Induction healing of asphalt mastic and porous asphalt concrete

The objective of this paper is to detect the healing effect of asphalt mastic and porous asphalt concrete caused by induction heating. It was found that the broken mastic beams could be healed many times by induction heating. Moreover, the stiffness of porous asphalt concrete recovered more and faster when induction heating was applied to the samples. It was also found that fatigue life of porous asphalt concrete was significantly extended by induction heating. Based on these findings, it was concluded that the self healing rate of asphalt mastic and porous asphalt concrete can be increased by induction heating.

► Induction heating was used in porous asphalt concrete to increase its healing ability.
► Porous asphalt concrete can restore its strength and stiffness by induction heating.
► The fatigue life of porous asphalt was also extended with induction heating.
► The lifetime of porous asphalt pavement will be significantly extended.
► This extension will lead to a decrease in CO2 emission and energy consumption for paving pavement.