It is estimated that that steel consumption in India will rapidly rise in the next 10-15 years to reach
a level of 140-150 million tonnes per year by 2020 of which 55% (77mT) will be long products. Rebar demand will see more than
a five-fold jump to around 35-40 mT/year to allow for development of the vast hinterland. The best of quenching and tempering
technologies are today available in the country and Q & T rebars have already made a dent in the market. By 2020 over
90% of the rebars used will be Q&T rebars. It is imperative that the B. I. S. put into place a relevant Code for rebars
at the earliest so that the country utilises this technology to its full potential – savings in steel consumption and
safety. The new Code could be on lines of the one adopted by New Zealand. It should make it mandatory
for all rebars to have marks that make it easy for the Grade and name of producer to be identified. This will clean up the
rebar sector and be beneficial to the entire construction industry.
References:
1. “TMT” Bars – The Best & the Worst of Times by R. K. Markan, 2002.
2. Reinforcement – Global & Indian Scenario by
F. Tamm & R. K. Markan, 2003
3. Thermo-processing for High Strength rebars by R.
K. Markan & F. Tamm, 2003
4. Properties of Thermo-processed Thermex HSD Rebars by
R. K. Markan & R. S. Chavan , 2003
5. India: Steel 2020 & Relevance of Thermex Technology by
R. K. Markan, 2004
6. Relevance of Quenching & Tempering Technology to India, by R. K. Markan, 2004
7. “TMT” Rebars & What Needs to be Done by
R. K. Markan, 2004
8. The A, B, & C of ‘TMT’ Bars, Master
Builder, 2004
9. The Australian/New Zealand Standard AS/NZS 4671-2001 “Reinforcing
Steel Materials”
10. New Reinforcing Materials by K. Towl, Pacific Steel
11. L, N & E Grade 500 Reinforcing Steel by D. Bull & C. Allington, University of Canterbury
12. Welding Newly Developed, High Strength, Seismic Grade Reinforcing Bars by W. Scholz & B. Roberts
13. Sub-Standard Rebars in the Indian Market by Dr. C. S. Vishwanath and Others,
2004
