Hi Domegaia team
I have an idea to join triangular panels together without having to use a frame to hold them up while building. I have tested this idea on a wooden panels, and it works well.

The panel has 2 loops sticking out of each side. When the panels are placed against each other a pointed tapered bolt is screwed into the loops and pulls the panels together. The bolt head is below the surface, and will be sealed.
The panel is cast in a mold, The loops go trough the panel to the other side, thus also acting as re-inforcing.
Has anyone done this ?
If anyone is interested in testing this design, please contact me and I assist where I can
Aaldert

Hi
Has anyone used MGO Cement( Magnesium oxide cement) and made a foamed "crete". ( I have seen the Airkrete insulation)

Hi
Inflatable form is the least labor intensive way to go i believe.
To test if the air-crete stands up to the height, Use a form as high as the top of the construction, 16 Ft in your case, for example a box of 4" square and pour the test mix in this. Test the bottom but the same way you test the top bit and you know the difference.

Hi Jack
I can help you with the design of the form, an how to make it. I need to know more about your intentions, such as size, how durable you want the form, how many forms you want, and your skills if you want to build them yourself.
Glad to help, in return I like to know what you learned in the building process. Cheers