Well compacted, smooth subgrade is Part 1 in making successful slabs; Part 2 will cover formwork, joint details, vapor barriers and reinforcing.

For example, reducing a six inch thick floor slab to five and one-quarter inches reduces the load-carrying ... Ringo, B.C. and Anderson, R. A., Designing Floor Slabs on Grade, 2nd Edition ...

If you live in a slab-on-grade, SOG, home or work in a similarly constructed commercial building, the air you breathe every day might well compare to what came out of that underground critter ...