In his first LinkedIn article, as shown below, Patrick Nation, Executive Vice President – Pavement & Coating Resources, Ergon Inc., shares his thoughts on sustainable roadway systems and invites us to be part of the conversation.

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At Ergon, we’re constantly looking ahead to see how we can continue to meet our customers’ needs while contributing to advancements in the asphalt industry. While we’ve always operated as a company that considers the long-term impact of our service solutions, there is a heightened global focus on sustainability. For the asphalt industry in particular, the focus is on achieving sustainable roadway systems.

But what do Sustainable Roadways mean? Does it involve developing road systems that last longer and use materials with a lower environmental impact? Or is it about constructing roads from materials that would otherwise end up in landfills, thus reducing environmental harm?

Let’s explore both scenarios.

Low-Impact Materials That Extend Service Life
First, sustainable roadway systems can be designed and engineered to endure for many years using low-temperature asphalt mixtures and maintenance techniques that minimize environmental impact while extending the lifespan of roads. Proven solutions in this category include asphalt emulsion treatments (lower temperature treatments) and warm mix asphalt (low-temperature mixes), both of which are readily available to specifying agencies. These methods focus on long-term durability while reducing the energy and emissions associated with road construction and upkeep.

Recycled Materials for Use in Road Construction
The second approach uses a variety of recycled materials that, while they may not extend the life of the road as much as the first method, contribute to a circular sustainability model. By incorporating materials that would otherwise end up in a landfill, like roof shingles, used tires or recycled cooking or motor oil, this method allows new uses for waste materials in road construction.

A Holistic Approach to Sustainable Roadways 
The point here is not to argue which approach is superior, but rather to explore the concept of sustainability itself. What truly benefits the environment? Today, the term sustainability is frequently used but often lacks a consistent definition, making it challenging to foster innovation and establish clear paths toward better roadway systems.

At Ergon, we believe sustainability is multifaceted; any effort to recycle materials, reduce environmental impact and extend service life impacts sustainability. At its core, sustainability is more than just maintaining the status quo – it’s about innovating for a cleaner future for generations to come. I’m interested in hearing your thoughts on what defines a sustainable roadway system. Your insight is vital to fostering future-ready industry solutions.

Please reach out at InnovativeRoads@ergon.com or connect with me personally on LinkedIn.

Thank you for taking the time to consider this important issue.