Abstract Manager

Vince Aurilio, P.Eng.,
Senior Technical Director
Sripath Technologies LLC

Enhancing the sustainability of the pavements is of increasing importance as more transport agencies and municipalities around the world look to reduce their environmental impact. Stakeholders are looking for materials that will help reduce costs, improve roadway performance, and reduce the carbon footprint. These efforts encompass several avenues of pursuit, such as: reduce dependence on non-renewable resources, utilize more carbon-friendly raw materials, employ sustainable manufacturing methods and modes of transport, and reduce generation of waste.

Bitumen may be an age-old material when it comes to paving, but recent innovations have demonstrated that the bitumen and asphalt industry can adopt sustainable measures that both improve performance and reduce cost in the long run.

This paper reviews the role of sustainable additives in helping reduce the carbon footprint of asphalt roadways. Data is presented for ReLIXER®, a bio-oil based asphalt recycling agent used to design and improve the performance of asphalt mixtures with high reclaimed asphalt pavement (RAP) contents.  Sustainability claims are supported by validated studies and easily accessible Environmental Product Declarations (EPDs).

These products have been evaluated and vetted by experts from around the globe and are routinely used to deliver high-performance roadways worldwide. Contractors and transport agencies are looking for materials that not only improve the performance of asphalt roadways, but also help reduce costs, while helping reduce the carbon footprint.

Keywords:

Asphalt Recycling Agent
Sustainable Roadways
Reduce Carbon Footprint
ReLIXER
High-RAP Mixes