Dynatest
Dynatest is a manufacturer of pavement testing equipment and software.
What is a Heavy Weight Deflectometer (HWD)?
“A Heavy Weight Deflectometer (HWD) is a non-destructive pavement testing system used to evaluate the structural condition of roads, airfields, and other heavily loaded pavements. The system applies a controlled impulse load to the pavement surface and measures the resulting deflection basin.”
View in the company profileHow does HWD differ from an FWD?
“Both HWD and FWD systems evaluate pavement structural condition by measuring pavement deflections under a dynamic load. The primary difference is the load capacity.”
View in the company profileWhen should an airport use an HWD?
“An airport should consider using an HWD when evaluating the structural condition of runways, taxiways, aprons, or other pavements subjected to significant aircraft loads. HWD data can support pavement rehabilitation planning, remaining-life assessments, overlay design, and Pavement Classification Rating (PCR) calculations when combined with ELMOD pavement analysis software.”
View in the company profileWhat load range does the HWD support?
“The Dynatest HWD supports a dynamic load range from 30 kN to 320 kN (6,600–71,800 lbf). Multiple loading configurations can be used to generate load levels suitable for different pavement structures and engineering objectives.”
View in the company profileCan HWD be used on roads and airports?
“Yes. The Dynatest HWD is designed for structural pavement evaluation on both roads and airports, including highway investigations, rehabilitation projects, airport pavement assessments, overlay design studies, and pavement management programs.”
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