Hi, I need to fill in a bit on a casting I did over an old concrete base where I'm going to build with a lecablock to then place windows+beam on it. Our old mason (whom I fully trust for good reasons) said you could coat leca with Cement Mortar A if you didn't have rödgrund, basically the same thing. I don't want to buy a bag of rödgrund for 1.5 lecablocks.
Can I also build these 1.5 blocks on the concrete with the cement mortar?
It would be nice to avoid buying/mixing more than just cement mortar. I'll plaster in the spring with B-mortar which will be needed for something else then.
The picture shows the base during casting. The studs around the current door opening will of course be cut.
