Tracker
The DWT Hamburger type Double Wheel Tracker can be used as part of your SuperPave performance based testing program.
MeetsAASHTO T324-19 · AASHTO T324 · EN 12697-22
Technical specifications
| Displacement motion | the arm is moving and the carriage is fixed |
|---|---|
| Wheel travel | 230 mm |
| Wheel speed | variable from 20 to 30 cycles/min |
| Wheel load | 705 N |
| Temperature range | ambient to 80°C, ± 0.5°C |
| Rut depth transducer range | 50 mm, 0.01 mm accuracy |
| Moulds | not included, to be ordered separately |
| Slab thickness | adjustable from 40 to 100 mm in 10 mm steps |
| Overall dimensions (w x d x h) | 1540x1020x1600 mm |
| Weight approx. | 600 kg |
| PC and software | included |
| Models | 78-PV31A15 78-PV31A25 |
| Standards | AASHTO T324, TEX-242-F |
| Testing mode | In water |
Show 4 more specifications
| Description | DWT Hamburg type Double Wheel Tracker, wet conditioning version |
|---|---|
| Material and dimensions (diameter per width) of the two loaded wheels | Stainless steel 203×47 mm |
| Temperature control method (accuracy ±0.5°C for both water and air) | Three 1500 W heaters, re-circulating pump, automatic filling and control level* |
| Power rating | 5500 W |
Technical notes
- Download Brochure (PDF)
Features
- Full conformity to AASHTO T324-19, including sinusoidal movement (RMSE certificate available on request) and rut depth measurement in 11 defined points
- Full conformity to TxDOT TEX-242-F specifications
- 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
Show 12 more features
- Rut depth transducers feature 50 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 360×300 mm (for 320×260 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
- The software includes the possibility to program pre-heating and machine start (without operator intervention) and to measure the rut depth measurement in user-defined positions for research purposes or local specifications
Accessories
| 78-PV3UP10 | System for the independent lifting of the loading wheel at the rut target, continuing the test, without interruption, with the other wheel. |
|---|---|
| 78-PV3UP20 | Couple of additional temperature probes for monitoring the two samples temperatures. |
| 78-PV3/002 | Set of two moulds 360 x 300 mm (suitable for 320×260 mm slabs) for PAVELAB DWT Double wheel tracker |
| 78-PV3/003 | Set of two mould adaptors for 150mm dia. cylindrical sample, to be used with 360 x 300 mm, 400 x 300 mm moulds or with trays |
| 78-PV3/005 | Set of trays with handles for 150 mm diameter cylindrical samples, conforming to AASHTO T324. Adaptors for 150 mm dia. cylindrical sample to be ordered separately (see accessory 77-PV3/003) |
| 78-PV3UP30 | Set of 2 covers for 77-PV31A1x water bath |
| 78-PV3UP40 | Upper closing panel made from transparent plastic for DWT machine |
| 78-PV31A00/CAL | Set of traceable calibration certificates for 78-PV32xxx or 78-PV31XXX wheel tracker (including load, two displacement transducers, wheel speed/frequency, tyre hardness -if applicable, air or water temperature). |