Growing traffic and harsh climates demand solutions for safer, more sustainable infrastructure. Kraton innovations for bitumen modification enable the development of durable, cost-effective roads by reducing time and expenses related to maintenance, construction delays and traffic problems.
As a pioneer in bitumen modification, our products and global supply network allow for the delivery of superior performance, processability and reliable supply. Asphalt mixes with binders modified by our polymers and chemicals are also recyclable, minimizing environmental impact. Kraton polymer modification options are specifically designed for paving applications. Our styrene-butadiene-styrene (SBS) polymers address rutting and cracking issues and are ideal for hot and cold climates, creating longer lasting, more efficient roads.
Improving Pavement Value and Performance
with Highly Modified Asphalt
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These two categories encompass polymer loading levels of 2-6 wt.% of SBS in bitumen. As the modification level increases, the bitumen becomes increasingly better at resisting high-temperature deformation and intermediate temperature cracking.
Highly Modified Asphalt (HiMA™) is designed to enhance durability and processability in asphalt pavement applications. The technology has more than twice the polymer loading of ordinary asphalt, which makes the asphalt act like asphalt-modified rubber instead of rubber-modified asphalt.
Emulsions are developed using HiMA™, conventional or premium PMB, and adding water plus emulsifier. SBS is blended into the base asphalt before emulsification. As opposed to modification with water-based, latex polymer dispersions.
SYLVAROAD™ RP1000 Performance Additive enables high-end reuse of recycled asphalt. The additive improves resource efficiency by reducing the need for new aggregates and bitumen, and significantly decreasing environmental impact produced by road construction.
Road markings are a critical component of traffic safety and are a key factor in helping you arrive safely to your destination. Kraton products enable formulators to develop thermoplastic road markings with long lasting, high visibility performance.
Rutting caused by studded tire wear is a serious problem in the American Pacific Northwest, costing states like Alaska millions of dollars annually in damage to both asphalt and concrete roads. See how Kraton HIMA™ technology helped this problem.
In 2015, GDDKiA Olsztyn signed a contract with Budimex for a bypass and expressway around the city of Ostróda. The project consisted of several bridges, including an extra dosed bridge. The construction required the highest quality, sustainable, and rut-resistant bridge deck pavement.
Selecting materials for asphalt pavements primarily depends on forecasted load and climatic conditions. Kraton’s broad and diversified portfolio of performance polymers offers unique solutions to any type of paving application.
The process of combining polymers with bitumen depends on multiple factors including bitumen chemistry, polymer type/content, blending temperature or intended material application. Getting this step done correctly is critical for long-term pavement performance.