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The Conversation USA

What are roads made of? A pavement materials engineer explains the science behind the asphalt you drive on

  • Written by Mansour Solaimanian, Research Professor, Larson Pennsylvania Transportation Institute, Penn State
imagePavers push the asphalt down during road construction. Pramote Polyamate/Moment via Getty Images

While on the road, you’re probably thinking more about your destination than the pavement you’re driving over. But building roads requires a host of engineering feats, from developing the right pavement materials to using heavy equipment to...

Read more: What are roads made of? A pavement materials engineer explains the science behind the asphalt you...

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