but aren’t we back to precast concrete parts here? We already had this topic in the other thread?!
According to ant1, due to prefabrication with batch size 1, it’s not achievable at realistic prices?!
You see, now, with a specific house in mind, you can look at it more precisely case by case: for this house – by the way, in my opinion a design that does not "suffer" in the overall effect with plaster, but looks just as good with a plastered exterior as with exposed concrete – it is overall coherent, and for the 7 and 11 Turbo can be called downright "adequate."
You can do it with precast parts, in cast-in-place concrete, or combined.
More precisely: in the factory (as a custom-made piece, since no wall module repeats in a specific grid for this house, so each part is different) a thin concrete wall for the "inside" and a counterpart for the "outside" are produced and joined together at a certain distance. This twin precast part is then used as a "lost formwork" for a concrete core poured on site (and for a currently code-compliant residential building requires an insulation layer on the outside).
You can also do it so that instead of the cast-in-place concrete layer, an insulation layer is inserted, then you have concrete for both outer surfaces. However, the inner shell cannot then be formed as a thin "lost formwork," but must structurally replace the cast-in-place concrete layer of the variant described above. Therefore, it weighs considerably more, which affects transport logistics and possible panel dimensions.
Have a look at KX and XCON from
Dennert Massivhaus.
I join Yvonne’s thanks for an architect’s design at Easter