Home » Products » Pavement Testing » Falling weight deflectometer » Falling Weight Deflectometer (FWD)---Vehicle Mounted

Falling Weight Deflectometer (FWD)---Vehicle Mounted

TBTFWD is one of the most advanced non-destructive structure testing equipment for road surface strength, as
it’s a hot topic in the field of pavement test to measure dynamic deflection of road surface and calculate the rebound modulus of road surface.
TBTFWD is used to apply a known amount of stress to the pavement and then record the deflections produced due to the impact. Ambient temperature and pavement surface temperature are automatically measured by the equipment while asphalt temperature is measured manually. With required interval of points, the geophones are placed on the geophone beam, to get the deflection value when force loaded, and on the data acquisition software you can find these values and see the deflection basin.

Model:
TBTFWD-NJ-MV
Brand:
TBTSCIETECH

Availability:



Inquire

Features

1. Easy to operate, fully-automatic;

2."One-Key Operation",the whole testing can be completed by one person with pressing just one key on laptop;

3. Fast measurement, 20~30s/point;

4. Four segmented plate which can fit the uneven pavement surface better;

5. Auto GPS location; auto surface/ambient temperature measuring;

6. Storage Battery Charging: charging by electric generator on the tractor;

7. Double Locking System: Hydraulic/ Mechanical;

8. Emergency System: Lift the load plate when system breaks down;

9. Operation Options: Manual/ Automatic;

10. Two camera: one for monitoring loading plate action; one for connecting with tractor;

11. Inertia Braking; Synchronized turn/break/back light and head warning light with the tractor;

12. Been approved with AASHTO R32 calibration;

13. Mounted on the vehicle, easy operating and future maintenance.

Referring Standard

ASTM D4694-09, AASHTO R32

Specification

Hammer weight	450KG
Moving speed	0~120km/hour
Testing speed per point	Around 20~30s
Deflection type	Magnet electric speed sensor
Deflection sensor quantity	7pcs(can be extended up to 15pcs)
Deflection range	±2500um
Deflection accuracy	2%
Deflection repeatability	1%
Loading force	12~150KN (optional 250KN of HWD for airport available )
Loading repeatability	2%
Loading resolution	0.1KN, 1Kpa
Loading plate	D300mm / 4-segment plate
Temperature Measuring range	-50℃ ~ 100℃ / platinum resistance & infrared
Temperature Resolution	0.1℃
Temperature Accuracy	0.50%
GPS accuracy	±5meters