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You are here: Home / News / ISU studies soybean oil use in asphalt

ISU studies soybean oil use in asphalt

July 25, 2019 By Radio Iowa Contributor

ISU is studying the use of soybean oil for asphalt.

Iowa State University is studying ways to use soybean oil instead of petroleum-based oil as a bonding agent in asphalt for making roads.

Rolland Schnell, a soybean farmer from Newton, says it’s a tremendous opportunity for Iowa growers, who already lead the nation in soybean production.

“If this is commercialized, and it is going to be, about 1.6-billion pounds of petroleum oil is used as a binder product now in asphalt, and that’s a lot of oil,” Schnell says. “There’s no reason to believe that, as this is accepted, a large portion of that could be soybean oil.”

Schnell says the studies are finding soybean oil beats the petroleum-based oil on multiple levels when it’s used to build roads.
“Using the soybean oil, you have a superior product and a cheaper product,” Schnell says. “When I say a superior product, the asphalt that is made with this is much more flexible, it’s much more temperature-tolerant as far as it’s application, and it’s much more environmentally friendly.”

Schnell says using soybean oil in asphalt domestically and internationally would be a huge win, especially in this time of a trade war with China, as the need for more export markets is growing.

(By Gina Cerrentano, KICD, Spencer)

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Filed Under: News Tagged With: Iowa State University, Transportation

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