On Sun, 17 May 2009 20:33:40 -0400, "
wrote:

Big problem in Florida - lots of buildings with balconies have had to
rework the concrete. Rebar rusted, expanded and cracked the concrete.

Haven't they been using rebar for 50 or 100 years? Did something
change so that it rusts now?


Some problems with the issue in our condo, but nothing structural.
Building down the street, about 12 storey, had a great deal of work done
for the problem.