Types of Rebars – Applications, Uses and Specifications

Rebar, also known as reinforcing bar, is defined as the hardened steel that strengthens structural concrete. Like a network of welded and tied connective rods threading their way through the building material, the fortifying mesh absorbs loading tension. Certainly, that composite aggregate, when cured, is designed to withstand great compressive stresses, but it will crack and weaken when these heavier tension forces have their way. High tensile steel, formed into a densely packed lattice, eliminates such material fractures.

Fundamental Reinforced Bar Types 

Let’s stick with the ‘Rebar’ label because it’s a shorter, easier to remember technical term. So, what are the different rebar varieties? Starting with Welded Wire Fabric, we’ll jump straight into this article. Check it out, this rigid wire has been formed into a grid. The prefabricated panels add a material backbone to fracture-prone concrete slabs. Arranged into spaced longitudinal and crosswise mounted wiring lines, the prefabricated mesh can be seen being electrically welded on a construction site. Next, sheet-metal reinforcing bars void the square spaces. Instead of a grid, this metal plating punches holes in annealed steel panels. Imagine this slender panelling as a floor, roof, or stairwell reinforcement core, one that really strengthens wide-area concrete applications.

The Specialized Rebar Families 

First on the agenda here is stainless steel, a material that replaces the carbon-reinforced alloys that are typically used in strengthened Rebar. As strong as any other graded steel, the stainless rating comes to the fore when the concrete base requires a corrosion defeating feature. Likewise, if stainless steel isn’t viable, epoxy-coated Rebar variants really eliminate corrosion risk factors, for this rustproof coating is designed to eliminate galvanic corrosion and material oxidization, that two-headed threat we encounter so often on building sites. Finally, and we’re now moving away from conventional longitudinally arranged wires, expanded metal wire mesh occupies an important place in Rebar fabrication tech. Shaped as closely aligned wire strips by a fabrication shop, the strips are expanded until they form that easily recognizable diamond-like profile.

Count on seeing those epoxy-coated and stainless steel variants in places where water and salt air are saturating the area. As for the expanded metal and sheet metal groups, the Rebar types that favour a reduced space between the wire elements, these are commonly used in parking garages, floors, pavements, roofs, and stairs. Divided further into materially-purposed groups, rod codifiers further classify the Rebar. There are steel gauges, weldable and workable variants, and wire sizes to explore. Beyond those technical identifiers, this metal skeleton can even be traced back to the mill that first processed the material.

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