Patna / Bihar / Gaya / Bhagalpur / Muzaffarpur / Darbhanga / Ranchi / Jharkhand

Falling Weight Deflectometer (FWD) – Precision Pavement Evaluation

At PDSS Lab, our commitment to delivering sustainable and high-performance infrastructure is backed by the use of state-of-the-art technologies. One such innovation is the Falling Weight Deflectometer (FWD) – a critical tool for evaluating pavement strength and structural integrity. As an ISO 9001:2015 & ISO/IEC 20000-1:2018 certified multi-disciplinary engineering consulting company, PDCE Group employs advanced FWD testing as part of our comprehensive pavement investigation and asset management services across India.

What is a Falling Weight Deflectometer?

The Falling Weight Deflectometer is a non-destructive testing (NDT) device used to assess the structural capacity of in-service pavements. It simulates the load of a passing wheel by dropping a known weight onto a loading plate placed on the pavement surface. Sensors then measure the resulting deflection of the pavement at various distances from the load point.

This data is used to calculate modulus of elasticity of pavement layers, detect weak zones, and determine overlay thickness or rehabilitation strategies. FWD testing is essential for pavement performance analysis, maintenance planning, and design validation.

Key Features of PDCE Group’s FWD Services:

Accurate assessment of pavement layer stiffness

Layer-wise modulus back-calculation

Evaluation of pavement residual life

Support for overlay and rehabilitation design

Compliance with IRC and MoRTH standards

Applications:

Pavement management system development

Structural capacity assessment for roads, highways, airports

Validation of pavement design assumptions

Performance-based maintenance planning

Support for Detailed Project Reports (DPRs)

Why Choose PDSS Lab?

With over 1525+ projects executed across diverse sectors and geographies in India, PDCE Group brings technical depth, practical experience, and cutting-edge equipment to every infrastructure assessment. Our FWD testing is seamlessly integrated with services like Geotechnical Investigation, Soil Testing, Road Safety Audits, DPR Preparation, and PMC, enabling end-to-end pavement lifecycle management.

Our team of skilled engineers and certified analysts ensures that FWD data is interpreted with precision, delivering actionable insights to government bodies, private developers, and infrastructure contractors.

Build Roads That Last with PDSS Lab

Whether you’re planning a new highway or maintaining an existing road network, PDSS Lab Group’s FWD services ensure your pavements meet the highest standards of performance and durability.