How long before roads churned under the pressure of the earth into indistinguishable small pieces of rock? Would they be gone in less than a million years? Whe

How long before roads churned under the pressure of the earth into indistinguishable small pieces of rock? Would they be gone in less than a million years? When built on top of freezing and thawing soil the current roads and asphalt start crumbling away already in few years only.