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  • Professional Paving LLC

Types of Asphalt Pavement

There are several aspects relating to asphalt that most people contemplate. In particular, the kind of asphalt you can use will depend on various factors, the surface you want to construct, the season, and the available material. For people who are new to asphalt, selecting the appropriate type might be overwhelming. To provide you with a detailed understanding of the types of asphalt available, continue reading this guide to using the common ones used when installing pavements.

Warm mix asphalt

It is manufactured between 200 to 250 degrees Fahrenheit. It needs fewer resources and fossil fuels to manufacture than hot mix asphalt. Warm mix asphalt has additional binding material and additives, including zeolites, wax, and emulsions for easier pouring and spreading, especially at low temperatures.

Since a warm mix asphalt is produced and shipped at lower temperatures, it does not cool faster. That enables it to be shipped at longer distances. It is also better for both workers and the environment since it implies less smoke, fumes, and dust at lower temperatures. Further, warm mix asphalt can be used in walking paths, driveways, cart paths, and most roadways types.

Hox mix asphalt

It is heated to temperatures between 300 to 350 degrees Fahrenheit. It repels water and has high water resistance and flexibility, making it the best for interstates, highways, and other roadways. This kind of asphalt tends to cool quickly. Therefore, it is usually used when its temperature is above 40 degrees. Its subcategories include:

Stone matrix asphalt: It is a gap-graded hot mix asphalt manufactured in Europe and provides rust resistance and maximum durability. It also needs modified asphalt fibers and binders, higher asphalt content, and more durable aggregates.

Open-graded mixes: It uses a small amount and manufactured sand and crushed stone. It is designed for water permeability. The common mixes include asphalt treated permeable based (ATPB) and open-graded friction course( OGFC). ATPB is used for drainage since it has less stringent features. In contrast, OGFC contains approximately 15 percent air void.

Dense-graded mixes: it is meant for general use. They are generally classified as coarse-graded or fine-graded, based on the size of aggregate particles used. If you properly mix and pour them, they will be practically impermeable. Dense-graded mixes perform well under all traffic conditions and match well when constructing highways and asphalt roads.

Types of pavement

There are different kinds of pavement, with each type having its strengths.

Quiet pavement

It significantly minimizes pavement noise at the source without requiring you to use noise barrier walls. Resurfacing your surface with an open-graded friction course or stone matrix asphalt minimizes noise by an average of between 3 to 5dB. Using this kind of pavement is simpler and more economical than using sound barriers. It is also commonly used in residential areas.

Porous asphalt

Porous asphalt presents a practical and simple solution for handling stormwater, especially parking lots. It offers a porous surface that enables water to drain through easily. In particular, draining goes into a stone recharge bed before draining into the soil. However, pavement installers need to ensure that the stone bed is at the proper size and depth to prevent the water level from rising to the asphalt and contributing to unnecessary issues. In reality, most stone beads are installed in a depth of between 18 to 36 inches.

Perpetual pavement

It encompasses a combination of asphalt and several multi-layer paving processes. This pavement has a rust-resistant, durable top layer, an intermediate layer for structural purposes, and a solid bottom layer to support traffic strain. You can easily install this kind of pavement, which can last for several years with regular servicing.

Making the appropriate asphalt choice

There are numerous pavement and asphalt types available. Every type offers its own merits and demerits based on the project. Understanding the purposes and differences of each ensures you find the best asphalt that suits your paving needs.

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