Different Types Of Iron Rods Used In Construction
In large construction projects taken up by Ferro Fabrik, a leading steel company in Ghana, a length of iron known as an iron rod is commonly used. Iron rods, also known as rebar, are woven into reinforced concrete to increase structural tension. An iron rod can be purchased with or without ribs. Wrought-iron rods can be used in various decorative art projects, but construction-grade iron rods are more commonly used in building or construction projects.
Wrought iron is a fibrous metal that is soft and easy to work with. The texture resembles that of wood. Essentially, “wrought” means “worked.” Since wrought iron is so expensive to make, it is no longer produced on a large scale; instead, it is primarily used in conservation to preserve the authenticity of historical sites. The iron is made from recycled scrap. In the early twenty-first century, mild steel is used more often than wrought iron to make most items. Because it is still made by hand, it is still referred to as wrought iron. Now, let’s take a look at some of the different types of iron rods used in construction.
Mild Steel Bars
In reinforced cement concrete work, mild steel bars are used for the tensile stress of RCC (Reinforced cement concrete)slab beams, etc. These steel bars range in diameter from 6 to 50 mm and have a plain surface. These rods can be quickly and damage-free cut and bent because they are produced in long lengths. and the mild steel iron rod price in Ghana.
Deformed Steel Bars
Deformed bars, which are steel rods with lugs, ribs, or other surface deformation, reduce concrete slippage and strengthen the bond between the two materials. Tensile stresses on deformed bars are higher than on plain mild steel bars.It is possible to use these bars without end hooks. Along the bar, the deformation should be spaced at essentially uniform intervals.
It is common to use deformed bars that have projecting ribs or are twisted to improve the bond with concrete in order to reduce cracks that may develop in reinforced concrete around mild steel bars as a result of stretching of the bars and some loss of bond under load. These bars are made in sections ranging from 6 mm to 50 mm.
Additionally, calculated bond strengths for deformed bars should be 40 to 80% higher than those for plain round bars with the same nominal size. Additionally, it has higher tensile stress than plain round bars with the same nominal size.
Despite being produced at room temperature, cold-rolled steel bars resemble hot-rolled bars in appearance. These bars consist of poor strength and are easily bendable. Although they are still used in some construction that doesn’t require much tolerance, cold-rolled bars are almost completely off the market. Tensile strength on it is up to 60000 psi.
Thermo mechanically treated bars, or TMT Bars, are another name for hot-rolled deformed bars. TMT Bars are frequently used in RCC (Reinforced Concrete Structure) because of their superior tensile strength. Better bonding in cement concrete is made possible by the ribs on TMT Bars. The tensile strength of the highest quality TMT Bars is 64000 psi (PSI – Strength of Concrete is measured in pounds per square inch).
Twisted Steel Bars
Prestressing tendons are another name for twisted steel bars. These are a strand of nearly seven different wires that have been spun together. The high tensile strength of twisted steel bars reaches 270000 psi. These are primarily utilized on scaffold braces when prestressing reinforced cement concrete. It is plausible because of its high tensile strength.
Welded Steel Wires
Weld mesh makes up welded steel wires. Medium tensile strength is produced. These are employed as fencing, partitions, etc. It is widely used in specific construction segments because it is more readily available in a variety of diameters and has greater strength than a mild steel bar.
General Safety Measures For Using Steel Bars In Reinforcement
- Steel bars are clear, devoid of loose mil scales, dust, paint, oil, or other coatings that could obliterate or lessen bond strength.
- Steel bars should be stored in a way that prevents deterioration, corrosion, and distortion.
- An oily substance should not be used to remove rust from steel bars.
- The bar is accurately and correctly bent into the size and shape indicated in the drawings.
- Bars that cross over one another should be kept apart from one another with concrete.
Conclusion
According to IS Standards, the Fe 500d grade TMT Bar has the ideal combination of strength and flexibility. As a result, it is highly recommended for construction purposes. The leading steel company in Ghana is Ferro Fabrik Limited (an ISO 9001:2015 certified company). The fact that the company has not compromised on quality has enabled it to achieve unprecedented success.
