What makes them resistant to corrosion - iSTEEL
                     What makes them 
resistant to corrosion 
- iSTEEL
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Introduction
Corrosion is the enemy of structures. As the name suggests the TMT bars that can 
evade corrosion are called so. The corrosion resistant TMT bars are made up of a 
layer of epoxy coating to make them resistant to corrosion. The epoxy coating in the 
bars acts as a protective layer to anything that may cause the bars to erode. Usually, 
they bring air, water and some kinds of salts. When the building surfaces come in 
contact with the moisture or humidity it starts to corrode the surface then slowly 
reaches the TMT bars if these bars are made up of corrosion resistant TMT bars, the 
steels hold everything together without giving in. In the case of normal 
reinforcement, the bar corrodes and building begins to splay.
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Manufacture of Corrosion resistant TMT bars
Corrosion resistant TMT bars are the type of bars specifically used in 
areas with higher moisture and humidity in the atmosphere. Manufacture 
of the corrosion resistant TMT bars differs from the normal TMT bars, in 
the former, there is an additional epoxy coating which makes them 
resistant to corrosion. Due to this the corrosion resistant TMT bars are 
highly sorted out and at the same time, they are environment friendly. 
Due to the differences in the manufacturing process, the corrosion 
resistant has an extra life and is more flexible than normal steel bars.
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Advantages of corrosion resistant TMT bars 
The corrosion resistant TMT bars have a number of advantages over 
normal steel bars and an exceptional reason being that they withstand 
corrosion and ensure that the structure lasts long. The corrosion 
resistant TMT bars are used in underwater construction, bridges, and 
sewer lines building. So that they do not corrode or show signs of 
damage. Where the normal steel bars are not recommended in areas 
with damp temperature and weather conditions.
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Another reason is that some of the constructors choose this type of 
steel even in non-humid conditions as a fail-safe to make sure the 
structure or housing lasts a long time. In the case of normal steel bars, 
we cannot have that, because as time progresses the steel comes in 
contact with the atmospheric elements and thus causes a chemical 
reaction and thus corroding the steel in the process, which weakens 
the building and initiates the formation of cracks on the surface. So as 
a result, the structures with epoxy- coated steels last longer.
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The corrosion resistant epoxy coated TMT bars are 
also low maintenance and offer better flexibility to 
the bars. This decreases the labor costs for the 
maintenance of the steel bars compared to normal 
black steel. That’s a double win there.
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And of the major concerns for the 
construction companies and also the 
TMT bar Manufacturers is that the end 
results are eco-friendly and these corrosion 
resistant TMT bars are on the green side.
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The little extra money in these bars pays 
well in times of a natural disaster and the 
structure only has minimal damage then 
opting for a normal bar and the building 
enduring major damage.
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Conclusion
These are the advantages of corrosion resistant TMT bars over other TMT bars, this also 
the reason why most of the engineers and builders prefer them even if it is a little pricey 
and also why the TMT bar Manufacturers also build super strong TMT bars. We want 
everything to last long and we are not interested in investing anything that is short-lived. 
So, the TMT bar Manufacturers are always looking for a way to enhance the process.
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Thank you
Source; https://isteel.in/what-makes-them-resistant-to-corrosion/