In Curling, how come the ice doesn’t melt over repeated ends, then create ruts and paths for the rocks altering how they glide?

Question

Watching the Curlers at the Olympics I see them spend so many trips up and down the ice and so many throws. But the surface stays pebbly and nice, not melting with pools of water and channels that get ground down from the rocks being repeatedly thrown over the same area. How come there is no degradation? Is the surface a compound? Is there a chemical involved that moderates the ice?

In: 225

Answer 1

Under the surface, there are coils in the ice with refrigerant running through them to keep the ice solid, just like in a hockey rink. Every few ends, they sprinkle the ice to maintain the pebbly texture.