How to Remove Tar From Concrete - May 24
To remove tar from concrete, you can try using mineral spirits (paint thinner) and a nylon scrub brush, but removing tar from concrete is not going to be easy. You may also want to try a commercial product specifically designed for removing tar from concrete, available at your local hardware or home store. Carb cleaner or brake cleaner solvents from auto stores may work, but be aware of fumes and chemical residues - not stuff you want to inhale, or allow to run off into storm drains.
Ventilation is needed for all these cleaners.