I will be plastering walls (on walls made of leca blocks) and after that, I will cast a large foundation with coarse concrete and build more leca blocks.
For the plastering, it should be plaster sand and for casting and masonry, mortar sand.
The question is, is it enough to buy a load of plaster sand? Could there be problems with using plaster sand instead of mortar sand for masonry and casting?
I would prefer not to have to go to the sandpit twice to buy different types of sand...
