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Elvaloy® RET helps pave the world's highest road

Ladakh region, IndiaWith its surreal "desert-in-the-sky" panoramas, Ladakh in Kashmir is often referred to as "Moonland." It is home of the world's highest-elevation motorable road, following an ancient silk and wool trade route, through Khardungla Pass. Summer temperatures often reach 80ºF, and winters drop to -40ºF or lower, causing excessive expansion and contraction in the 20-mm-thick bitumen. Paving materials containing DuPont™ Elvaloy® RET were used for a test section of this roadway.

Osnar Chemical Pvt. Ltd., of Mumbai, India, chose the RET-modified bitumen for its resistance to thermal cracking and easy workability using hand-tools in the exhaustingly thin air at this high altitude. "If weather interrupts a work crew, the stored mixture can be reheated and used later without worry about the Elvaloy® RET separating from the binder, as the mix is totally homogenous," says Samir Degan, the company's director.

Learn More about Elvaloy® RET Binder Performance Benefits

cracked pavement
How Elvaloy® RET Fights Thermal Cracking
Elvaloy® RET helps create a more resilient pavement, which resists thermal cracking, as shown in cold-weather field tests and proven high-altitude service. » Avoiding thermal cracks
technical research findings
Northern Ontario Study Compares Binders for Thermal Cracking
Polymer modified binder made with Elvaloy® RET survived record-breaking cold weather conditions in this Canadian government research. » Download Tecnhical Report