SURUL PATTAI | COIL BAR | சுருள் பட்டை

Characteristics

• Material: Typically made from high-strength steel.
• Form: Supplied in coiled form, which allows for easier transportation and handling compared to straight bars.
• Diameter: Available in various diameters, commonly ranging from 5mm to 16mm.
• Surface: Often ribbed or textured to improve the bond with concrete.

Applications

Coil bars are used in various construction and infrastructure projects:

• Reinforced Concrete Structures: Used in beams, columns, slabs, and foundations to provide tensile strength.
• Construction Sites: Preferred for their ease of transport and flexibility in handling, which reduces wastage and labor costs.
• Precast Concrete Elements: Used in the production of precast concrete products, such as panels and pipes.

Advantages

• Flexibility: Easier to handle and manipulate on-site, allowing for more efficient use and reduced labor costs.
• Transportation: Coiled form makes transportation more efficient and less costly compared to straight bars.
• Waste Reduction: Minimizes wastage due to precise cutting and bending according to project requirements.
• Storage: Requires less storage space compared to straight rebar, making it suitable for sites with limited space.

Technical Specifications

• Grades: Available in various grades, such as Grade 40, Grade 60, or Grade 75, indicating the tensile strength of the steel.
• Standards: Manufactured according to industry standards, such as ASTM A615/A615M, BS 4449, or equivalent national standards.
• Coating: Can be provided with anti-corrosion coatings, such as epoxy or galvanized coatings, for use in corrosive environments.

Handling and Installation

• Uncoiling: Requires specific machinery to uncoil and straighten the bars for use in construction.
• Cutting and Bending: Can be cut and bent on-site or off-site according to the specifications of the project.
• Placement: Must be accurately placed within the formwork to ensure proper reinforcement and load distribution within the concrete structure.

Safety and Precautions

• Handling: Proper handling equipment should be used to prevent injury due to the weight and tension of the coiled bars.
• Protective Gear: Workers should wear appropriate protective gear, such as gloves and safety glasses, when handling and working with coil bars.
• Storage: Should be stored in a dry, covered area to prevent rust and corrosion, especially if not coated.