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Kraton Asphalt Performance Additive Driving Development of Sustainable Roadways

Around the world, investment in transportation infrastructure continues to grow, enhancing the need for sustainable, environmentally sound construction processes and materials.

SYLVAROAD RP1000 Performance Additive, produced by Kraton, a global copolymer producer, helps make asphalt recycling more sustainable by enabling high-performance reuse of recycled asphalt pavement. The additive also improves resource efficiency by reducing the need for virgin aggregates and liquid asphalt, while reducing the overall environmental impact of road construction

By helping to enable a significant increase in the amount of reclaimed materials that can be used in an asphalt mix, use of the high-performance additive can lead to more sustainable and resource-efficient road construction. The engineered use of this high-performance additive can also help reduce pavement thickness, saving raw materials and construction time.

Derived from crude tall oil (CTO), a bio-based raw material that is a byproduct of the paper manufacturing industry, SYLVAROAD RP1000 High Performance Additive makes effective use of existing resources to help make asphalt road construction more economical, durable and sustainable.

With less than a kilogram per ton of asphalt mix, typically containing up to 50 percent reclaimed asphalt pavement, the SYLVAROAD RP1000 additive can restore aged material to its original properties and minimize cracking and rutting on the road. The CTO additive also enhances asphalt mix performance so that high recycled content can be used in surface-layer paving mixes, not just sub-surface layers.

Kraton’s bio-based products are derived from biomass, and many of its products are certified under the European Bio-based certification scheme; the SYLVAROAD™ RP1000 additive is certified 90 percent bio-based. After five years of stakeholder collaboration, various European road authorities began using SYLVAROAD™ RP1000 additive on commercial road projects. Benefits reported by road authorities include reduced stockpiles of reclaimed asphalt pavement and optimized use of recovered products.

About the Author
American Chemistry Council

The American Chemistry Council (ACC) represents the leading companies engaged in the multibillion-dollar business of chemistry. ACC members apply the science of chemistry to make innovative products, technologies and services that make people's lives better, healthier and safer. ACC is committed to improved environmental, health, safety and security performance through Responsible Care®; common sense advocacy addressing major public policy issues; and health and environmental research and product testing. ACC members and chemistry companies are among the largest investors in research and development, and are advancing products, processes and technologies to address climate change, enhance air and water quality, and progress toward a more sustainable, circular economy.

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