At D&J Construction LLC, people often ask us whether it’s possible to lay new asphalt over an existing concrete driveway. This is a question every property owner should ask before a paving project.
As the leading paving experts in Elsa, Texas, we are installing new asphalt all the time. Click here to view our asphalt paving services. And today, we will tell you why you should remove the concrete driveway before laying new asphalt.
You Can Lay Asphalt On Concrete
To start off, it is not necessary to remove your concrete driveway before laying asphalt. In some cases, we even recommend asphalt driveways over concrete. This offers several benefits.
For one thing, it is faster to install a new asphalt driveway over concrete. Moreover, not only does concrete provide a sturdy base for the driveway, the new structure will have better weather resistance. It is also cost-effective to lay asphalt on a concrete driveway instead of investing time and money to dig up the concrete slab.
However, this doesn’t work in all cases. And there are two major reasons to get the concrete removed first.
The Sub-base May Be Faulty
When it comes to paving asphalt, the initial preparation of the site is of tremendous importance. If the sub-base is shaky or faulty, the asphalt pavement will not be stable. However, with a concrete slab, you don’t have to worry about preparing the base as it remains sturdy.
The problem is that you can never know whether the ground beneath is prone to shifting and sinking until the concrete is dug up.
Along with a faulty sub-base, there may be something wrong with the concrete layer itself. In both these cases, your asphalt driveway will deteriorate faster than usual, leading to ongoing repairs. In the worst-case scenario, the entire surface can be cracked if the ground shifts in Elsa, Texas.
In short, you should consider removing concrete to detect problems with the sub-base and avoid costly and dangerous issues.
Your Asphalt May Not Last Long
When it comes to driveway construction, asphalt is the most durable material out there. An asphalt driveway can easily last 20 to 25 years, depending on how well you maintain it. Filling cracks and sealcoating every couple of years ensures the longevity of your pavement.
However, laying asphalt over concrete can diminish your driveway’s lifespan, no matter how well you maintain it. And the money you save initially by not removing concrete will be spent on costly repairs and sooner-than-expected replacement.
An asphalt driveway will only achieve its full-service life when it’s built from the ground up. This not only ensures a stable base but over time, you will have to spend lesser time and money on repairs and maintenance.
These are the reasons to keep asphalt and concrete separate. In some cases, asphalt and concrete blend well, such as creating edges and curbs. But for the best results, you should dig up the concrete before installing a new asphalt driveway.
Want to learn more about different construction materials? Click here to talk to our experts at D&J Construction LLC.