Wildfires and brush fires can occur often across the West Coast of the United States. Fires have a large impact on the landscape, lodging, roadways, and more. While fires create effects that last for years, they can also impact the driving conditions on asphalt roads. The damage that is inflicted by a fire can damage asphalt with its high heat, and the resources used to fight it.
Damaged asphalt can make driving more dangerous, harm the environment, or cause damage to vehicles. Improving roadways after a wildfire will provide the city with fewer legal problems and safer driving conditions for residents and visitors. Let’s look at how fire can damage or change the asphalt in your state.
The Impact Of High Heat On Asphalt
Since asphalt is made of petroleum-based materials with bitumen and aggregate components, it can begin to deform during the extreme heat of a wildfire. While hot summer days will not change the composition of an asphalt road, wildfires can reach temperatures of up to 1,400 degrees Fahrenheit, which can cause the binding agents to deform or melt. These high temperatures can cause pieces of the asphalt to dislodge or shift, creating cracks or potholes.
Cracking And Long-Term Damage
During a wildfire, emergency vehicles will be dispatched to the area to help rescue victims and control the fire. The high temperatures with heavy vehicle traffic can lead to extra stress on asphalt, causing it to crack. When asphalt experiences more weight than it can handle, it cracks in multiple directions, known as alligator cracks. Crosshatch cracks can be repaired, but if a wildfire continues to rage, the asphalt may need to be replaced entirely.
Water Erosion
Firefighters will need to use water to contain the flames from spreading to other areas. This large amount of water can erode the surrounding vegetation and the asphalt. Without proper surrounding vegetation that was either burned or eroded, over the coming months, rain and snow could cause asphalt to crumble at the edges. In climates that experience snow, moisture in the cracks is subject to expansion and contraction, which could further the damage. Cold temperatures can expand the existing cracks, making the road more susceptible to crumbling.
Increased Heat Absorption
Asphalt that has been burned will absorb more of the external heat and retain it. While asphalt can absorb heat from the sun normally, once it is burned during a wildfire, it will hold on to more sun rays and raise the temperature of the surrounding area. Heat islands are often a concern for urban areas and make homes and businesses much warmer. Fire-scorched regions due to wildfires will create more heat islands that contribute to climate change and damage fragile ecosystems.
Harmful Pollutants
Once asphalt is heated, it can emit hazardous vapors that pollute the air. Heated asphalt will contribute to air pollution concerns in addition to ash and smoke that is prevalent during a wildfire. The number of pollutants during a wildfire will be significantly increased when it crosses over an asphalt road or parking lot. A wildfire that sweeps through the area will have lasting effects on the environment, roadways, and homes for many years.
How To Prevent Asphalt Damage From Wildfires
While some cities may not be able to prevent wildfires or the damage that comes after, there are some methods that can reduce the impact they have on asphalt and other natural elements. One preventative measure is to implement fire-resistant road design with heat resistant binding agents. For places that experience frequent wildfires, implementing the heat-resistant asphalt will keep your roads operable for longer.
Protective sealants can also create an additional layer of defense against weather, fire, and pests. These sealants can help reflect sunlight and heat, making the area cooler and less susceptible to cracking.
Other ways to protect your asphalt include:
- Regular inspections
- Frequent maintenance and repairs
- Vegetation management
- Sealants and protective layers
Asphalt Repair From Precision Asphalt Maintenance
Our team specializes in all things asphalt, including repairs and protective sealants. We know that wildfires can result in long-lasting damage that will be impossible to repair in one day. Precision Asphalt offers repaving and repair that can be essential after the effects of a wildfire. Our maintenance team serves Utah and Wyoming to help drivers stay safe, reduce extreme heat, and keep your customers safe in an asphalt parking lot. Reach out to us to schedule your asphalt or concrete service today!