Ice wedging can break apart rocks when water seeps in cracks of roads or rocks and continues freezes and thaws until the rock eventually creates a pot hole
Ice naturally makes cracks when it is frozen. Not large cracks, but cracks. Water seeps in through these cracks and freezes them. The crack expands due to the frozen water, or new ice. The cycle...
It can do this in two ways.
The Ice can hold rocks in itself and rub these (like sandpaper) across other rocks as it moves, this causes the rocks being rubbed together to break.This is called...