Instead of a set number of types, asphalt comes in variations designed for different needs. Some are categorized by temperature—hot mix, warm mix, and cold mix. Others are sorted by composition, like dense-graded, gap-graded (such as Stone Matrix Asphalt), porous, and mastic asphalt. There are also modified versions with added compounds like polymers, rubber, or emulsions. Instead of focusing on a number, it may be more useful to understand how contractors customize asphalt for durability, climate, and traffic conditions.

Recycled asphalt is not better than gravel, but can be a good alternative. It is inexpensive, but not as low-cost as gravel, and doesn’t tend to last as long. Recycled asphalt isn’t as dusty as gravel and is more environmentally friendly. The black look can be something that homeowners prefer. No matter what, ensure you choose an experienced recycled asphalt contractor. 

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.

This creates a risk for your driveway to fail after asphalt curing because it doesn't have a lasting bond with the surface. In order to get asphalt to perform as intended, it's necessary to prepare the dirt surface correctly first. The loose soil base under the new driveway must be compacted until it is stable enough to support the weight of the asphalt.