Precast Consulting Service
Finance, Marketing &
Fiberglass Rebar on stainless
To combat corrosion, we used fiberglass or
stainless rebar in about half our installations.
Fiberglass rebar [GFRP] is more economical
than stainless steel
However, fiberglass bar does not have an ASTM
We could sell our QC methods and those of
the manufacturer. The manufacturer would further certify the tensile
strength through destructive testing. But the test is not ASTM.
That was a problem for some specifiers.
The other half of our installations used epoxy
coated or galvanized bar.
Galvanized bar is subject to rapid depletion
at elevated temperatures and high PH. Not a good choice.
Epoxy coated bar is subject to pocket corrosion
at any nick. Nicks are hard to avoid.
In all cases we used an impermeable mix design.
Here is a nice article on this subject area
in Composite Technology. click
for the Precast Industry