A Brief Guide to the Different Types of Asphalt Grades

You have many options when laying down asphalt. Your project’s success hinges on choosing the right type, but navigating the many grades and blends isn’t always straightforward. This guide to the different types of asphalt grades simplifies the basics so you can make the best decision.

Dense Grade

Dense-grade asphalt refers to mixtures compacted for maximum strength and durability, making it perfect for highways and city streets. Its density limits water infiltration and reduces the risk of cracking over time. Use dense grade asphalt for structural integrity and combatting long-term wear and tear.

Coarse Grade

Coarse-grade asphalt offers more drainage than dense-grade, making it ideal for water management projects. It prevents water from pooling and weakening infrastructure. Coarse-grade asphalt is not as smooth as dense grade but performs well in some construction scenarios, such as sublayers in roads or parking lots that require enhanced water flow.

Stone Matrix Asphalt

Stone matrix asphalt (SMA) resists rutting and wear, particularly under heavy traffic loads. The unique mix of stone aggregate and asphalt binder creates a high-friction, durable, and skid-resistant surface. SMA is common on runway tarmacs or urban roads that endure consistent traffic.

The Performance Graded System

The performance graded (PG) system categorizes asphalt grades based on their performance under varying temperatures and conditions. It accounts for hot and cold climates and evaluates asphalt binders by testing their durability and flexibility.

After exploring this brief guide to the different types of asphalt types, look at the PG system. It can pinpoint the most suitable asphalt that will stand up to the temperature extremes of your location.

Keep All Asphalt Types in Top Shape

No matter which asphalt grade you choose, maintenance and repairs are necessary. Over time, even the most fitting asphalt will wear down. Luckily, you can trust NAC Supply to provide everything you need to keep your asphalt performing at its best. As a trusted asphalt supply company, we have the high-quality asphalt repair supplies you need.