"Stanley Oxford" wrote in message
...
For the life of me, I can't figure out how water is getting through my
concrete drive.

My drive is heaving up, since the winter freeze. It appears frozen water
is getting under my drive.

How in the heck is 5" of concrete letting water through?



Frost heaves can raise up highways that have a better base than your
driveway. One you get a fissure of any sort water can get in, freeze, make
a larger fissure to let in even more water, etc. Water will get in from the
sides also.