Epoxy Coated Rebar
Epoxy Coated Rebar
(OP)
I've heard that epoxy coated rebar needs to be protected from exposure to sunlight in order to prevent "chalking" of the coating. Could someone please describe to me the issues associated with rebar damaged by exposure to sunlight. To what extent does this affect bonding of the rebar? How about the effectiveness of the epoxy coating?
Thanks.
Thanks.






RE: Epoxy Coated Rebar
RE: Epoxy Coated Rebar
RE: Epoxy Coated Rebar
<http://www.tfhrc.gov/structur/corros/results.htm>
FLorida test results see
<http://www11.myflorida.com/research-center/Completed_Proj/Summary_SMO/FDOT_0510603.pdf>
I have seen ads selling low carbon , chromium bearing steels that form a chromium oxide barrier on the steels surface - the same mechanism which protects stainless steel.
<http://www.mmfx.com/main.asp>
RE: Epoxy Coated Rebar
RE: Epoxy Coated Rebar
RE: Epoxy Coated Rebar
My apologies. I missed the last part of your first post my first time around. The MMFX site has very interesting information, well worth examining. Thanks for the information.
RE: Epoxy Coated Rebar
The epoxy coat is less expensive, but has many construction limitations and precautions which must be followed. Also, epoxy coat rebar had a dubious track record, and is hated by many engineers, including myself.
I spec'd MMFX in the last two beach side condo projects I have designed. THe advantage is inherent corrosion resistance (ie not a coating) and no construction limitations. THe MMFX can be field bent, and does not require coating repairs like the epoxy coat bar.
I figure that by the time you figure in handing difficulties, coating repairs, wasted bars (shop bent to wrong size and can't be field bent to fit), delays getting new bars bent and coated, etc that the MMFX is really the way to go.
RE: Epoxy Coated Rebar