Has anyone tried to use the Nubian Arch technique with earth bags or rice hull bags?
Most Nubian arch building is done with solid adobe bricks that can immediately form a strong compressive structure, and it is usually done by laying the bricks nearly vertical using sticky mortar that will hold them in place as the arch is formed. You can’t really do this with earthbags, as the relatively loose material needs to be compacted in place. Even Nadir Kahalili, who pioneered the use of earthbag building and built many vaulted structures, never used bags to form his vaults; he switched to ferrocement at the spring line of the vault.
