Building a multi-layered, partially buried domed structure with Ferrock
The first layer is a Ferrock and glass mix troweled over steel wire mesh and rebar.
Then porous tubing is embedded to pump CO into the inner core of the wall.
Six-inch thick courses of the Ferrock and glass mix are hand built up over the tubing.
A 14" thick layer of "ferro-adobe" is built up to add thermal resistance.
The final adobe layer with an iron-based Ferrock binder to give it more strength.
A layer of Polymiron with glass grit is troweled on for greater weather resistance.