Light Weight Deflectometer (LWD) | Soil Testing Equipment

Purpose — Measures the elastic modulus and stiffness of subgrades, base layers, and pavement structures in situ.

Portable Design — Lightweight and compact, allowing quick transport and use in the field without heavy machinery.

Testing Method — Uses a drop-weight or impulse load to apply a short-term dynamic load and measures resulting soil or pavement deflection.

Data Collection — Equipped with sensors to capture deflection data, often integrated with software for real-time analysis.

Applications — Used in road construction, airport runways, and civil engineering projects to assess layer quality and support design decisions.

Advantages — Non-destructive, fast, and reliable, enabling immediate assessment of soil stiffness without extensive laboratory testing.