What Are Galvanized Deformed Bars?

- Galvanized deformed bars, commonly known as rebars, are steel reinforcement bars that have been coated with zinc—usually through a process called hot-dip galvanizing. This coating significantly boosts their resistance to corrosion. Additionally, these bars are designed with ridges or deformations on their surface, which help them bond more effectively with concrete.

Key Features
- Zinc-Coated Surface: Protected against rust and corrosion.
- High Tensile Strength: Designed to withstand structural stress.
- Ribbed Texture: Provides better grip in concrete for a stronger hold.
- Durability: Lasts longer even in aggressive or coastal environments.

Common Sizes and Grades
- Sizes: Usually range from 10 mm to 40 mm in diameter.
- Grades: Often comes in Grade 40, Grade 60, or equivalent (varies by country standards).
- Standards: ASTM A767, BS 4449, or local equivalents.

Applications
- Galvanized deformed bars are widely used in construction projects that require both reinforcement and corrosion protection:
- Bridges and flyovers
- Coastal and marine structures
- Underground and water-retaining structures
- High-rise buildings
- Industrial facilities and power plants

Advantages
- Corrosion Resistance: Zinc coating acts as a barrier to moisture and chemicals.
- Longer Life Cycle: Extends the lifespan of structures, especially in corrosive environments.
- Low Maintenance: Reduces the need for frequent repairs and inspections.
- High Bond Strength: The deformed surface ensures strong adherence to concrete.
- Cost-Efficient in the Long Run: Higher initial cost, but lower life-cycle costs due to durability.

Conclusion
- Galvanized deformed bars are an excellent choice for long-lasting, durable construction, especially in environments exposed to moisture, salt, or chemicals. While they may cost more upfront, their resistance to corrosion makes them a smart investment in the structural integrity and longevity of your project.

Sources:
- https://www.galvanizedrebar.com/mechanical-properties/

- Rodriguez, J. (2019, October 15). These rebar types are alternatives to regular steel reinforcement. Retrieved April 17, 2021, from https://www.thebalancesmb.com/types-of-rebars-844455

- Rahman, F. (2018, September 17). What is rebar? Types and grades of steel reinforcement. Retrieved April 17, 2021, from https://theconstructor.org/practical-guide/steel-reinforcement-types-grades/24730/