Pillars for foundation.
I'm considering using aircret too replace the rotten main beam and subfloor in two rooms at my house. If I form up and pour a wall along the load bearing walls, would aircret hold that kind of weight! Maybe jack up the floor, poor my wall then let house back down onto the poured wall
I'm not sure how all this works but I would like to find out how to find someone who build's these
I'm not sure about this, because I'm still in the research phase myself. But from what I've researched there is a company like LiteBuilt that has a 8 inch thick block they use for structural (once it has rebar and cavities filled). But they pour these at a density of 1100 kg/cubic meter. So I believe it's possible, but you'll have a much higher density. The "favorite" recipe shared on this website is an insulating recipe that should yield about 300-400 kg/cubic meter. So you'd have a pretty big jump to make to get a structural wall in place, but still significantly less than just pouring straight concrete.
The same company has a block at 600 kg/cubic meter but I don't think they recommend that for structural use, it's more for interior walls that don't bear a load. Overall, as far as a straight pour you might have different numbers you are looking at,
Again this is just approximations based on my research, it would be much better to get a response from someone with real experience.