#8 Rebar: Overview and Specifications

1. Diameter:

• Imperial: 1 inch (8/8 inches, as the number denotes eighths of an inch).
• Metric: Approximately 25.4 mm (often rounded to 25 mm or listed as 25.2 mm in soft metric standards).

2. Weight:

• Per Foot: 0.668 lbs/ft (calculated as 12×0.66812×0.668).
• Per Meter: ~1.00 kg/m (converted from 0.668 lbs/ft using $0.668\times 0.4536/0.3048$).

3. Cross-Sectional Area:

• Imperial: 0.79 in² (standard value for engineering calculations).
• Metric: ~509 mm².

4. Typical Applications:

• Large-scale concrete structures (e.g., foundations, retaining walls, bridges).
• Heavy-load beams, columns, and piers.
• Used where high tensile strength and load-bearing capacity are required.

5. Material and Grades:

• Material: Carbon steel with deformations (ribs/lugs) for enhanced concrete bonding.
• Common Grades:
  • Grade 60: Yield strength = 60,000 psi (414 MPa).
  • Grade 75: Yield strength = 75,000 psi (517 MPa).

6. Standards:

• Complies with ASTM A615 (U.S. standard for deformed carbon steel bars).

7. Handling and Safety:

• Wear gloves and eye protection (sharp edges).
• Use proper lifting equipment for heavy bundles.

Summary Table

Note: Always consult engineering specifications for exact requirements in construction projects.