US-based Verde Resources, a sustainable building material solutions provider, has successfully implemented its innovative enzyme technology on the National Center for Asphalt Technology (NCAT) Test Track, thus marking the first-ever use of enzyme technology on the track.
The enzyme technology used in this project has had a transformative impact, integrating green methods into subgrade and sub-base improvement. By eliminating the need for lime and reducing Portland cement usage by over 60%, the technology has significantly cut the carbon footprint of the construction process. Additionally, it stabilises low-quality clay soil (A6 clay), improving its stability and moisture resistance while minimising the need for material transportation by utilizing native resources. These improvements result in a total cost savings of at least 30% and contribute to the generation of carbon avoidance credits.
“I am incredibly proud of the entire Verde team and our strong partnership with NCAT. This milestone is a significant step forward in our mission to innovate and introduce sustainable solutions to the road construction industry. We look forward to advancing our Net Zero initiatives and continuing to drive positive change in the building materials sector,” said Eric Bava, Chief Operating Officer of Verde.
This achievement aligns with Verde’s broader goal of integrating Net Zero initiatives into the construction industry, a sector responsible for 37% of global carbon emissions. The next phase of the project will involve applying biochar asphalt as the wearing course, which will validate carbon sequestration and enable Verde to generate Carbon Removal Credits, further linking road construction with carbon removal and avoidance.
Dr. Nam Tran, Associate Director of NCAT said, “NCAT is pleased to collaborate with the Verde team to construct and monitor the performance of the innovative test section. The enzyme technology has the potential to significantly reduce embodied carbon and lower costs associated with reduced Portland cement contents. The test section, constructed with Mississippi subgrade and sub-base materials, demonstrates the transformative potential of green technology in road construction.”
NCAT is a world leader in asphalt pavement technology, supported by its long-standing partnerships with National Asphalt Pavement Association (NAPA), state transportation departments, the Federal Highway Administration (FHWA), and industry stakeholders. It is recognised worldwide for excellence in research, training, education, and technology transfer, with a focus on building safe, sustainable, and cost-effective asphalt pavements.
