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Rebar, or reinforcing bar, comes in a variety of diameters and lengths.
These bars are important because they strengthen concrete and make it more stable, durable and capable of withstanding greater stress. Rebar also helps prevent cracks in the foundation and give extra support to load-bearing walls.
Rebar is required to increase the strength and durability of the concrete. Concrete has great compressive strength but poor tensile strength. Compressive strength refers to the capacity of concrete to withstand loads before failure. Tensile strength refers to the maximum stress that a material can bear before breaking when stretched or pulled apart.
This is why reinforcing with rebar is necessary. Rebar provides additional tensile strength to the concrete, thus making it stronger.
Rebars are typically made of steel because steel and concrete bond well together and the two share the same properties when it comes to thermal expansion. Depending on the needs of the structure or project, the rebar can be made of carbon steel, stainless steel, galvanized steel, fiberglass-wrapped steel, epoxy-coated steel, or other materials.
The two most common types of rebars are round rebar and deformed rebar.
Round reinforcement bars or round rebars are also known as plain reinforcing bars (PRB).
They’re straight, solid metal rods that have a plain, circular cross-section. They don’t have bends or deformations and have smooth surfaces.
Round rebars come in a wide range of lengths and sizes. It is often used when creating ligatures or applying rebar dowels to structures or projects, as well as to reinforce other bars, and separate mesh in the concrete.
This is why reinforcing with rebar is necessary. Rebar provides additional tensile strength to the concrete, thus making it stronger.
Round-shaped rebars are suitable for connecting columns and girders as they are flat at the ends and can be connected to other pieces of steel.
Round-shaped rebars are more economical than deformed rebars, however, as their surface is smooth in texture they are not resistant to slippage which makes it harder for the concrete to get a good grip on the bars. An advantage is that they can be easily cut and shaped as needed, so they are quite versatile.
Deformed reinforcement bars or deformed rebars come in different shapes. It can take the form of helical bars or corrugated steel. The deformations being referred to are the ridges, indentations, or protrusions that they feature. These ridges or indentations allow the concrete to grip the bars more effectively, making it less likely for the bars to slip once they have been set in the concrete.
Deformed bars also have a unique twisted pattern that helps them interlock with one another when placed side by side within the concrete structure. The height and spacing of the ridges or indentations are regulated and spaced uniformly throughout the bar.
Deformed rebar is more expensive than round rebar but resists slippage better and is nearly always used in high-stress applications like large-scale commercial and industrial projects.
Is Deformed Rebar or Round Rebar stronger?
Deformed reinforcement bar is stronger, as they have a higher tensile strength. This makes it the preferred material for projects such as building freeway overpasses, parking garages, bridges, or high-rise buildings.
However, deformed rebar isn’t always the better option. The choice between deformed or round rebar is often determined by the project parameters of each individual construction job.
Round rebar is usually more cost-effective and economical, and are also easier to use and acquire. It typically doesn’t require any further processing before use, and may suit your project better than deformed rebar, especially if you’re doing a simple concrete driveway or a basic home improvement project.
Final thoughts on
Deformed Reinforcing vs Round Rebar
Deformed rebar takes more time and effort to install, and is not as economical as round rebar, but since it’s stronger in terms of tensile strength, is a more suitable choice for heavy-duty construction projects and structures.
There’s no one type of rebar that outperforms all other types in every aspect. In any kind of structure, you should always take into account a project’s specific design and needs, then choose a type of rebar accordingly.
Do you have a project you want to start, or do you have questions about your current one? You can reach out to us for a consultation or a quotation!
Plain round rebar (reinforcing bar) supplied by InfraBuild Reinforcing is commonly used to separate mesh in concrete slabs and is used in a range of commercial and infrastructure applications. Plain round rebar has a range of applications from reinforced concrete piers, bored piles and footings to walls, beams, columns, slabs and precast products. Round rebar from InfraBuild Reinforcing is a Class N (normal ductility) bar and is available in 250 MPa for diameters 10–36mm.
To find out more about the plain round rebar stocked at your local InfraBuild Reinforcing please contact your nearest bar shop.
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