Heavy Weight Deflectometer (HWD)
| Company | Dynatest A/S |
|---|
Images
Description
Specifications
Dynatest developed the first commercially available Heavy Weight Deflectometer (HWD). The HWD is highly versatile and can be used to test on both rigid, paver block and flexible pavements on roads and airports. The HWD can apply a loading in the range of 30-320kN, enabling it to simulate vehicle loading from to the most extreme aircraft wheel load such as the Boeing 777, the Airbus 340, or 380.
The output from the deflectometer can be used:
- For measurement of layer moduli, stresses and Strain, mode of failure, rehabilitation options, and PCN value
- For quality control or existing and new pavement construction
- Improve and understand pavement modeling
- In pavement management
- In pavement research
- Dynamic loading enables mechanistic-empirical analysis of the pavement layers and the determination of optimum rehabilitation strategies
- Automated and rapid structural pavement testing
- Determines the layer of failure, rather than determining simply the bearing capacity
- QA/QC of newly built pavements
- Compares a range of rehabilitation options, including plane off and recycling rather than just applying overlays
- The Dynatest HWD provides accurate, reproducible, and repeatable data
- Automated and real-time monitoring of the load cell, geophones, and data variations ensures high quality of collected data
- Uses mechanistic analysis allowing testing of most pavement structures
- The HWD is used worldwide from the hottest and driest deserts to the humid tropics and the cooler polar regions
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The Fast Falling Weight Deflectometer (FFWD) is 5 times faster per drop than the original Falling Weight Deflectometer. The FWD is designed to impart a load pulse to the pavement surface simulating the load produced …
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Falling Weight Deflectometer (FWD)
The Dynatest Falling Weight Deflectometer (FWD) applies a dynamic load that simulates the loading of a moving wheel. The pavement response is analyzed with Dynatest’s ELMOD (Evaluation of Layer Moduli and Overlay Design) software to …
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The Dynatest Light Weight Deflectometer (LWD) is a portable version of the Falling Weight Deflectometer (FWD). The LWD uses a load cell and geophones with the same accuracy as the Falling Weight Deflectometer. The LWD …
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