Self Healing Aspalt on the A58

On this Blog we will give info on the test track with Self Healing Asphalt that is built on the A58 near Vlissingen in The Netherlands. The Asphalt is a special type of ZOAB (very porous aphalt concrete) containing small steelwool fibres. A known but serious problem with ZOAB is ravelling: stones at the surface coming off in time due to microcracking in the binder. The special ZOAB that is developed at Delft University (sponsored by AgentschapNL) can be heated with induction energy due to the fibres that are present which closes the microcracks and with that extends the service life of the road.

Friday, 1 April 2011

laboratory testing

More and more lab-tests are being started these days.
The samples are ageing, the induction machine is being optimized, Cantabro tests are running to measure particle loss and 4 point-bending fatigue tests are started as can be seen in the photo below.

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