Cost Effectiveness of Epoxy-Coated Rebar
Cost Effectiveness of Epoxy-Coated Rebar
(OP)
Purchase price of epoxy coated rebar is only about 10¢ per pound more than black rebar. Why is it not used more?
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Cost Effectiveness of Epoxy-Coated Rebar
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RE: Cost Effectiveness of Epoxy-Coated Rebar
http://www.crsi.org/corrosion/handling.html
Double coating such as Zbar might be a better option.
http://www.zbarusa.com/index.html
RE: Cost Effectiveness of Epoxy-Coated Rebar
i'd rather just have some corrision inhibitor in the concrete and be done with it.
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
He was a pretty smart guy and has done lots of research in that area. If the epoxy coating gets any kind of a ding, not only will it not help, it actually drives the corrosion at a more rapid rate.
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
Dik
RE: Cost Effectiveness of Epoxy-Coated Rebar
RE: Cost Effectiveness of Epoxy-Coated Rebar
No doubt there is a much improved performance in the use of green bars from when we used black steel only in bridge decks. But then too our overall construction practice has also improved. Concrete cover is more strictly held to and has a tremendous effect on protecting rebar. We're also using sealers and other membranes to protect concrete especially in splash zones where deicing chemicals are inadvertently sprayed onto substructures from the snowplowing etc.
One application that holds a great deal of promise is non-ferrous reinforcing such as Glass Fiber Reinforced Polymers. GFRP is relatively cheap compared to Carbon FRP and will not rust in any situation. At present a handful of states have experimental applications and more research work may be necessary to assure owners that it will work but it's a start.
Regards,
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