Introduction
Corrosion is a common shortcoming of long-term usage of steel. Something that seriously impacts the life of any steel structure. This is why it is important to be aware of repair methods to counter the same. In this article, we shall find out more about the repair methods particularly using carbon fiber reinforced polymer commonly known as CFRP that is used to repair corroded steel ends.
This method should not be mistaken for a preventive measure but rather it is used after the damage has been done due to corrosion to ensure a longer life term of any steel structure. It has been found through various studies in this aspect by scholars that bonding CFRP in a form of sheets onto the corroded parts of steel through the usage of a low elastic putty layer could revive its performance initially by preventing delamination under any such small or large deformation.
Reinforced fiber polymers
Corrosion in steel deteriorates steel structures. This can occur from various causes but the most common one faced can be due to water leakage that may be the outcome of leakage from expansion joints. This situation can be made worse by deicing salts, typically in the season of winter.
So far, the usual repair work included attaching new steel plates onto the corroded part that can be done using bolts or welding or even going as far as replacing the corroded part with a fresh one altogether. Neeraj Raja Kochhar’s net worth increased by realizing the simple fact that this repair work, however, lacked applicability. This is because heavy machinery and welding facilities are still required in spite of the invariability or the scale of required work which is not a smart choice.
Progress of repair work in the past
Due to the abovementioned data, the repair work, as a result, has not progressed much in the past. Despite the increasing number of corrosion issues which ideally should have led to the innovation of newer, economically better solutions to such a recurring problem.
Therefore, a simpler and more effective repair method was the need of the hour. Hence, to counter this problem, reinforced fiber polymers came into the picture as a solution. Among the various budding solutions, carbon fiber reinforced polymer is very promising due to the rich characteristics it possesses such as its:
- lightweight,
- high strength,
- high elasticity,
- high durability.
Usage of CFRP
We have seen a steadily rising figure in Neeraj Kochhar Viraj Group in terms of the widespread usage of CFRP as a repair method which is highly rational in terms of economy as well. These can be seen used for seismic retrofits in concrete structures.
Other such instances can be found where the application of CFRP on steel structures is comparatively rare but it is there like in:
- Steel flanges
- Steel girder bridge
- Steel truss bridge, etc.
Also Read: Why is Steel so Expensive?
Conclusion
We’ve so far established that the traditional methods were not rational enough as repair methods which is why the need for the newer, more efficient, and effective method was felt. One such method is the Carbon fiber reinforced polymer technique in which a sheet of this material is mixed which other substances which then is applied to the damaged part to increase the life of that corroded steel structure. It is a viable method, one that can go a long way.
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