The pavement response is analyzed with Dynatest's ELMOD (Evaluation of Layer Moduli and Overlay Design) software to determine the elastic moduli, stresses and strains of each modeled layer. ELMOD reports the weakest layer of failure, residual life and determines the optimum rehabilitation alternatives. The FWD is available as a trailer or a truck mounted version (USA only) meeting all FWD standards worldwide.

The Fast FWD (Fast Falling Weight Deflectometer) is 5 times faster per drop than the original FWD and as with the FWD (Falling Weight Deflectometer) is designed to impart a load pulse to the pavement surface simulating the load produced by a moving vehicle.

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 Light Weight Deflectometer uses a load cell and geophones with the same accuracy as the Falling Weight Deflectometer. The LWD can be used to test thin asphaltic pavements, recycled materials bound with foamed bitumen and directly test the unbound subbase and subgrade.

The PAST series transducer is an “H” shaped precision transducer for measurement of strain in AC (Asphalt Concrete) or PCC (Portland Cement Concrete). The Dynatest PAST series and SOPT series transducers can verify values of stresses and strains in pavement structures.

To optimize product life, Ask-Dynatest evolved the vehicle design to enable relatively straightforward conversion/interchangeability to a new vehicle at the completion of original vehicle life cycle, or to a trailer-mounting if preferred.