I plan on using a monolithic slab for my geodesic dome home. The footers around the perimeter will be supporting a concrete block wall which will be filled with concrete and rebar. This will form the lower level on which the 2-story dome will sit. My engineer states that the block wall must be positioned in the center of the footings. Then he suggests plastering a 45 degree mortar bevel on the outside of the wall to help when installing the waterproofing. The next thing he suggested, to help with waterproofing it even more, is to embed the first course of blocks 2” deep into the wet concrete of the slab. Has anyone here ever heard of doing this latter step? Is it really feasible to do this before the concrete sets up? I figure he knows what he’s talking about, since he used to be a concrete contractor.