The minimum width of a web for the Aeroblock is 50mm while the maximum is 100mm. This gives the block sufficient rigidity while the 150mm square voids cuts the weight down considerably.(click the image to see larger)
A solid block of the same dimensions would be .05m3 of material while the voids represent 0.0045m3 of less material giving a total mass of 0.04550m3 which is a 9% reduction in mass.
As can be seen from this cut away section, the web thickness is sufficient to provide support but not too thick to unnecessariy increase the weight. There is a consistency of either a 50mm on the sides, which is sufficient thickness for a block wall, and 100mm in the middle where the strength of the block is needed.
There is no more than 20mm key height tapered down to 40mm on the edges and 40mm tapered down to 60mm on the center.
The blocks will fit tightly together over there whole surface area in the 250mm x 250mm modular keys. There can be no horizontal sliding of the block.
Therefore, there is no need to key the sides of the block which will allow for an esthetically pleasing surface and will allow for the reduction of the number of block types that are needed to be produced.
Another added benefit is that without any protrusions on the fore and aft sides there is less chance of breaking and no need for the workers to orient the block left or right. They need only remember up from down.
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