Heavy Weight Deflectometer

A Heavy Weight Deflectometer is used to measure the vertical deflection of a pavement surface to the application of a controlled impulse load. This deflection response is measured and analyzed by multiple geophones. Collected information is used to determine surface material strength, bearing capacity, layer thickness and E modulii of a layered pavement system.

PAVEFLECT HWD's come with an impulse load range of 130 kN which can be increased to 320 kN for high capacity models and up to 15 geophones.

HWD Features

• Compact & lightweight construction.
• Foldable trailer - easy to transport.
• Non corrosive body and components.
• User friendly hardware & software.
• Operation through standard laptop.
• Complete system operationan by laptop from inside the vehical.
• Any vehicle can be used for working.
• Optionally wifi operation.
• Possibility to change from FWD to HWD to SHWD in minutes.
• As per ASTM D4694 − 09 (Reapproved 2020).
• Fulfill IRC 114 & 117.
• Integrated webcam for precise placement of loading plate.
• Optional camera for distance triggered RoW pictures.
• Cake shape of rubber buffers for better load distribution.
• Standard 9 Geophones.
• Option to add up to 15 Geophones.
• Placement of Geophones in longitudinal & transfers directions.
• Manual operation by panel.
• Hand Pump operation in case of engine / electronic / laptop failure.
• Single Axle / Double Axle trailer as per user requirement.
• Weather proof & theft proof enclosure.
• Segmented plate load beam 300 / 450 for better contact with Pavement.
• Warning / beacon light provided.
• Calibration AASHTO R 32 - 03¹ protocol
• Fast deflectometer
• Easy repair and maintenance
• Handbrake and toeing breaks