| |
Preparation
First, our work crew arrives at the job site with modern, specialized
asphalt paving equipment. We begin our work by measuring the work
area and setting up string lines. We then remove all visible weeds
in the work area, either by hand (in hard to reach areas) or with
the use of a back hoe. The string line is to help ensure that we mark
the boundaries of the work area as accurately as possible.
In the event that the job requires excavating, this is done properly
and efficiently with our back hoe. Many paving companies prefer the
use of a skid steer / bobcat machine for excavating purposes. Although
these machines are great for taking on much of the handwork, they
are not equipped (nor designed) for excavation required on a driveway.
After the initial preparation of excavating / removing weeds is completed,
we then proceed to grade the area to be paved. This process is very
important because the overall quality of the paved surface is directly
related to the quality of its base. Since the purpose of our paving
machine is to lay asphalt in a uniformly even and smooth manner, we
also use it while preparing the grade of work area. This helps remove
low and high spots on the area to be paved. As we grade the work area,
we are constantly measuring, via a straight edge and a level (or transit,
if necessary) the fall of the entire area to ensure that water drainage
will be proper and flowing to the desired locations. After our initial
grading, we compact the area with a 3-ton compactor that has vibratory
capabilities of up to 10-tons. We then fine-grade the entire area
and re-check the drainage of water. A plate compactor is taken around
the perimeter of the work area and anywhere a self-propelled compactor
isn't suitable.
Laying the asphalt
When the asphalt arrives, it is dumped into the paving machine and
laid at a depth that will later be compacted to an average of 2.5".
Boards are placed along any edges that are required to be straight
and the asphalt is placed up against the boards in order to achieve
this. In tight areas where access is limited, asphalt will be distributed
and raked by hand to a consistent depth.
A special asphalt glue may be used at any joints where the new asphalt
may be meeting old asphalt in order to prevent the two from separating
in the future (snow-plows, frost etc. tend to do this). We use a high-grade
asphalt mixture that is the same mixture that is used for the top
layer of most highways, so a durable and long lasting driveway is
installed. When the asphalt has cooled to the proper temperature,
we begin the process of compacting it. Proper compaction is the key
to a long-lasting, low maintenance driveway. The edges are compacted
manually at a 45-degree angle, as well as with a plate vibrator.
Completion
Finally, we clean the edges of the paved area and surrounding site,
and erect a barrier to keep traffic off the newly installed pavement. |
| |
Paver bricks can be used for driveways, sidewalks, patios, garden
paths and even porch floors. As long as the underlying gravel and
sand base is properly prepared, pavers can be used almost anywhere.
In areas where vehicles will travel, the sub base must be increased
to at least 6 in.
1. Remove the existing surface down 5 1/2" -15 1/2".
2. Install 2" - 12" of crushed aggregate base.
3. Add a 1" layer of sharp-angled bedding sand.
4. Individual paving stones are then placed by hand into the bedding
sand.
5. Sand is swept over the paving stones, vibrated into the joints,
locking the stones into place.
6. Our edge beam protects the paving stones from lateral movement.
|
|
