TIPS ON HOW TO PREVENT TMT STEEL FROM CORROSION | AV STEEL & SUPPLY

The Pulpit Rock
Dec 19, 2019 Posted by Admin

What is Corrosion of Steel?
The unchangeable deterioration of steel due to various environmental factors such as acid, moisture etc. is called as corrosion. Corrosion causes destruction of steel due to chemical reactions between environmental factors and steel or TMT steel. Corrosion includes an electrolysis for which the metallic surface releases electrons into an electrolyte. Thus, it becomes important that you should know How to Select Top and Best Quality TMT Bars for Construction of a House.

TIPS TO PREVENT CORROSION IN TMT BARS
Corrosion cannot be and should not be taken lightly. The entire building structure’s strength depends upon the TMT Bars or TMT Rebar and RCC. Because of corrosion, steel loses its strength and other properties of steel are also affected adversely, thus, affecting the whole building. Preventive measures that should be taken to avoid corrosion of steel TMT Bar. 

1. Avoid heavy reinforcement at the intersection of beams and columns.
2. Try to keep the steel in a distant zone from other construction material such as bricks, wood etc.
3. Keep the Steel Bars in dry place so that it does not get exposed to rain, snow, salt elements etc.
4. It is highly recommended to clean the TMT bars to clean with wire-brush before placing:

Electroplating – Cover the surface of TMT Rebar with a thin layer of Nickeletallic plating.
Mechanical Plating – In Steel bar surface, zinc or cadmium can be applied to prevent corrosion.
Steel TMT Rebar can be dipped into molten zinc and the process is known as Hot Dipping.

5. Choosing the best quality TMT Rebar that does not have Sulphur & Phosphorus in high ratio.
6. Using the correct ratio of water-cement is essential.

Anti-Corrosion Treatment
It is essential to run the alkaline solution in TMT Rebar for the areas that have high moisture content in air like coastal areas. Certain number of steps needs to be taken for Anti-Corrosion Treatment.

Step 1 
Reinforced bars are submerged in de-rusting solution for almost half an hour, until the rust is removed and bright surface of the bar is seen.

De-rusting solution is prepared by mixing:

1. 50 liter of hydrochloric acid.
2. 50 liter of Water.
3. 5 liter of inhibitor.

After this, the TMT bars should be taken out of the solution and cleaned using a wet cloth.

Step 2 
The bars are again dipped into the Alkaline Solution. Alkaline solution is prepared by:

1. 1 kg of Alkaline Powder.
2. 400 liter of Water.

The bars should be kept in the solution for 5 minutes and then to taken out and cleaned properly. 

Step 3 
After the Alkaline Treatment, Phosphate Jelly needs to be applied with the help of a fiber brush. The jelly will take around an hour to react with the bar and after that the bars can be cleaned properly.

Step 4 
In next step Corrosion Inhibitor Solution to be applied to the bars with the help of a fiber brush/dipping.
Corrosion Inhibitor Solution is made with:

1. 500 CC of inhibitor.
2. 1 kg of Ordinary Portland Cement.

This semi-liquid mixture is applied to the surface of the rod with the help of fiber brush. The mixture should be applied on the same day it is prepared and should be allowed to dry for a day.

Step 5 
Finally the Corrosion Sealing Solution needs to be applied to the rods surface. It approximately takes about 4-5 hours to dry on air completely. Once it is dried completely it needs to be repeated once again.

High Quality Corrosion Resistant TMT Rebar
Globally Corrosion resistant TMT rebar are high in demand across varied industries. Steel has the full capability to meet the future challenges. If you are a TMT Bar supplier in Jaipur, Rajasthan and Looking for Best Quality TMT Bars and Rebar, then approach AV Steel because it is the authorized supplier of best Birla TMT Bars in the State of Rajasthan. This is because of 3 major elements:

1. Improved strength
2. Improved Ductility
3. Anti Corrosion Properties

High Quality Corrosion Resistant (CRS) TMT Rebar are evaluated and tested with various and rigorous corrosion media. These tests include:

1. Alternate Immersion Test
2. Salt Spray Test
3. Sulphur Dioxide Test
4. Potentio Dynamic Test

CONCLUSION
The idea was to make you realize that how important it is to take care of the corrosion from TMT Steel Bars. It can be fatal if corrosion in TMT Bar you treat lightly. Therefore, while constructing only choose the CRS/Corrosion Resistant TMT Rebar only. Also, there are Certain Points to be Kept in Mind While Purchasing TMT Bars and certain Mistakes to be Avoided While selecting the Steel for your House.

For any query related to Birla TMT Bars in Rajasthan, you can contact AV Steel.


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