Concrete edge between floor and wall

[rtyui987]

Currently working on a fun little project - chiseling away concrete in the basement for new pipes. The entrance and bathroom will have tiles, and the remaining floor will be laid with Platon mat and oiled wooden floors. A small problem has arisen regarding all the edges between the floor and the wall. There is a radius-shaped concrete transition, radius about 30-40 mm that I want to remove, see image. Most people would probably just use self-leveling compound on the floor and add whatever is needed to get rid of the edge. But with exactly 2 meters in ceiling height and considering that it will become living space, I don't want to reduce the ceiling height further. So to all the clever DIYers and craftsmen:
How to remove the edge most easily? Big machine - chisel? Or is there something to cut with so that you can go all the way down to floor level directly? The concrete is hard as hell and cast together with the base plate/floor. So it's not something that just - whoosh - comes off. Been there and done that!

Grateful for tips!
Stefan

 

[anaitis]

I would have cut a track with a diamond blade along and then chiseled away the btg that was on the wrong side of the cut.

 

[Mats]

I am inclined to agree with that. Then a suitable milling disc on an angle grinder for fine adjustment but it creates dust, or a chisel.

 

[Milkshaken]

But remember to take it step by step.... I know some who dug up an entire basement floor, it caused the basement wall to fold inward..
Regards, Me,,,