You can pour concrete over asphalt if it’s in good condition, thick, stable, and well-compacted. Concrete is more durable than asphalt and can extend the lifetime of your driveway without having to pay frequent asphalt driveway repair costs or replace it completely. 

But this is best reserved as a temporary solution based on budget restraints, as asphalt requires more frequent repairs and assessments than concrete. Once that concrete top is poured, it’ll be harder to accurately understand what’s happening beneath that layer, which could lead to more issues.

The average cost to repair an asphalt driveway is around $2,459 to $2,500. However, prices can range from $100 for minor DIY crack filling to over $4,000 for more extensive professional work. Costs are often calculated per foot, with minor repairs costing $1 to $3 per linear foot and heavier damage like potholes, sinking, or crumbling costing $2 to $5 per linear foot. Patching smaller potholes can cost around $2 to $3 per square foot. The final price depends on the severity and extent of the damage, driveway design, local contractor rates, and whether sealing is included. For major repairs, it is recommended to hire a professional, and you may get a better deal by bundling repair and sealing services together.

If you miss the perfect time frame to trowel finish concrete, you likely won’t get the smooth, flawless result you’re looking for. In this case, you should contact a concrete professional or look to methods like sanding, grinding, or patching once the concrete dries. These methods will ensure the best final result for the lowest cost.

While blacktop is a type of asphalt, the terms should not be used interchangeably, as not all asphalt qualifies as blacktop. The primary differences are in their composition, production process, and ideal applications. Blacktop contains more stone than other types of asphalt and is heated to a higher temperature during production—300°F or more—while hot-mix asphalt is heated to between 275°F and 300°F. The ratio of bitumen (a tar-like crude oil) is a key differentiator, though sources vary: some state blacktop has less bitumen, making it less durable, while others claim it has a higher ratio. Due to these differences, asphalt is generally more durable and better for high-traffic areas like highways and streets, while blacktop is more suitable for playgrounds and residential driveways. For a driveway project, it is best to consult a professional to determine the most appropriate material.