easiest "NP Dome House" cement construction method.

thingiverse

https://netpipe.ca/?page_id=3213 for more details. Dig a pit, smooth it out, and aircrete the bottom. Next, put in concrete forms, release the cast, and rotate to join with the lower shell. Then, cover it up. Pour a house in just two days. Check out this YouTube video: https://youtu.be/yRQP_ELDEVg?t=361 for other aircrete dome methods. Visit Thingiverse at https://www.thingiverse.com/thing:3620093 to get ideas on dirt and rock mixtures. Calculate the top shell's volume: 14,425.56845335329 feet^3 / 2 (for foam) = 7,212 feet^3. For a three-foot wall, add 60% aircrete dome carbon as a strengthener, according to YouTube video instructions. The bottom can be thinner, but it's better to do it right the first time. It also needs good insulation. Calculate the bottom shell's volume: 20,037 feet^3 / 2 = 10,000 feet^3 for the foaming agent. Made a four-dome version where the top shell is cast and then skidded into place on metal bars. The whole thing can be covered with dirt using soil stabilization fabric, mesh, or plastic mesh in layers for strength.