This one is on the home page of the site now.

The guy takes a piece of material he calls "porous asphalt" and dips it in something (presumably liquid Nitrogen) then taps it with a hammer and breaks it in half... then he carries it across the stage and puts the two halves together in a microwave and sets the timer... then he gives the talk.

He is describing the properties of a new road material that will quickly shed water and absorb sound due to its pores. Using the healing technique he describes, cracks and normal wear can be repaired by driving a repair vehicle over the spot and using inductive heating.

~7 min

A "self-healing" asphalt