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Home  > Publications  > Blog  > No pearls before swine

Saturday, 22 February 2020

No pearls before swine

Thursday, 28 July 2016 | Posted by: Vanessa Bauersachs, European Coatings Journal

Using pig waste to make asphalt? If it weren’t for the fact that April’s Fools is months away, I would have thought this news a joke. In fact, researchers from the North Carolina A & T State University have successfully used pig manure for the production of asphalt – thereby replacing bitumen containing petroleum.

Cheap and sustainable

To produce asphalt fit for motorways the team extracted oil from pig waste and mixed the extract with stones. According to the researchers the new type is five times as cheap as the traditional petroleum-based asphalt.

The vision of long car rides through smelly streets comes to mind. But no worry necessary: During production those substances responsible for the pungent smell of pigs manure are filtered out. Moreover, the end products can be used as fertilizers. Reducing our dependence on petroleum and reusing waste – definitely a promising project, I am curious to see if the new asphalt will gain acceptance.   

You can read more at: and on the webpage of the Bio-Adhesives Alliance at:

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