Yesterday, we had a treatment of the self-healing asphalt road (N52) in Ireland. We (Aleks Milenkovic (Epion Asphalt) and Erik Schlangen (TU-Delft) went to Ireland by car (and ferries) with the Epion-induction machine. In this project we work together with Arup (Alan Lynch), RevolutionRoad (Amir Tabakovic), Roadstone (Ciaran Collier) and the project is sponsored by TII (Transport Infrastructure Ireland).
The test-track on the N52 is made with dense asphalt and has a section with steel-wool fibres, steel-wool fibres with rejuvenation capsules and a section with only capsules. Below you see some images when heating up the section with the Epion-induction device having the steel-wool inside the bitumen. We aimed for a surface temperature of around 80 degrees C. At this surface temperature the temperature around the fibres should higher (around 100C), enough to melt the bitumen around the fibres and close microcracks.
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