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.

Tuesday, 4 January 2011

Brochure on Self Healing Asphalt

Rijkswaterstaat (Dutch Government) published a brochure on self healing asphalt and roads. Our self healing asphalt with steelwool fibers is described in this report as one of the very good options. Another project we are working on now (also sposored by AgentschapNL) is the use of capsules filled with rejuvenator inside the bitumen. This project is also described in the brochure. You can download it here. The brochure is both in Dutch and in English. Happy reading.

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