Part-I of this blog explained the current reinforcement steel trend in India, the TMT steel reinforced bar, the different grades and which grades are preferred. It also explained the most important factor of TMT steel bar which is Ductility. How is it compromised for higher strength. In this blog, the shift towards value-added reinforced steel is explained
Value Added Reinforced Steels
The reinforced steel industry in India has been adopting towards value-added products that are used in many upcoming building projects. The increased awareness of environmental disasters namely earthquakes, floods, rust etc and the advantages they offer in terms of longer structural life has prompted manufacturers to introduce these variations of reinforced steel bars. Introduction of newer reinforced steel variations is done in order to keep up with the growing competition among similar rivals. Some of these variations are:
Corrosion Resistant Rebar
The primary purpose of these type of TMT reinforced steel bars was the prevention of formation of corrosion which in turn affects the structural integrity of the rebar. These reinforced bars have alloying elements like chromium in small quantities, which provides corrosion resistant properties to the reinforced steel bar. The benefits of these steel bars are increased life of the structure as against the overall lifecycle cost and easier handling.
Earthquake Resistant Rebar
Earthquake is one of the frequent disasters in India. To handle such seismic activities, it is essential to use Earthquake Resistant reinforced bar as reinforcement to the building structure. The usage of these reinforced steels is increasing at a rapid pace in the construction industry due to the increase in awareness of the need for earthquake resistant structures. By using earthquake resistant reinforced steel bars, the earthquake impacts can be minimized to an extent.
Epoxy Coated Rebar
Fusion bonded epoxy (FBE) coated reinforced steel typically involves the application of an automated Epoxy coating on the surface. This process has benefits in terms of longer structural life due to corrosion protection. The restraining factors for this technology are the higher cost associated with the coating process. Also, the lack of skilful handling to avoid the peeling of the coating during the cutting, bending process is another factor.
The demand for reinforced steel bars in India will increase over the coming years. The Ministry of Steel estimates that by 2020, the steel capacity in the country would expand from the current capacity of about 70 million MT to about 200 million MT. The need for newer, stronger and safe construction of infrastructure, the steel industrial sector would require reinforced steel, thus the demands will be high. Due to this revelation, the steel companies in India are expanding their capacity for the production of reinforced TMT steel bars.