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Bio-Inspired Additive Slows Icing

Wednesday, November 5, 2014

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Inspired by the ability of certain animals to withstand cold and prevent ice from forming in their bodies, AkzoNobel has introduced a fully biodegradable additive for road salt designed to slow freezing.

Ecosel AsphaltProtection "works by slowing the freezing process, resulting in soft, slushy ice, rather than hard, abrasive ice," said the coatings and specialty chemical company, which rolled out the product in Italy and the Netherlands.
 

Photos: AkzoNobel

Ecosel AsphaltProtection is designed to prevent water trapped in asphalt from turning into ice.

"Adding Ecosel AsphaltProtection to normal winter road salt can reduce frost damage by around 50 percent," said Werner Fuhrmann, who heads the company's Specialty Chemicals business.

The additive works by preventing the water trapped inside the asphalt pores from turning into hard ice, the manufacturer said. That encourages the formation of slushy ice, which is mechanically weaker than the asphalt and thus reduces the risk of damage.

Ecosel Testing

AkzoNobel says Ecosel AsphaltProtection has undergone extensive laboratory and field testing.

Typically, water trapped inside asphalt expands by about 9 percent when it freezes, breaking up the road itself. Passing traffic then further accelerates the damage.

AkzoNobel says use of Ecosel can extend the service life of roads and reduce the time and cost of maintenance and repair. The company says the product has undergone extensive testing in the lab and in small- and large-scale field tests.

More information: www.akzonobel.com.

 

   

Tagged categories: AkzoNobel; Asphalt; Coating Materials; Europe; Maintenance programs; Rehabilitation/Repair; Roads/Highways

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