Dear Pedro
I am not saying that a aircrete concrete structure is unsafe.
I was merely trying to distinguish between the mathematics
and physics of a structure.
Deriving coordinates of vertices from a geodesic dome alone
does not make the subsequent structure geodesic in nature.
You have used only the mathematics of the geodesic dome
but cut out the physics by casting the structure in separate
disjointed blocks.
You can make an aircrete geodesic dome by casting the panels
of aircrete but joining the retaining structures till they form a continuous
tension ring around the aircrete.
By the way, I spent the third week of October in Istanbul
surrounded by about 100 compressive spherical dome that soar
over 100 feet in the sky. Properly made spherical compressive domes
are also long lasting structures.
Some such domes at Istanbul are about two milineum
old while others are several hundred centuries old.They transfer their
weight from the circular shape to a square foundation using a unique in
between called squinch.
Persian domes transfer their weight to an octagonal base using another in between.
Compressive spherical domes of aircrete are also possible
but will use a maths different from geodesic.
Regards
Ashok