How are runways different form highways that they never seem to have potholes? Is it how they’re constructed? Or how they’re maintained?
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I don’t have any specialized knowledge, but I saw some runway construction at an airport once and the concrete appeared to be several feet thick instead of the several inches thick concrete used in highways. It’s been quite a few years, but I remember the concrete being roughly as thick as a man is tall.
Hopefully a civil engineer will chime in and confirm or deny this.
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