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inchak at tatasteel.com Guest
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Posted: Mon Jul 04, 2005 7:19 am Post subject: response No 20 red oxide prevents the corrosion of steel ba |
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Dear Mr. Mukesh Upadhyay
This is a very valid doubt.
Whatever be the means to achieve improved corrosion resistance to rebars embedded in concrete it boils down to formation of an adherent continuous protective flim on the surface of the rebar. This is the underlying principle of CRS rebars, galvanized rebars, epoxy coated rebars, stainless steel rebars etc.
Presence of red oxide in cement does not lead to formation of any such coating on the surface of rebar. Therefore, there should be no significant difference in corrosion rate of any particular type of rebar it it is embedded in ordinary cement or in a cement which contents some amount of red oxide.
This can be easily tested in any laboratory and a conclusive evidence can be arrived at. A competent member of this forum may like to take this up.
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