Research on the induction healing of porous asphalt is summarized. Steel wool is added to
porous asphalt concrete to make it electrically conductive and suitable for induction heating.
When microcracks occur in the material, an induction generator is used to heat the material
to close the cracks by the high-temperature self-healing of bitumen. The electrical resistance
and induction heating speed of porous asphalt concrete reinforced with steel wool are
examined. Porous asphalt concrete containing steel wool is found to be electrically …

The objective of this paper is to evaluate the healing capacity of steel wool–reinforced
porous asphalt concrete. The healing is initiated with induction heating. Bending fracture
tests on an elastic foundation are used to prove the healing mechanism. Porous asphalt
concrete beams on an elastic foundation were fractured at 5° C; subsequently, they were
heated with induction energy, and finally fractured again. The recovered fracture resistance
of the beams was used as a healing indicator. Totally fractured porous asphalt beams can …