Introduction
A number of steel bar types are used in concrete buildings. The endurance of the concrete construction is ensured by the use of reinforced steel bars.
Concrete is made with 5 different kinds of steel reinforcement bars.
Hot Rolled Deformed Bars
Cold Rolled Steel Bars
Mild Steel Bars
Twisted Steel Bars
Welded Steel Wire
Hot Rolled Deformed Bars
TMT Bars, which stand for Thermo mechanically treated bars, are another name for hot-rolled deformed bars. Because they have high tensile strength, TMT Bars are often used in RCC (Reinforced Concrete Structure). The ribs on TMT Bars make it possible for cement concrete to stick together better. The best TMT Bars have a tensile strength of 64,000 psi (PSI – Strength of Concrete is measured in pounds per square inch).
Cold Rolled Steel Bars
Even though cold-rolled steel bars are made at room temperature, they look like hot-rolled bars. These bars are made of weak materials and are easy to bend. Cold-rolled bars are almost no longer on the market, but they are still used in some building projects that don’t require a lot of tolerance. It can be stretched up to 60,000 psi.
Mild Steel Bars
This bar is round and has a smooth, flat surface. Mild steel bars are used to make beams and slabs out of RCC. There is a tensile strength of up to 40,000 psi. Mild steel bars are used in small projects with limited funds because they don’t stick well to concrete and aren’t very good.
Twisted Steel Bars
Twisted steel bars are also called “prestressing tendons.” Almost seven different wires have been woven together to make this string. Twisted steel bars have a high tensile strength of 270,000 psi. Most of the time, these are used on scaffold braces to make reinforced cement concrete stronger. It makes sense because of how well it holds together.
Welded Steel Wire
Steel wires are joined together to make weld mesh. A medium amount of tensile strength is made. These are used for fencing, dividing rooms, etc. It is often used in certain parts of buildings because it is easier to find in different diameters and is stronger than a mild steel bar.
It is very important to know that thermomechanically treated (TMT) bars are often used because they have high tensile strength. TMT Bars are strong and also have the right amount of flexibility. Because of this, it offers the best protection possible during any natural disaster, such as an earthquake, flood, etc. TMT Bars have less carbon than other types of steel, which makes them very resistant to corrosion and less likely to wear down over time.
IS Standards say that the Fe 500d grade of TMT Bar is the best mix of strength and flexibility. Because of this, it is highly recommended for building projects.
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