Tips and advice moisture on concrete

[Gammalthus18]

We had a water leak, and in the boiler room, we had pellet bags foolishly on pallets. The leak was above the boiler room in the kitchen, but it ran and dripped down through the pipe into the boiler room before we discovered the leak. To the point, we have now moved everything away because the pipe that needs to be replaced runs down there. But in one corner at the other end, water had come in without us noticing, and it looked like mold. But they have measured moisture throughout the house, even there, and there was nothing significant. We peeled off what was loose, and there was nothing dark; everything was fine except for a thin outer layer. Cleaned it off and started removing all the loose, which was super old. So I thought of fixing the walls. I actually planned to do this in the spring, but I might as well fix it now. It's concrete that's been painted before.

What method should I use? Scrape and remove everything loose from the floor and up, then plaster or new concrete or what? And then paint? Simple smart tips please for protecting and making it somewhat nice until renovation

 

[Rabbithole]

Wash away the mold and let it dry. As long as it is dry, there will be no more growth. Other fixes are just to make it look good.

 

[Gammalthus18]

Wash away the mold and let it dry. As long as it's dry, there will be no more growth. Other fixes are just to make it look good

Absolutely, that's already done, but I got eager to fix the wall/walls better while I'm at it It's old and has started to come loose in different places, doesn't look great. So I was thinking about which different methods are best and easiest suited at least until spring or summer

 

[Rabbithole]

What do you want for finnish? The easiest way to make it look nice is probably to use plasterboard. Otherwise, you'll have to tear it down and replaster. If you go with filler, it will have a different finnish than the plaster, so then you'll have to do the whole wall.