Last winter some bozo decided that instead of shovel the driveway, he'd just spin the wheels until he got his truck into the garage. Now said bozo has one nice, long skid mark burned into his concrete driveway.
The following methods of removal were tried and failed:
The power washer got off a lot of it, but not all. The angle grinder didn't do much. The rubber seems to be melted onto the concrete.
- Wait 6 months for them to wear off
- Power wash using 1650 psi electric power washer
- Angle grinder with wire wheel.
Any ideas for removing this stuff? My, er, his next idea was muratic acid