On Apr 18, 8:16*am, Chris J Dixon wrote:
aquachimp wrote:
As for concrete gravel boards;;; You'd be better trying it with kerb
stones; concrete gravel boards tend to first bulge (and they break
easily) and eventually sort of have that ruptured look, with their
rusting internal mesh for all to see.

This shot doesn't quite show the full nature of the upheaval, but
here is one panel that is giving up the fight. The pavement has
recently been resurfaced, but is already beginning to bulge
again.




Even a kerb stone would be undone in that situation I think. What I
thought the OP referred to was gravel boards all the way up.