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Is TMT safe <edited>

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Ramachandran. K.S
SEFI Member
SEFI Member

Joined: 21 Nov 2008
Posts: 4

PostPosted: Wed Aug 15, 2018 8:30 am    Post subject: Is TMT safe <edited> Reply with quote

Dear Sir,

Thanks for the valuable inputs which is quite useful.

Best Regards,


From: Dr. N. Subramanian <forum@sefindia.org>
Sent: Wed, 15 Aug 2018 12:24:25
To: general@sefindia.org
Subject: [SEFI] Re: Is TMT safe <edited>
     Dear Er Ramachandran

Please look into the catalog/brochure published by TATA steel regarding their manufacturing process. Or refer pp. 25 of my RC Design book. Due to this they have tempered Martensite outer layer which resist corrosion. Note that TMT-CRS bars have better corrosion resistance that of ordinary TMT bars.

Fusion bonded epoxy coated bars (IS 13920) have been used since 1970s and their performance have been found to be satisfactory (Smith and Virmany, 1996)
Smith J.L., and Y.P. Virmany, 1996, Performance of Epoxy coated Rebars in Bridge Decks, Report No. FHWA-RD-96-092

Also see: http://www.virginiadot.org/vtrc/main/online_reports/pdf/00-r16%20.pdf, which provides opposite view. Hence even if you provide a good quality rebar, you need to provide an impervious and thick concrete cover and also cure the concrete surface properly!

Best wishs
      Ramachandran. K.S wrote:                Dear Sri. Aneesh,

Please clarify how TMT bars have the safety requirements built into it. Is there any special material properties that provide safety requirements or it is because of more ductility property?

Thanks & Regards,


Structural Engineer

From: Aneesh_Surjith
Sent: Fri, 10 Aug 2018 16:50:31
To: general@sefindia.org
Subject: [SEFI] Re: Is TMT safe
           There is no structure that can be said to be able to withstand the force of Nature, the construction industry have undergone major changes to ensure much safer buildings and one such is the reinforcement used for construction. Nowadays TMT is used for RCC, and it have the necessary safety requirements to withstand disasters to avoid major losses. TMT bars such as Fe 415, have been designed to provide the idea of safer homes.That is the best a man can do to withstad natural forces

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