Do none of the experts have any advise or opinions on this?

@Kintore I’m looking forward to the replies on this one. A ten metre dome is something I too have been considering. In my case, the insulation is for the extreme heat of Australia, but the same logic applies.

@HandyDan Clearly. Thus, the question is, given that the foam collapses under pressure, therefore requiring shallow pours and thereby creating layers: how does one create a sealed form that is fit for purpose? It is imagined that it would be best conceived as either a multi layer form that is added to layer by layer, or a form that can be raised and adapted to the next level.

Having no form work experience, I do not have the answer.

@hajjargibran

Do you know if anybody has tried using aircrete in an Earthship scenario, or even just tested it with tyres, yet?

@garsett I am interested to know how you got on with using forms for your build. It seems to be the way to go, but given how liquid aircrete is, I wonder if the simple plywood forms suggested may just leak and not be effective.

Could you share a link to the Indian forms you reference?

@mundane9 I'm sure everybody would love to attend a course, but budget and geography often make this difficult. As you say, there is a lot of bad info out there, so it would be very helpful to be able to access accurate info online.

Has anybody tried this yet? To have an Earth Ship without the hassle of pounding the tyres would be great. As @anthonydjones suggests, there may be a requirement for either pouring the aircrete into ready stacked tyres and/or adding some form of reinforcement to hold the tyre wall in place.

Coming along nicely.

There seem to be some big cracks though. What happened?

@noni Ouch! Thanks sounds like a lot.

@noni Oh dear, how frustrating. That is, it seems, how it goes when dealing with contractors....I empathise.

Yes, photographs and videos of your build as it goes, when it goes, would be great.