Replacing blue concrete in interior walls, choice of materials

[addee]

20cm load-bearing walls in blåbetong, 10cm non-load-bearing.

What should they preferably be replaced with? Lightweight concrete, leca? What is the cheapest? Leca seems to cost less than half for the same dimension...!?

 

[JanneL]

I would choose leca. It is probably the cheapest. When it comes to interior walls, as in your case, thermal insulation is less important. I have walls made of leca myself and find them grateful to screw into. I also have no complaints about the sound insulation.

 

[addee]

How did you deal with the wall surface? Plastered, filled, or put up drywall?

 

[JanneL]

I have plastered and then painted. Prefer color on stone wall. I don't think one should "ruin" the wall by covering it with plasterboard. That's my opinion, perhaps not shared by everyone.