@h1r0p my crawl is 3000 square feet so I understand the pain. Due to a previous mouse infestation, Ive removed all of the insulation and vapor barrier. Ive replaced all of it with 10 mil and im looking for an inexpensive flooring/rat slab option.
Im thinking I can mix the aircrete outside and use gravity to feed it onto my crawlspace using a a large diameter hose through a vent hole.
I can pour it in my spare time.