Construction of a house requires perfect planning and the sufficient strength to withstand loads of the structure and the certain natural disasters. In order to deliver such strength, the TMT steel reinforced bars are primarily used. Thermo Mechanically Treated (TMT) steel reinforced bars are known for their absolute strength and ductility. TMT is actually an innovated procedure performed on the hot rolled steel bars, which results in a strong outer martensite layer that deals the tensile strength and a soft ferrite-pearlite inner core which deals with the ductility factor. TMT reinforced steel bars are known for its Bendability.
Continuing from the previous blog, we will be taking a close look at how TMT bars changed Indian construction sector. One of the huge factors which not many discuss is that India is itself a source of cheap and high-quality TMT bars. The steel industry has always one of the successful heavy engineering sectors in India. This meant that India always had a steady supply of TMT bars no matter the situation in the markets.
India is one of the fastest growing economies, this means that construction sites are very common in India. From small-scale structures to massive infrastructure projects, India has rapidly increased its rate of urbanization from 11% in the late 1940s to 31% in 2018. This push towards to urbanization has been helped by many different factors, the government’s willingness to invest in infrastructure has been one of the important factors in this push. The real estate and the construction also helped this vision by actively taking part in this urbanization plan.
The TMT in TMT Bars stand for Thermo-Mechanically Treated, it is a process of rapidly cooling down bars in the molten state. This cooling down process is either done spraying water at regular intervals. This regular interval will further define the characteristics of the bars. This interval of quenching of bars will give rise to different grades of TMT bars in fact. The goal here is to have a solid and hard outer surface with a pliable inner core. This outer shell is coated with a protective film, making them resistant to corrosion and rust, making them apt for constructing sensitive structures such as high rise residential buildings and bridges in humid areas. TMT bars and different Steel Grades.
Almost every modern structure made anywhere in the world nowadays contain TMT bars, they are right up there with concrete and bricks. Beyond a raw material, TMT bars can be used make beams. slabs, grids, columns and more. This makes TMT bars even more valuable. Even when TMT bars are bent to make secondary microstructures they do not lose their corrosion and anti-rust properties.
Before getting to know TMT bars in detail, lets just go through why TMT bars are better than iron rods by default. TMT bars have been accepted by civil engineers, contractors and even by governments. Below are some of the advantages of TMT bars over iron rods.