Dynatest structural testing systems are designed for non-destructive pavement evaluation, deflection testing, quality assurance and rehabilitation planning across roads, highways, airfields and construction sites.
Structural pavement testing is the process of measuring how a pavement structure responds to applied loads. The objective is to understand the condition of pavement layers, identify potential structural weaknesses and support data-driven maintenance, rehabilitation and design decisions.
Dynatest structural equipment uses deflection-based measurements to evaluate pavement performance. Depending on the application, the equipment can support analysis of road and airport pavements, pavement layer moduli, remaining service life, overlay needs and construction quality.
Dynatest structural equipment covers portable construction QA/QC, conventional and high-speed deflection testing, heavy-load airport pavement evaluation and truck-mounted pavement testing. Use the overview below to find the most relevant system for your application.
For network-level and project-level structural pavement evaluation.
The Dynatest FWD is a non-destructive deflection testing system used to evaluate pavement layer response under dynamic loading. It supports structural pavement analysis, rehabilitation planning and assessment of pavement condition without damaging the road.
Best suited for:
For faster deflection testing with reduced traffic exposure.
FastFWD is the next-generation Dynatest FWD system. It is designed for organizations that need high-quality structural pavement data with faster field operations. Compared with a conventional FWD, FastFWD is five times faster per drop and can deliver either more test points per hour or reduced traffic exposure.
Best suited for:
For portable structural testing and construction quality control.
The Dynatest LWD is a portable deflection testing system for construction sites, subgrade, subbase, recycled materials and thin asphalt pavements. It can be used for QA/QC on newly built or existing constructions and can help identify when further investigation with FWD or other material analysis is needed.
Best suited for:
For roads, runways and airport pavement evaluation.
The Dynatest HWD is built for heavy-load structural pavement testing. It can apply significantly higher impact loads than standard deflection systems, making it suitable for both road testing and airport pavement evaluation where aircraft loading must be considered.
Best suited for:
For truck-mounted structural pavement testing.
The Dynatest TMD brings deflection testing into a truck-mounted configuration. It uses falling weight-based load and deflection measurements, field software and ELMOD analysis to support structural pavement evaluation in a mobile testing setup.
Best suited for:
For measurement of pavement strain and structural response under load.
The Dynatest PAST is a precision transducer designed to measure strain in asphalt and concrete pavements. Installed directly within the pavement structure, it provides valuable data for pavement performance evaluation, structural research, validation studies and accelerated pavement testing.
Best suited for:
| Equipment | Best for | Typical application | Key reason to choose |
| FWD | General structural pavement evaluation | Roads, highways, rehabilitation planning | Non-destructive deflection testing and pavement layer analysis |
| FastFWD | Faster structural testing | High-volume testing and reduced traffic exposure | Five times faster per drop than a conventional FWD |
| LWD | Portable QA/QC | Construction sites, subgrade, subbase and thin asphalt | Lightweight, portable and suitable for fast field testing |
| HWD | Heavy-load testing | Airports, runways and heavy-duty pavements | Up to 320 kN loading for road and airport pavement testing |
| TMD | Truck-mounted deflection testing | Mobile structural testing programs | Truck-mounted setup with field software and ELMOD analysis |
Visible pavement distress does not always show where the structural problem begins. A pavement may look serviceable at the surface while deeper layers are losing stiffness, support or load-bearing capacity.
Structural testing gives engineers and asset owners the data needed to move from visual assessment to quantified pavement insight. Deflection measurements can help identify whether a pavement issue is related to the surface, base, subbase or subgrade, and support more precise rehabilitation planning.
Deflection-based structural testing applies a controlled dynamic load to the pavement surface and measures how the pavement responds. The measured deflection basin can then be analyzed to support assessment of pavement layer behavior, load response and structural condition.
Dynatest FWD, FastFWD, HWD and TMD systems use load and deflection measurements together with data collection and analysis software. ELMOD can analyze deflection data using Finite Element Method, Linear Elastic Theory and Method of Equivalent Thicknesses.
Structural testing helps pavement engineers understand where a pavement is losing capacity and what type of rehabilitation may be required. With deflection data and pavement analysis software, engineers can evaluate layer performance, estimate remaining life and support overlay design.
Portable structural testing can support quality control on subgrade, subbase and flexible constructions. This helps contractors and owners verify whether pavement layers meet project requirements before later construction stages continue.
Airport pavements require structural evaluation under heavy load conditions. HWD supports airport testing by applying high impact loads and enabling analysis that includes aircraft load configurations and Pavement Classification Rating.
Structural pavement data helps road authorities prioritize maintenance based on measured pavement behavior rather than visual condition alone. Deflection testing can support more targeted maintenance planning and better use of pavement budgets.
Whether you need portable QA/QC equipment, high-volume deflection testing, airport pavement evaluation or advanced pavement layer analysis, Dynatest can help you choose the right structural testing setup.