rconner and Horaz thanks for your input. The UNH website provided seems to be a reasonable assumption for the 65%. I had seen another website that had a similar equation, although it required 65% of the required volume be stored beneath the frost line. That seems excessive. But for the UNH...
Does anyone have any good advice or experience with the effect of frost depth on porous asphalt. I'm designing a porous asphalt parking lot and everything I read is conflicting. Some literature says freezing / heaving of soils is not really an issue, others say a certain percentage of the...