The Proto-II™ masonry wall in the top two photos
is an 8’ high wall consisting of 6” wide and 4” wide
CMU block. When the basement was excavated for
this new home, the excavator dug too close to the
masonry wall and the dirt collapsed under the wall
footings. This Proto-II™ Wall remained standing,
suspended in midair, for over a week until a track hoe
had to be used to remove it.
In the bottom photo, a severe desert wind storm
completely eroded the earth underneath the footings
of this Proto-II™ Wall. Not only did the Proto-II™
Wall and footings remain intact and undamaged,
the wall was able to bear the weight of a man
standing on top of it!
With any typical masonry fences, these
undermined wall footings would unquestionably
cause a collapse of the walls. Why does the
Proto-II™ Wall stand where other walls would fail?
Other masonry fences rely on reinforced concrete
for support, which leaves the non-reinforced areas
weaker and vulnerable. The Proto-II™ Wall uses
post tension engineering resulting in a compressive
force distributed throughout the wall. The post
tensioned force holds the wall intact and prevents
it from failing, even in extreme conditions.
The Proto-II™ Wall was not designed for these
extraordinary conditions, and there is no assurance
that the Proto-II™ Wall would perform as it has in
these examples. The fact that these Proto-II™ Walls
remained standing and undamaged under these
conditions is just an incredible reminder of how
exceptionally strong, durable and failure resistant the
Proto-II™ Wall system actually is.