TMT Bars

Requirement of High Strength Rebars

TMT Bar

Requirement of High Strength Rebars Problems associated with High Strength Rebars Technological developments in production processes of High Strength Rebars
Comparison of different processes for production of High Strength Rebars TMT Bars Manufacturing process TMT bars vs “Quenched & Tempered” bars
Advantages & Applications International Scenario Indian Scenario

Requirement of High Strength Rebars

Reinforced cement concrete (RCC) today has become an integral part of every structure, be it a multi-storeyed building, a tunnel, a flyover, a TV tower, a bridge, a nuclear reactor, an industrial unit or a residential apartment.

With RCC so much coming under use, the engineers are constantly striving to devise ways and means to reduce its cost and bring economy in construction.

Among its constituent materials, RCC has steel as the costliest material accounting for 30 to 40% of the cost of RCC. Therefore, the focus has been more on steel than on any other constituent material.

The need for reduction in the steel used for concrete reinforcement has prompted most countries to switch to reinforcement bars of higher yield strengths of say 500 and 550 MPa (& even higher).

The direct benefits (to customers) of using high reinforcement bars are:

    • Reduced total weight of reinforcement bars leading to reduced cost to the customer
    • Reduced manpower for reinforcement fabrication
    • Lower transportation costs

 

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References:
Latest developments on steel front” by Jagvir Goyal
Thermex Quenching and Tempering Technology” by R.K. Markan, the Chairman and Managing Director of H&K India
Websites of SAIL, Rajuri steel & Evcon

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