Recycled tire rubber can replace SBS as asphalt modifier

ERJ staff report (BC)

Chevy Chase, Maryland – A white paper issued by the Rubberized Asphalt Foundation (RAF) concludes that recycled tire rubber (RTR) binders can be used in place of binders modified with polymer such as styrene butadiene styrene (SBS) and achieve the same performance in asphalt.

“Polymer modified binders such as Superpave PG 76-22 have been used extensively on high volume highways to improve rutting and cracking performance,” said George Way, chairman of RAF. “Given the current economics and higher costs for materials, highway agencies…

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