Long, bumpy ride to smoother roads nears end for Ottawa's 'Professor of Pavement'

By Stu Mills, CBC News Ottawa, March 7, 2018

One day in 1982, when Abd El Halim was still a graduate student at the University of Waterloo, he stopped to watch a paving crew at work near his house.

Fascinated, El Halim studied the steel cylinder of the asphalt roller as it met the hot, black road surface, leaving a network of fine fissures in its wake.


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