In the past many types of flooring including semi flexible tiles sheeting and wood floors were installed using bitumen based adhesive.
Removing bitumen adhesive from concrete floor.
Fortunately there are some good strong concrete cleaners on the market that can cut the oils in asphalt and lift the discoloration from your concrete walkway or drive.
Remove as much of the glue as possible from the concrete using a concrete floor grinder.
Asphalt is some nasty oily stuff.
Keep the grinder moving to avoid taking off a layer of the concrete along with the glue.
It is also a reasonable waterproofing agent and as a result quite successful as both an adhesive and a moisture barrier.
However if you do this odds are that some adhesive will be left behind in the process.
When you remove that floor covering to make way for new flooring you may encounter the mastic and wonder whether it is safe to remove the main concern surrounding this question is that black mastic often contains asbestos.
There are plenty of methods for decorating them that can make you want to pull up old carpet and tiling in an instant.
When removing an existing floor bitumen is easily identified as a black substance.
Common in homes built in the 20th century black mastic was used as an adhesive for ceramic tile linoleum and other flooring materials.
Remnants and residues left over aren t pleasant to look at and make it impossible to add new decor or refinish to the concrete.