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Performance of galvanized and stainless steel rebars in concrete under macrocell corrosion conditions

✍ Scribed by V. Saraswathy; Ha-Won Song

Publisher
John Wiley and Sons
Year
2005
Tongue
German
Weight
227 KB
Volume
56
Category
Article
ISSN
0947-5117

No coin nor oath required. For personal study only.

✦ Synopsis

In the recent past, the damage caused by rebar corrosion in concrete structures has been considered as one of the major durability problems affecting the service life of concrete structures. In order to prevent corrosion of steel reinforcement, various types of protective methods have been adopted. One of the protective measures is using galvanized reinforcement in concrete to enhance the service life.

In the present study various types of galvanized rebars namely bare -Cold Twisted Deformed (CTD), bare -Thermo Mechanically Treated (TMT), galvanized -Cold Twisted Deformed, Gal-vanized -Thermo Mechanically Treated, galvanized and chromated -Cold Twisted Deformed, galvanized and chromated -Thermo Mechanically Treated and stainless steel rebars have been evaluated for their corrosion resistance in M30 grade concrete under macro cell corrosion condition over a period of one year. From the studies it has been observed that TMT bars performed better when compared to CTD bars. Among the rebars tested, stainless steel rebar has shown negligible corrosion in chloride contaminated concrete.

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