Engineer invents self-healing asphalt

The video explains how cracks in asphalt roads form due to continuous traffic, leading to potholes. It introduces self-healing asphalt, which combines porous asphalt with steel wool fibers. When heated, the steel wool causes the bitumen to melt and fill the cracks, extending the road's lifespan without frequent repaving.

What effect does heat have on the self-healing asphalt?

What is the benefit of using self-healing asphalt for roads?