It’s never too late to learn something new, and when it comes to asphalt installation, there are many things that homeowners, companies , civil engineers , commercial property owners, and municipality employees may not be aware of.
At Pavestar we take pride in educating people everything about asphalt — this is our passion.
So please, take a look at this step-by-step overview of what an asphalt pavement installation requires — from demolition all the way to a smooth, new surface.
Step 1: Demolition / Removal
The first step in the asphalt installation process is to remove the existing surface, whether it is failed asphalt, concrete or pavers. Click here if you want to know if you should remove your existing surface
NB : Please note that its not every surface that is supposed to be removed. If the existing surface is strong & firm they is no need to remove the surface prime is supposed to be primed to bind the asphalt.
- Demolition and removal is completed using heavy machinery, including small bobcats and forklifts and when necessary, front loaders and large dump trucks.
- Debris is then removed.
Step 2: Grading and Sloping
With a clean slate, technology helps Pavestar asphalt professionals prepare the surface for appropriate water drainage.
- Using laser-guided transits and automatic motor graders, the Pavestar team grades the surface to be paved to ensure that water will run-off appropriately.
- Proper water drainage is vital to your asphalt because water is a major cause of damage, including potholes, cracks, and heaving.
Step 3: Prepare the Sub Base
You’d never guess that the most important part of your new asphalt surface is actually the sub base.
- The sub base provides a stable surface to support new pavement.
- The sub base is a frost barrier to help reduce winter damage due to freezing and thawing.
- During the installation, base thickness, base stability, and compaction are essential steps. If the sub base is not appropriately compacted, the asphalt surface on top will not provide years of durability.
Step 4: Humidity / Compaction Test if the area have high traffic volume
This should be done by a civil engineer . Its very important to do these tests.
Step 5: Binder and Surface Course
This is very important part not to be set apart. Importance of Prime Coat NB – This Stage Should not be Skipped
Once the sub base is laid and any soft areas are identified and repaired, it is time to add the binder.
- The binder should be sprayed. This is a MUST DO
- The binder layer can be thought of as the strength of any new asphalt surface.
Step 6: Install New Asphalt Surface
Once the supportive structures of a new asphalt surface are installed, the top layer of fresh asphalt is added to provide a clean, smooth ride.
- Surface asphalt is made up of small aggregate, sand, and emulsion.
- This combination of materials creates jet-black asphalt that, when installed appropriately, provides a smooth ride and a shiny, attractive finished surface.
Step 7: Butt Joints and Transitions
It is very rare to install an asphalt surface that does not connect to existing driveways, roadways or parking lots. As such, asphalt-paving contractors must find a way to smooth the transition from old surface to new.
- Butt joints are areas where old asphalt or concrete meets new asphalt pavement.
- These transitional areas require special attention to ensure that the grading and water run-off is appropriate.
- Butt joints are important to ensure drivers and pedestrians don’t notice a difference in the surfaces.
To Complete the Project: Final Roll
Once the asphalt and butt joints have been laid, the entire surface is smoothed and compacted.
- Using a roller truck, the new asphalt pavement surface is compacted and smoothed.
- This process step ensures that no small bumps of aggregate or stone are left poking through the smooth new surface.
Your asphalt paving contractor should follow these installation steps to make sure your new asphalt surface will provide years of durability and functionally for your home, business, city or town.
But remember that installation process should only follow a proper surface inspection and a complete estimate. Take a look at the articles below that explain those processes completely.
hWith 15 years of asphalt paving experience, from roads to driveways, we are your local source for all of your asphalt paving needs.
For more information on Pavestar or to request a free estimate for your next paving project contact one of our two offices. If you live or work in the Pretoria area, call us at 0738245546.