Like most driveway paving contractors, we offer a milling, stabilization and pulverizing service to our clients.
Milling, pulverizing and stabilization are all processes which may be employed in an asphalt paving project.
But knowing which, if any, of these processes need to be undertaken, is a decision which requires an asphalt pavement contractor, with some experience and knowledge in the field.
Here’s a run-down of what they entail.
WHAT IS ASPHALT MILLING?
Milling is when the current asphalt layer is taken off and then replaced to a specified level. This removes the old, damaged layer and replaces it with an all new topping of asphalt – without raising the height of the road.
The advantages of milling are that it will not disturb your sub base, thereby leaving structures like drainage ditches and curbs without alteration.
Milling is a great and cost effective way of getting a new asphalt pavement, without the full cost of an entirely new construction.
WHAT IS PULVERIZING?
Pulverizing is a process which is designed to save you money on the cost of reconstructing a pavement or parking lot.
It recycles the old materials in a pavement, because they are re used immediately in the construction of the new one.
This saves the client money and also reduces the need to remove a lot of material, which saves time and trucks!
WHEN IS PULVERIZING USED?
Pulverizing is used in cases where milling is not suitable for a pavement or parking lot.
This is when the pavement or road is in such a bad way that it would not be able to support the weight of the paving equipment on it, without breakages occurring.
When a highway or pavement is this weak, then pulverizing is an option.
Tests are performed to distinguish whether milling or pulverizing are appropriate for your pavement. If the base thickness of the stone is not capable of sustaining the paving equipment, then pulverizing can be carried out.
The existing pavement is then pulverized and can be used as a new base for the new structure.
WHAT IS STABILIZATION?
Stabilization, or rebasing, is a continuation of the process which starts with pulverizing.
Once the asphalt has been crushed, then binding agents, tar and other waterproofing elements are laid on top of it. This allows the mixture to bind with the crushed asphalt.
Then, it is left to harden for a day or two.
The end result is a completely reconstructed parking lot or driveway, created with a minimal amount of new asphalt.
It is as strong and good as any new driveway or road can be, but costs far less to install!
HOW REBASING OR STABILIZATION CAN HELP
Stabilization can often help with problematic soils. Rebasing will help preserve the life of a pavement for years to come.
Drainage issues can be addressed by using drain tiles, to drain the water from boggy areas.
The stone base can be improved and brought to a suitable depth to better support the pavement.
All this results in a stronger, tougher and more resilient pavement.
WHAT REBASING DOES
The original paving materials are taken away and recycled.
The base will be assessed for its depth and condition. If it is possible, this will be kept on site for recycling and re use in the new construction.
If this can’t be done, then it is removed, leaving the subsoil. The subsoil is also tested for its suitability and here geo textiles, drain tiles or grids can be used to address the issue of problem soils.
WHEN IS STABILIZATION USED?
Although pulverizing and stabilization may be used on a domestic driveway, it is usually commercial and public projects which it is most likely to be used for.
To our municipal clients, the pulverizing and stabilization processes represents a great way to minimize disruption to the traffic flow – keeping roads open for longer.