Posted on: 18 October 2017
Your asphalt surface needs to have certain characteristics to make it durable and long-lasting. Here are two tips for you to consider for creating durability when installing your next asphalt pavement.
Prepare a Solid Foundation
Before you pour your asphalt, preparation of its foundation will determine whether your asphalt will be durable or weak. First, level the soil to remove any rocks or other debris, then check the soil for its make-up. Depending on the type of soil you find on your pavement's site, you will need to either increase or decrease the amount of aggregate, or gravel, needed to make the surface strong.
You can hire a soil engineer to test your soil, or check it yourself to see if it is sandy or contains clay. Sandy soil has the proper drainage characteristics you will need for the asphalt's foundation and you can use a less-thick layer of compacted gravel. Soil containing more clay will not provide proper drainage under your asphalt and you will need to pour a thicker layer of compacted gravel. The gravel helps drain water from beneath the asphalt's layer and helps prevent soil heaving and damage from freezing conditions.
When you install the gravel, make sure the gravel is angular in shape. This provides edges on the gravel, which grip at one another when compacted with your roller or vibratory compacting machine. This interlocking layer of gravel provides durability to your asphalt's flexibility.
Install Edging Material
The edges of your asphalt surface will also provide durability to ensure your paving lasts for a long time. Improper edging or poor support around the asphalt's edges can cause cracking and unraveling of the aggregate, especially when a vehicle accidentally drives off its edge. Eventually the cracks around the edges of your pavement will travel through to the entire surface of the asphalt.
You can install a stone or brick boarder around your asphalt, which needs to be completed prior to pouring of the asphalt. You would need to dig a trench and install concrete forms where the boarder will be installed and set with stones or bricks. Once the concrete has cured, remove the forms and you can pour the asphalt, compacting it in place. Be sure the asphalt does not spill over onto the boarder but is set level against the stone or brick boarder.
Another method to secure the edges of your asphalt is to pour the asphalt, angling the edges of the asphalt at a 45 degree slope. Then, you can pour a layer of gravel along the edges of the asphalt, overlapping the gravel onto the asphalt's angled edges. For more information, contact companies like Northern Asphalt LLC.Share