Epoxy Coated Rebar- manufacturing, advantages & applications

Epoxy Coated Rebar- manufacturing, advantages & applications

Epoxy Coated Rebar acts as a barrier system intended to prevent moisture and chlorides from eroding the surface of the reinforcing bar. It rebars corrosion performance. Epoxy Coated Rebar is used to provide additional protection in environments where reinforcements are subjected to accelerated corrosion. The use of these bars is significantly increasing as the concrete use is becoming more diverse in corrosion-prone areas. Epoxy coatings provide optimum protection against abrasion, turbulence, corrosive fluids and extreme temperatures. Epoxy coated rebar is not only durable but also resistant to many corrosive substances. It offers corrosion resistance especially for marine structures.

These types of bars are coated with Fusion Bond. These coatings are in the form of dry powder at normal atmospheric temperature. The powder is applied electrostatically to the surface of cleaned hot steel bars and cured to form a protective film after undergoing various chemical processes. The epoxy-coated rebars last longer due to the protective film and thereby contribute to the quality of construction. A good quality Epoxy Coated TMT Bar must have a uniform coating, Chemically stable and adhere to a high pH environment.

Advantages of Epoxy Coated Rebar

Plain steel often falls prey to corrosive forces over time. As rust forms on the outside of the embedded rebar, it exerts an increasing amount of pressure on the surrounding concrete. This can cause the concrete slab to spontaneously crack, while also making the concrete more vulnerable to damage caused by blows and compressive forces. The surface of the concrete may develop patches of spalling, creating rough and unattractive areas. Epoxy-coated rebar prevents corrosion and the problems that it causes and offers a multitude of advantages.

◎ The coating layer is firm and stable which offers good tenacity and high insulation

◎ The coating layer is corrosion-resistant

◎ Lower maintenance cost

◎ Lower lifecycle costs over time

◎ Uniform thickness of coating which adds to the quality of production

◎ Acts as an insulator for electrochemical cells and offers barrier protection to steel which prevents the entry of chloride ions

◎ Excellent adhesion and it forms a lasting bond with the surface of the steel rebars

◎ High mechanical impact strength.

Applications of Epoxy Coated Rebar

Epoxy Coated TMT Rebars are used in concrete subjected to corrosive conditions. These may include exposure to deicing salts or marine environments.

◎ Underground buildings

◎ Bridges

◎ Pavements

◎ Offshore structures.

◎ Parking structures.

◎ Marine structures