Doug Miller wrote:
In article , Limp Arbor wrote:
On May 17, 6:53=A0pm, JIMMIE wrote:
My friend is building some new concrete steps to his back porch. He
has some old chevy blocks , brake drums and general automotive iron he
wants to get rid of . If these items are clean of fluids is there any
reason we couldnt use them as fill in the steps.

Jimmie
I would not use them because as they corrode they will at first get
bigger (Think about the flakes that come off your drums & rotors).
Then as they corrode further you could be left with a substantial
void.

How are they going to get bigger while they're encased in concrete?

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

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.

On May 17, 8:43*pm, mm wrote:
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?

No, you've been sleeping or in a coma. It's always rusted.

R

mm wrote:
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?


Perhaps the problem in Florida is with buildings not kept adequately
painted, so there is more salt intrusion. Don't know the reasons.

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.

New Obama law, maybe. The Rusting of Rebar Act of 2009.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"mm" wrote in message
...
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?