ah good old clay also known as loon $#!% , pond scum . the back of my shop was clay and would go up , down every spring after the frost left . if it was a long cold winter the frost would lift the driveway 24-30 " .so after removing 48 " deep of it by 60' x 220' and replacing it with sand up until this year it only went up 2 to 4 " then the frost would go, back to the normal level .now after the winter we still have ( 4" of snow yesterday ) the frost is on the way out and the driveway is up about 8" . now I should not complain as in town on some man hole covers the frost went down 8' and froze lots of water pipes .
GLOBAL WARMING MY @$# !!!!