Asphalt Over Concrete Driveway

Considering an upgrade for your driveway? Asphalt over concrete driveway is a popular choice, offering a durable and cost-effective solution. Learn about the advantages and considerations of this surfacing option.

Asphalt over concrete driveway involves applying a layer of asphalt over an existing concrete surface, enhancing its appearance and performance. This method capitalizes on the durability of concrete while benefiting from the flexibility and weather resistance of asphalt. The process typically involves thorough cleaning, applying a bonding agent, and adding the asphalt layer. This combination results in a robust driveway that withstands varying weather conditions, providing a smooth and long-lasting surface.

Explore the practical advantages of choosing asphalt over a concrete driveway, uncovering enhanced aesthetics and improved longevity. Delve into the seamless integration of asphalt, guaranteeing a dependable and cost-efficient upgrade for your residential or commercial property.

10 Steps to Install an Asphalt Overlay on a Concrete Driveway

Embarking on the journey to enhance your concrete driveway with an asphalt overlay requires careful planning and execution. Follow these 10 comprehensive steps to ensure a successful installation of asphalt over a concrete driveway. From thorough cleaning to strategic maintenance, each step contributes to the longevity and performance of your upgraded driveway.

1. Clean the existing concrete surface thoroughly

The worker is cleaning the concrete driveway before applying asphalt

Begin by meticulously cleaning the concrete surface, removing all debris, dirt, and contaminants. A clean surface ensures optimal adhesion and longevity for the asphalt overlay, creating a solid foundation for the installation process.

2. Repair any cracks or damage in the concrete

Identify and address any existing cracks or damage in the concrete. Use appropriate repair materials to restore the integrity of the surface. This step is crucial for achieving a smooth and uniform substrate, minimizing the risk of future issues.

3. Apply a bonding agent to ensure adhesion

Prior to asphalt application, apply a high-quality bonding agent on the prepared concrete surface. This agent enhances the adhesion between the existing concrete and the new asphalt overlay, promoting a strong and durable bond for long-lasting performance.

4. Install an asphalt leveling course if needed

The workers are leveling the asphalt where it is needed

Depending on the condition of the existing concrete, consider installing an asphalt leveling course as a preparatory step for the Asphalt Over Concrete Driveway. This ensures a uniform surface, addressing irregularities in the concrete substrate before applying the final asphalt overlay.

5. Spread a layer of hot mix asphalt evenly

Apply a layer of hot mix asphalt evenly over the prepared surface. The hot mix, composed of aggregates and asphalt cement, forms a durable and resilient top layer. Ensure uniform distribution to achieve a smooth and aesthetically pleasing finish for your driveway.

6. Compact the asphalt layer using a roller

Employ a heavy roller to compact the freshly laid asphalt layer. This compaction process ensures density and stability, eliminating air voids and enhancing the structural integrity of the driveway. Proper compaction is essential for the asphalt’s resistance to wear, tear, and deformation.

7. Allow the asphalt to cure and harden

After compaction, allow the asphalt to cure and harden. Follow the recommended curing time to ensure the asphalt reaches its optimal strength and durability. Curing is a critical phase that contributes to the overall longevity and performance of the asphalt overlay.

8. Seal the asphalt for added protection

The worker is applying the sealant for longer life of the asphalt on the driveway

After the Asphalt Over Concrete Driveway has cured and hardened, apply a quality sealant. This protective seal enhances the longevity of the asphalt overlay, safeguarding your investment against environmental factors. Regular sealing is a key maintenance practice for an enduring and well-protected driveway surface.

9. Ensure proper drainage for water runoff

Verify that the asphalt overlay promotes proper drainage. Adequate slope and design considerations prevent water accumulation, reducing the risk of ponding and water-related damage. Proper drainage is essential for maintaining the structural integrity of the asphalt over the concrete substrate.

10. Regularly maintain and repair as needed

Implement a proactive maintenance plan for your asphalt over concrete driveway. Regular inspections, cleaning, and timely repairs address minor issues before they escalate, extending the lifespan of the installation. Routine maintenance preserves the aesthetics and functionality of the driveway over the long term.

Is it Possible to Pave Asphalt over a Concrete Driveway?

As a homeowner, you are indeed searching for options that provide more stability, comprehensive services, and excellent weather resistance. For all this, asphalt pavement over existing concrete is an excellent idea because it gives you all that and lots more.  Installing Asphalt over a concrete driveway is certainly possible. Many homeowners now pave Asphalt over their concrete because it offers several advantages.

However, when doing so, you need to consider a few facts. Concrete is a strong and stable material, so you will have an even harder surface when you pave Asphalt over it. But this can only be successful if your existing concrete is in a stable and well-prepared sub-base, or else you will end up with an unstable and prone-to-cracking driveway. One cannot doubt that paving asphalt over a concrete driveway that has an appropriate compaction sub-base is always a superior pavement.

Why You Should Remove Concrete Before Installing an Asphalt Driveway

The new asphalt over concrete driveway

Even in today’s context, investing in an asphalt installation is a significant commitment that homeowners can’t undertake frequently. Therefore, when you opt for an Asphalt driveway, the expectation is that it will serve you well for at least two decades. Achieving this longevity requires adherence to proper installation and maintenance protocols.

For optimal durability, the paved asphalt driveway heavily relies on the strength of its underlying base. The approaches contractors use for robust driveways vary between Asphalt and concrete. In concrete scenarios, contractors aim for durability by laying thicker slabs. However, they often neglect proper preparation for accommodating an asphalt layer on top, potentially compromising the stability of the Asphalt Over Concrete Driveway.

This problem with the base may adversely affect the asphalt driveway’s durability and may reduce its life. Since no homeowner would enjoy a premature replacement of the Asphalt, it is, therefore, necessary to dig up your existing concrete drive to pour new Asphalt over it. With a more stable foundation, Asphalt has a higher lasting potential. 

Furthermore, concrete has a fluctuating nature, which does not align well with Asphalt. When temperatures fluctuate, it is the nature of Asphalt to contract and expands and thus needs a stable base beneath. Only when you are confident of the concrete driveway condition underneath and its appropriate compaction and stability can you consider pouring Asphalt over it? 

Why You May Want to Switch from Concrete to Asphalt

If you mainly live somewhere where the temperature fluctuates frequently, then Asphalt is ideal for paving. It can better handle fluctuations than concrete, which tends to crack a lot more than in severe winter weather. 

In most cases, Asphalt performs just as well as concrete, provided you put it down the right way and maintain it well too. You will find repairs must be cheaper for Asphalt than concrete because patch and sealing holes and cracks do not weigh heavily on your pockets. 

Besides, resurfacing layers work better when driveways begin to age and Asphalt again takes the lead. Resurfacing is advantageous for homeowners because it is cost-efficient and maximizes the life of the driveway.

Concrete cannot give you these two advantages because of the lack of resurfacing. Due to this, you have to replace the entire driveway once it reaches the end of its life. Hence, if you have been weighing the advantages of Asphalt over concrete, then as a summary, here is what you can base your decision upon:

  • Concrete does not survive well under harsh colder climates
  • Concrete is harder to repair
  • It is more expensive
  • Asphalt is budget-friendly
  • It offers resurfacing facility, so you do not have to replace the entire driveway
  • You can install asphalt faster
  • Asphalt requires easy maintenance

Pros and Cons of Asphalt vs. Concrete

The image shows the asphalt and concrete

When ruts, stains, and cracks become increasingly evident on a driveway, homeowners cannot decide on a new installation. However, picking one out of the two most common solid materials for pavement is not that easy.

Concrete and Asphalt have their own sets of pros and cons. While they mostly contain a mixture of stone and sand and lay over a gravel substrate, their adhesive components differentiate the nature and functionality of the two.

Let’s look at the pros and cons of both materials below:

Concrete-Pros

  • With concrete, you get more visual options. You will find concrete in a pale gray color in basic form, but it responds better to tinting or staining in any color you fancy. You may even stamp concrete with patterns if you want a textured finish. 
  • Concrete is the better option for regions where hot summers are typical. Asphalt does not work well in such places because the heat tends to make it sticky and gooey. Additionally, the process of softening in hot temperatures and re-hardening when it cools down causes cracks and sagging. 
  • Asphalt requires resealing every couple of years, but this is not necessary in the case of concrete driveways. You may seal concrete voluntarily to reduce fading, especially if you want a tinted driveway. 

Concrete- Cons

  • Typically, your driveway will have to endure rust, gas drips, and engine oil drips over its lifetime. Concrete has a lighter surface; hence you will find every spill and mark visible. If you want to maintain its good looks, you will have to degrease and clean aggressively
  • Concrete does not survive well in colder climates. You will find it cracking and buckling more every time winter sets in, and it snows. Concrete can also develop ugly marks from blotching, staining, or pitting from salt for melting the ice
  • Concrete may not give a streamlined appearance to match your streets. 
  • It requires tougher maintenance. 

Asphalt- Pros

  • Asphalt has a darker color, so it is good at concealing stains and signs of wear and tear. 
  • Asphalt installs faster, and you can use it within a couple of days of the process. In the case of concrete, you have to wait for enough for it to cure before you can use it. 
  • Asphalt is not as costly as concrete. It will cost you nearly less than forty to fifty percent than its counterpart.

Asphalt-Cons

  • It does not last longer than a concrete driveway that you install well and maintain properly in favorable climates. The lifespan of a concrete driveway can be up to thirty or forty years, while an asphalt driveway, it is not more than thirty years at best.
  • Asphalt does not survive well in hotter climates, and the expansion and contraction from melting and re-hardening can cause and widen cracks. 
  • It may be easy to maintain, but the maintenance does not last beyond three to four years. You will find yourself repairing your asphalt driveway more often than a concrete one. 

The Cost of Switching from Concrete to Asphalt

The workers installing asphalt over concrete driveway

One of the reasons why homeowners popularly prefer Asphalt over concrete these days is the cost difference. On average, a concrete driveway is more expensive than an asphalt one, with the former costing you approximately $4 or more per foot and the latter nearly $2 or more per foot. 

The price of Asphalt largely depends on crude oil prices and fluctuations in those that cause the other to fluctuate. As a comparison, you will find the standard installation of a concrete driveway costs you approximately $4 to $6 per square foot. 

Concrete Surface Removal Cost

Despite some of its drawbacks, one cannot doubt the long-lasting capacity and strength of the concrete material for driveways and other construction projects. It can serve you well for years, but as time advances, you will find it giving in to cracks from climatic changes, movements, and eventual unsettling. 

In due time, concrete will fail when it has lived well and under aggressive conditions for long years. This is when you will need to replace it entirely. However, it would be best to prepare for the wide range of costs incurred in concrete removal. 

These costs mount up considering the concrete’s location, thickness, and how much of it you remove. In terms of replacement, generally, you have to replace the entire driveway because resurfacing is not an option in concrete. 

For this very reason, the national average cost range for concrete removal can fall anywhere between $500 to $5000. As an estimate, most homeowners pay approximately $1,846 for removing six hundred square feet of their concrete pavement. 

Removal Price as per Concrete Type

The concrete installation has two types:

  • With reinforced concrete- this is merely a concrete slab
  • Or with unreinforced concrete- with rabar embedding

The cost of concrete removal also depends to a large extent on the type of concrete that went into your driveway. Both types differ in removal costs because they consider the location and size of your area. The contractors also have to include the costs of machinery they will employ and transport to your area for the removal process. For this, they have to measure the thickness and the existing concrete and the level of equipment they will have to use.

Ultimately, all these add up to the final cost of the process. 

Asphalt Pavement Prep/Installation Cost

Asphalt installation is a prevalent trend because of the many advantages it gives to homeowners. From enhanced drivability to increasing your curb appeal, new asphalt pavement can increase your home’s resale value and give you many attractive benefits. 

The cost-efficiency and easy maintenance win hands down with homeowners, while the eco-friendliness, higher tolerance of weather, and improved safety please all. But most importantly, its cost-friendliness is why most homeowners turn to this material.

Who can ever argue against the charm of acquiring a qualitative material for the home at affordable rates? None we believe!

Calculating the cost of asphalt installation

The road under constructions for asphalt installation over the old concrete driveway

While it would be difficult to quote a definite figure, the truth remains that Asphalt falls much cheaper than concrete. The final cost takes into account the manufacturer and the kind of mix they use for the Asphalt, but even then, the final estimate fits into every homeowner’s budget. 

The final cost also depends on the location, the size of your project, and the sort of equipment and workforce that will go into the process. The national cost range of paving an asphalt surface per square foot is generally around $6. 

So if we look at the total, an asphalt driveway will roughly cost around $4,500 to $6,100. The installation would also consider factors such as the time it took, workforce, and the magnitude of the construction in addition to secondary factors. These include what it took to rip out your existing surface, how the contractors had to haul it away, and what other steps were required before laying down your new asphalt mix. 

Deep dive into asphalt installation costs

The final cost of your asphalt installation will also include:

  • Excavation of the existing surface
  • Installing a gravel foundation
  • The amount of tonnage
  • The cost of transportation from the plant of asphalt production to your project’s location
  • What other materials did the contractors need in addition to the Asphalt
  • What base coat do they apply
  • Market environments, including construction activity, permit requirements, and current prices of oil. 

Final Thoughts 

If you are considering pouring Asphalt over the concrete driveway, then the process is possible. However, you can only expect the surface to be stable and reliable if you have a properly compacted subbase beneath, or else resurfacing with Asphalt will fail. 

From easy maintenance to being less costly, Asphalt is advantageous over concrete in multiple ways and can also increase your home’s resale value.