Purdue University photo/Erin Easterling
Purdue University photo/Erin Easterling

Traffic gets held up waiting for new concrete pavement to be ready, but reopening roads too soon could also cause the concrete to crack. Sensors developed by Purdue University engineers have been embedded into Indiana highways to more precisely determine when concrete pavement is ready to handle heavy truck traffic, as part of a collaboration with the Indiana Department of Transportation. The data will provide a new recommendation for when roads should reopen following a construction project. This is not typical maturity testing that relies on temperature measurements but rather a new system that measures strength directly.

“Fast-paced construction schedules can often expose concrete to traffic too early, causing premature failure. Our data will help us to recommend the best time for traffic to open and benefit taxpayers,” said Professor Luna Lu.

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