Michigan Tech Researcher Using Nanoclays to Build Better Asphalt Published May 6, 2012 By News Long before the age of freeways and parking lots, Babylonians used a naturally occurring asphalt to reinforce their roads. You can still see patches of the old pavement in the ancient city, even though it was installed in about 600 B.C. MORE ← Previous Post Drewyor appointed to Board of Professional Surveyors Next Post → Researchers Attend National Transportation Workforce Summit