Leveling the floor

Twenty percent of the sprayed on concrete ends up on the floor as little chunks or as big chunks. We would pick a section, dig up the big chunks and set them aside. Then we would rake the little chunks to a specified level and remove the excess. The excess little chunks were moved to the east and west sides of the dome, which would NOT have the cinder blocks, and were used as fill.
This is a picture of the east side of the dome with piles of little chucks. It took about one month to level the floor this way. In hindsight, it would have been better to get a bobcat in to do the job.