Strains and shape changes in asphalt layers: load tests & long-term measurements
This project involved two types of road surface structures equipped with Nerve-Sensors, measuring both strains (EpsilonRebars) and displacements (3DSensor). Both of them were embedded into the road layers during its construction, providing the possibility of analyzing its internal structural behaviour under static proof load tests. Our nervous system, supplemented by spot temperature sensors, was used successfully also in terms of long-term structural health monitoring (SHM).
DFOS Sensors Installed: EpsilonRebar and 3DSensor
Project challenges
Benefits of using the DFOS monitoring system
Results of using the DFOS monitoring system
The 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. The figure below presents example strain profiles measured by EpsilonRebar embedded into asphalt layers along the longitudinal direction. Two axes of the loading track are clearly indicated by tensile strains, while in the surrounding area, the compression was observed. Furthermore, short-term creeping was monitored while vertical displacements were registered by 3DSensors.
Example results
Recomendations (optional)
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
John Doe
Project partner
