To understand how to make a building or structure resistant to corrosion, you have to first understand how corrosion happens and its impact on the structure.

How Do RCC Structures Corrode?

In a concrete building, the corrosion hits the steel parts of the structure. As we know, rust occurs when iron or an iron alloy (such as steel) is exposed to moisture or oxygen for a sustained duration.

Steel starts rusting the moment it comes in contact with moisture and air. The speed and extent of corrosion depend on how much of the steel part is exposed to moisture and air, and how much moisture and air is present in the environment.

What is the impact of corrosion on the structure?

The rust will first affect the outer surface of the steel before burrowing into the metal bar. With time and continued exposure, the steel will become virtually useless – in case of a building, this means that it loses its strength and weakens the structure. Steel corrosion can also cause cracking or spalling of the concrete, which again reduces the overall life of the structure and can be extremely costly to fix.

Using corrosion-resistant TMT bars to extend the life of the structure

Apart from using construction best practices and ensuring that the steel parts of your building don’t become exposed to salt, moisture, or air, one sure-shot way of avoiding corrosion is to use TMT steel bars.

TMT or Thermo Mechanically Treated bars have built-in rust and corrosion-resistant properties that come into existence during the manufacturing process. The CRS TMT process employed in Moira Sariya adds copper, nickel, and chrome to the raw material making Moira TMT bars highly corrosion resistance as opposed to ordinary sponge iron based bars.

Why is it important to use corrosion-resistant TMT steel bars in Central India? 

While buildings in tropical and coastal regions certainly need steel bars with corrosion resistance properties, it is also vital to employ similar rust-resistant materials in Central India. The rate of decay might be slightly slower, but it is equally damaging.

Apart from buildings, underground structures, or structures that come in contact with highly corrosive acidic or saline substances such as sewage drains or sewage treatment plants should only be constructed using TMT steel bars to ensure longevity.

Corrosion also leads to structural failure during earthquakes, and as some parts of Central India lies in seismic zone III, it is advisable to ensure your building/structure has the twin benefits of earthquake and corrosion resistance.

If you are building in Central India, then a quick and affordable way to access TMT bars is through Moira Sariya. We are a 3-decade-old steel manufacturer based in Indore, and our TMT steel bars are made with the German CRS technology duly licenced by HSE Germany. Do get in touch with our dealers to know more or you can just visit our plant to see the manufacturing process and get all the information first hand.