TYPES OF REBAR DETAILING
9 - TYPES OF REBAR DETAILING SERVICES Rebar is a short word commonly used in construction meaning Reinforcing Bar. Concrete alone can withstand compression forces but it
cannot withstand tension forces. So, rebar which is a type of reinforced material is used in place of concrete. More commonly used reinforcing material is steel. However, other materials like aluminium can also be used for reinforcement. Based on the specification, use, and application, rebar can be classified as follows:
Carbon Steel Rebar Welded Wire Fabric Rebar Sheet-Metal Rebar Epoxy-coated Rebar European Rebar Stainless Steel Rebar Galvanized Rebar Expanded Metal/Wire Mesh Rebar Glass-Fiber-Reinforced-Polymer Rebar
CARBON STEEL REBAR Also known as “Black Bar”, this type of rebar is most common of its types. The advantage of carbon steel rebar is its versatility. For
the structures that are constantly exposed to humidity or water, this type of rebar cannot be used as it gets corroded easily. Apart from this usage, carbon steel rebars are considered to be the best option.
WELDED WIRE FABRIC REBAR ď‚Ąď€ A series of steel wires are welded together at right angles to form welded wire fabric rebar. They are welded electrically at the wire
crossings. The welded wire fabric is also called WWF. This rebar is used in walls, and floor slabs where the ground is compacted. Such rebars are widely used for road pavement, box culverts, concrete canals, and drainage structures.
SHEET-METAL REBAR ď‚Ąď€ This type of rebar is made from sheets of steel. Firstly, the steel pieces are heated and then allowed to cool down to prepare a sheet.
The sheet is bent into corrugations with holes punched at regular intervals. It is used for floor slabs, roof, and stairs.
EPOXY-COATED REBAR ď‚Ąď€ Epoxy is a type of material, a polymer that is used as a coating. This coating prevents corrosion of the rebar. Hence, it is also very
expensive to use this type of rebar. An epoxy-coated rebar is used in areas that require corrosion resistance from salt water. The coating is generally very thin, and hence it must be purchased from an authenticated supplier.
EUROPEAN REBAR ď‚Ąď€ Europen rebar is a cost-effective alternative to other rebar types. However, it cannot be used for areas that are prone to bad weather
conditions like earthquakes, tornados, hurricanes, etc.
STAINLESS STEEL REBAR ď‚Ąď€ Stainless steel rebar is a good alternative to carbon steel rebar. It is galvanic resistant and hence used extensively in corrosion prone
areas or where the repair work cannot be done time and again. However, it costs as much as eight times more than epoxy-coated rebar.
GALVANIZED REBAR ď‚Ąď€ Galvanized rebar are specifically used for highly corrosive areas. It provides 40 times more protection than carbon steel rebar.
However, they are one of the costliest rebar types.
EXPANDED METAL/WIRE MESH REBAR ď‚Ąď€ Expanded metal rebar is made by shearing a sheet of steel into parallel lines. This is then expanded to form a diamond shape or square
shape. It is commonly used in areas where a considerable thickness of plaster is required. Wire mesh is used for sidewalks, small concrete pads or walkable surfaces.
GLASS-FIBER-REINFORCED-POLYMER REBAR GFRP rebars will never ever corrode under any circumstances. Against this, it is also very costly. It costs as much as 10 times the epoxy
-coated rebars.
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