Strains and displacements in asphalt layers: dynamic load tests
This project involves two types of road surface structures equipped with Nerve-Sensors, measuring both strains (EpsilonRebars) and displacements (3DSensor). All of them were embedded into the road layers during its construction allowing for analysis of its internal behaviour under dynamic load tests (truck’s runs). Our system was successfully applied for analysing the structural response in real time, including all dynamic effects registered using high-frequency mode.
DFOS Sensors Installed: EpsilonRebar and 3DSensor
Project challenges
Benefits of using the DFOS monitoring system
Results of using the DFOS monitoring system
Our DFOS-based nervous system was used for short-term measurements during static truck load tests as well as for long-term monitoring during changeable thermal conditions. Moreover, the same system analysed structural response in real time during the truck’s runs. The figure below presents example strain profiles measured by EpsilonRebar embedded into the asphalt layer along the longitudinal direction in subsequent time steps during the run. Vertical displacements were simultaneously registered by 3DSensors.
Example results
Recomendations (optional)
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John Doe
Project partner
