Concrete film or concrete residue is a pain to rem.
How to remove roofing cement from brick.
Once it sets it can be very difficult to remove without damaging the brick.
When fixing a loose brick or making repairs near a brick surface wet cement or mortar might spill over onto the brick.
Dry cleaners can remove tar stains from clothing or other articles made from most fabrics.
Do you need to remove tar from your brick or concrete.
If you bring it in tell the cleaner that the stain is roofing tar.
I don 39 t think fire is a good technique for cosmetic cleaning of brick but maybe.
In the real world accidents happen.
Consider hiring a professional to help remove the tar.
Remove as much as you can mechanically without damaging the surface of the brick.
Tar is usually too thick to penetrate brick unless it is a commercial quick drying solution of tar and thinner.
A tar stain in the middle of the room is hard to hide and it is far less expensive to hire a pro than replace the carpet.
Before you start to use chemical solvents saturate the brick with as much water as it will take to limit how much solvent stain wicks deeper into the brick.
If all else fails remove the stained brick and replace with similar bricks probably from a place that carries used housing materials if replacing the bricks do not break up and throw away.