Quote:
Originally Posted by JamieGeek
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Left as an exercise for the reader: Calculate your RV's PSI value (hint: weight/contact patch area).
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That's not the way a concrete driveway will fail, so not really relevant.
For what it's worth, my driveway at home is all cracked and needs replacement. And that's without placing a 20,000-pound RV on it -- or any other heavy truck. There's a lot that goes into whether the concrete will crack or not.
My guess to your question: Weight/contact patch area is in 60 ~ 120 PSI range, about same as tire air pressure.