(i) Better Safety of structures:
Because of higher Strength combined with higher Ductility.
(ii) Easy working at site:
Owing to better Ductility and Bend ability. Pre-welded meshes can be made to eliminate manual binding at site.
Reduces construction and fabrication time.
(iii) Resists fire:
Unlike Tor steel/ CTD Reinforcement bars, TMT bars have high thermal stability. They are the preferred choice when elevated temperatures of 400-6000 C may be encountered.
(iv) Resists corrosion:
The TMT process gives the bar superior strength and anti-corrosive properties. Controlled water-cooling prevents the formation of coarse carbides, which has been cited as the main cause for the corrosive nature of common bar.
Another reason for better corrosion resistance is the absence of surface stresses caused by the cold twisting process.
Due to very high elongation values and consistent properties through out the length of bar, TMT rebars have excellent workability and bend ability.
(vi) Earthquake resistance:
The soft ferrite-pearlite core enables the bar to bear dynamic and seismic loading. TMT bars have high fatigue resistance to Dynamic/ Seismic loads due to its higher ductility quality. This makes them most suitable for use in earthquake prone areas.
TMT bars are most preferred because of their flexible nature.
(viii) Fine welding features:
TMT rebars (having low carbon content) can be used for butt and other weld joints without reduction in strength at the weld joints.
(ix) Bonding strength:
External ribs running across the entire length of the TMT bar give superior bonding strength between the bar and the concrete. Fulfils Bond requirements as per IS: 456/78 and IS: 1786/85.
A high tensile strength and better elongation value gives you great savings, Reduced Transportation Costs.