Construction methods for pavings can be either set on concrete of set on grade.
For those set on concrete a three to four inch
slab is poured just as if paving a walk or driveway
might be done. The
major difference is that it would not have to be
troweled in and then decoratively finished with saw cuts
or light broom sweeps.
Not being visible in the
end allows it to be placed and “roughed-in.”
After the concrete as set up, a veneer of stone,
brick, concrete paver, or tile is used for the
decorative finish.
An alternate method of
paving would be to use an decreasingly less course layer
of aggregate which is compacted on top of existing soil
(after excavation to obtain proper elevations) which is
compacted into place.
The decorative finish is then vibrated into place
with a motorized tamper.
The latter method is
cheaper but more vulnerable to moisture, shifting, and
damage by vehicular traffic.
It also requires proper locked banding to prevent
edges from giving way and loosening the remainder of the
paving structure. This
method also does not allow for mortared joints in the
decorative veneer due to that same shifting potential.
Stone veneers can be categorized into broken which is a
usually a more loose, natural look.
Or they can be saw-cut giving each edge a crisp,
clean, finished look. Patterned stone is a saw-cut stone that is dimensioned in
6” increments and laid in a predictable but slightly
noticeable pattern.
Brick is a familiar
material that is laid in sometimes less familiar
patterns. These
patterns are called the “bond.”
A running bond is the most familiar followed by a
basketweave, herringbone, Flemish bond, half-basket,
ladder weave and others.
Interlocking concrete
pavers are
becoming more useful due to their more readily
affordable cost and their ability to be laid on subgrade.
Probably more appropriate for driveways and pool
decks on a residential scale, more finely detailed
pieces are being developed every few years.
Stamped concrete
has a much more affordable cost than brick and stone but
can give the user many different patterns, colors, and
textures from which to choose.
The casual observer can often not tell the
difference between real stone and stamped concrete at
first glance.
The downside of this
product is tied into cost and scale.
Smaller projects are not really cost effective as
an alternate to brick and stone.
It takes increased square footages such as
driveways, pool decks, and larger patios to take
advantage of the cost savings between to the opposing
media.
Exposed aggregate
is a type of concrete finishing where a decorative
aggregate such as pea gravel is used in the concrete,
seeded on the surface, and then washed during finishing
to expose the aggregate protruding through the top of
the concrete. This
finishing technique takes someone experienced and adept
to produce a lasting result of true beauty.
When well done it appears easy but is a job that
is very much a product of proper timing and should be
left to those with years of experience.
Few of us are unfamiliar
with the ubiquitous broom-finished concrete slab.
However, more of us are unfamiliar with some of
the “flavorings” that can be used to set apart this
very affordable paving medium.
When
budget dictates we will often border concrete slabs with
coordinating stone, brick, or granite slabs to tie it
back into an existing architectural element.
Similar effects can be achieved with inlays of
panels or medallions.
We also saw cut
decorative joints into a concrete slab to give it both a
texture and a visual grid.
With a little creativity and thought, concrete
can be used to stretch
the budget of many garden projects.
Sometimes in very natural
garden settings, pathways and walks can be achieved by
simply carving out the spaces and topping off with aggregate
of differing textures or colors or even using different
types of mulch such as pinestraw, bark, or
shredded cypress. The
maintenance on these spaces are increased severely since
the aggregate is free to wash, blow, and track.
None-the-less, some very pleasing and functional
spaces can be created when money savings is a must.
As already mentioned, all
of these pavings become potential choices for walks,
patios, and driveways.
There use will truly customize the appearance of
a home’s exterior or garden as well as making
circulation patterns much more functional and appealing.