How To Build A Spray-In-Place Concrete Fence - Monolithic

Final color coat sprayed is on the left. Note
the position of the nozzleman for proper
spraying. The nozzle should be held perpendicular
to the work or slightly pointed
up as shown both above and below. Never,
never spray down with only one exception —
spraying the base footing of the fence.
It is a good idea to keep the fence moist,
as with any concrete, as it goes through its
curing phase. If possible the fence should
be kept wet for up to 30 days or a concrete
curing compound can be used. These compounds
can be purchased from a concrete
accesory store.
Color
The colorant will give a pleasing
color to the finished concrete fence.
Spray a quarter inch of colored concrete
on both sides to produce the final
finish.
If the final coat of shotcrete has
colorant in it, the fence is now finished
other than the moisture cure.
There is nothing that says that the
gray is not beautiful. Gray colored
concrete will eventually get white and
become very pretty.
The final spraying of concrete
may be held up until the entire fence is
finished with gray concrete so that the
color can be the same from one end of
the fence to the other.
The coloring in concrete is always
a little bit tricky. It is difficult to get a
true match from one batch to another.
The batches tend to interfere with each
other. They seem to get more water
or something in one than they do in
the other, but after a period of a few
weeks it can be noticed that the fence
tends to equal out to one color.
An option, a very valid option, is
to spray out the full thickness of the
concrete in the gray and then use a
concrete stain. Most reputable paint/
concrete shops have concrete stain. It
is not a paint, it is a stain. It soaks
into the concrete and will give you a
permanent color finish.
If a really nice finish is desired,
the stain is probably the safest way to
go.
23