The Ins and Outs of Asphalt: How It's Made

The Ins and Outs of Asphalt: How It's Made

The Ins and Outs of Asphalt: How It's Made

Asphalt is an essential component in the construction industry, but have you ever wondered how it is made? Asphalt is a highly viscous, black, and sticky material that is commonly used for paving roads, driveways, and parking lots. This material is made of a mixture of crushed rocks, gravel, sand, and bitumen. Bitumen is a viscous liquid that is obtained from oil refining, and it’s the glue that holds everything together. In this article, we’ll explore the process of making asphalt, the types of asphalt, and the properties that make it so useful.

The production process of asphalt is a complex and precise operation that requires specific equipment and techniques. The first step involves heating the bitumen to a high temperature until it becomes a molten liquid. Next, the aggregate (crushed rocks, sand, and gravel) is heated in a dryer to remove any moisture. The heated aggregate is then combined with the hot bitumen in a mixing plant where they are thoroughly mixed to form asphalt.

There are two main types of asphalt, namely hot mix asphalt (HMA) and cold mix asphalt (CMA). HMA is the most commonly used type and is produced at high temperatures, typically between 150°C and 190°C. CMA is produced at lower temperatures, typically between 50°C and 80°C. This makes it easier to handle and transport, but it is not as durable as HMA. 

Asphalt has excellent properties that make it ideal for paving applications. It is waterproof, durable, and able to withstand heavy traffic. It also has a smooth surface, which reduces friction and noise. Additionally, it is a recyclable material, which makes asphalt an environmentally friendly choice.

To maintain the quality and longevity of asphalt surfaces, it is essential to conduct regular sealcoating. Sealcoating is the process of applying a protective layer to the asphalt surface to protect it from damage caused by the sun, rain, and traffic. The sealcoat is a protective coating that is applied to the asphalt surface to help it resist damage and extend its life. 



Asphalt is an essential building material that has played a significant role in the development of modern infrastructure. It is an incredibly durable, waterproof, and recyclable material that is ideal for paving applications. However, to prolong the life of asphalt surfaces, regular maintenance such as sealcoating is essential. If you're looking for quality sealcoating contractors in Sanford FL, contact Florida Sealcoating today for a free estimate. Our team of experienced professionals is dedicated to delivering quality services that meet your needs and budget.