Did you know that choosing the right asphalt mix can extend your pavement’s life by decades while cutting maintenance costs? Asphalt is a versatile material used in a wide range of construction projects, particularly in commercial paving. Whether you’re working on a large parking lot, a new roadway, or a driveway, understanding the different types of asphalt can help you choose the right one for your project. 

Contractors use various types of asphalt mixes in commercial asphalt paving projects, from asphalt repair jobs to full-scale commercial and industrial construction. Learn about the most common types and how each can meet your project’s specific needs, from durability to cost-effectiveness.

Hot Mix Asphalt (HMA)

Hot Mix Asphalt (HMA) is the most widely used type for large-scale commercial paving projects. It is made of approximately 95% stone, gravel, or sand and about 5% asphalt cement. 

HMA is produced at high temperatures, typically between 280°F and 325°F, which results in a durable and long-lasting surface. The high temperature also makes HMA easier to pour and work with, allowing for better application and smoother finishes. The main characteristics and benefits of HMA are:

• Durability. HMA can withstand heavy traffic, extreme weather, and other stressors, making it ideal for highways, roadways, and high-traffic parking lots.
• Smooth finish. The high temperature and mixing process provide a smooth, even surface that improves the pavement’s aesthetic and functional qualities.
• Longevity. With proper maintenance, HMA can last decades, resisting cracking, rutting, and other common pavement issues.

 

HMA is a top choice for commercial construction companies needing a reliable and durable paving solution. Its ability to handle heavy traffic loads and severe weather conditions makes it a go-to for long-lasting roads and parking areas.

Cold Mix Asphalt (CMA)

Cold Mix Asphalt (CMA) is a more cost-effective and versatile alternative to HMA, typically used for temporary repairs or low-traffic applications. Unlike HMA, which requires high temperatures during production, CMA is mixed at ambient temperatures, making it easier to handle and apply. The primary uses of CMA include:

• Pothole and crack repairs. CMA is ideal for filling potholes and cracks, providing a quick, temporary solution for surface issues.
• Cold-weather use. Because it doesn’t require high heat, CMA can be applied in cold weather conditions, making it a good option for winter repairs.
• Affordable solution. CMA is less expensive than most other asphalt mixes, making it a budget-friendly option for short-term fixes.

 

However, CMA is unsuitable for high-traffic or heavy-load areas due to its lower durability than HMA. An experienced asphalt construction partner will typically recommend CMA for temporary fixes and low-traffic areas, where it can be a quick, economical solution.

Warm Mix Asphalt (WMA)

Warm-mix asphalt (WMA) is produced at lower temperatures, typically between 200°F and 250°F, making it an attractive option for projects that balance performance and sustainability. 

The lower production temperatures reduce energy consumption and emissions, making WMA a more environmentally friendly choice with benefits like:

• WMA is cold-weather friendly. It can be applied in cooler temperatures, making it an excellent choice for spring and fall projects or regions with milder climates.
• Sustainability. The reduced temperature during production lowers energy use and emissions, making WMA a greener alternative to HMA.
• Versatility. WMA offers a good balance of performance and environmental benefits, making it suitable for various commercial applications, from parking lots to roadways.

 

Although WMA doesn’t offer the same durability or longevity as HMA, it is an excellent option for many projects. For instance, a local commercial asphalt paving company may recommend WMA in the fall or winter if you are considering a commercial asphalt project in Charleston, SC.

Porous Asphalt Mix

Porous Asphalt Mix is a unique type that lets water pass through its surface instead of relying entirely on grading and water redirection. It’s an excellent solution to manage stormwater and reduce runoff and is a common choice for outdoor asphalt surfaces in rainy regions. The main advantages of this asphalt type include:

• Stormwater management. Porous asphalt helps prevent flooding by allowing rainwater to filter through the pavement rather than pooling on top. This reduces the need for expensive drainage systems.
• Environmental impact. Porous asphalt supports green building standards and environmental regulations by managing water runoff and reducing pollution.
• Improved drainage. Porous asphalt increases safety in wet or freezing conditions by preventing puddles and ice formation.

 

While porous asphalt is highly beneficial in areas with high rainfall or water drainage concerns, it is unsuitable for high-traffic or industrial applications. Its lower durability means it’s best used in low-traffic areas like commercial parking lots or pedestrian pathways.

Choose the Right Asphalt for Your Project

When selecting an asphalt mix for your project, consider your site’s specific needs. Whether you need a commercial or industrial project completed, each type of asphalt has unique benefits and drawbacks.

For more information or to discuss your next commercial paving project, reach out to Howell & Simmons Construction & Paving. We specialize in commercial asphalt paving in Charleston, SC, and can help you choose the best solution for your needs.