Asphalt driveways and parking areas are an important investment worth protecting as much as possible. In our experience, one way to protect your paved surfaces is to be aware of what can damage them. Asphalt is considered to be one of the most durable types of pavement available, so why does it deteriorate? Let’s look at a few key factors that contribute to the deterioration of asphalt and what paving companies can do to protect your surfaces.

Water

As with any material, asphalt will naturally deteriorate over time. Asphalt contains a liquid binder that acts as a glue for the pavement. When this glue loses its natural resistance to certain elements, it starts to break down. Once that glue breaks down, the other components of the asphalt will start to break down as well. One of the most significant factors that contribute to deterioration is water exposure. When paved areas aren’t properly maintained and water isn’t properly managed, it will penetrate into the pavement. Water can wash out the base underneath. This will then cause the pavement to crack, break down, and collapse.

Sunlight

When paved surfaces aren’t properly protected with seal coating, sunlight can create an oxidation process. This oxidation process breaks down and dries out the liquid asphalt. This is the component that holds the aggregate elements together. Once this happens, there will be raveling and shrinking cracks. This allows more water to penetrate, causing further damage. Paving companies can help with seal coating.

Chemical Exposure

Because paved surfaces have vehicles parked or driving over them most of the time, the exposure and risk of chemicals or oil are always present. When these substances are introduced to the asphalt, they can soften the pavement and break it down more quickly. Be sure to clean up any spills as soon as possible to ensure the longevity of the surface.

To protect paved surfaces from these risks, asphalt needs to be properly maintained and sealed. Did you know that, according to the National Asphalt Pavement Association, over 90% of the parking areas in the U.S. are covered with asphalt? If you’re looking for local paving companies to help you with these services, there's help available no matter where you are. If you're in the Tampa, FL area, however, be sure to contact Alto Construction! We're here for your paving needs.