2 No Brick

🧱 2 No. Brick (Second-Class Brick) – Description

✅ General Description:

• Name: 2 No. Brick (Second-Class Brick)

• Type: Kiln-fired clay brick (not as precisely made as 1st class)

• Color: Generally red or brownish, may have uneven burning marks

• Shape: Slightly irregular; edges may be chipped or rounded

• Size (Typical):

  • India: 190 mm × 90 mm × 90 mm

  • Bangladesh: 240 mm × 115 mm × 70 mm (can vary slightly)

• Weight: ~2.5–3.0 kg per brick

• Compressive Strength: 5–7 N/mm² (lower than 1st class)

• Water Absorption: 15–20% (higher than 1st class)

• Efflorescence: Moderate to high

• Firing: Kiln-fired, but often not uniformly or at optimal temperature

• Use: Non-load-bearing walls, temporary structures, low-cost housing

✅ Properties:

✅ Typical Uses:

• Partition walls

• Boundary walls (non-architectural)

• Paving (temporary)

• Filling or backup masonry

• Non-structural elements

⚠️ Notes:

• Not recommended for exposed brickwork or high-strength applications

• Usually plastered after laying to hide imperfections

• Cheaper than 1 No. bricks but lower in quality and durability