Core Material Testing Services LLP

Burnt Clay Bricks are traditional masonry units made by molding, drying, and firing natural clay at high temperatures (900°C – 1200°C). These bricks are widely used in residential, commercial, and industrial construction due to their strength, durability, and weather resistance. They conform to IS 1077:1992, ASTM C62, and BS 3921 standards.

�� First-Class Bricks – High-quality, uniform size, smooth surface, used in exposed masonry
�� Second-Class Bricks – Slightly irregular, used for plastered walls and load-bearing structures
�� Third-Class Bricks – Low strength, used for temporary structures
�� Fourth-Class Bricks – Over-burnt, used as aggregates in foundations and roads

�� Common Dimensions (L × W × H):
✅ 190mm × 90mm × 90mm (Standard IS Size)
✅ 230mm × 110mm × 75mm (Traditional Size)
✅ 200mm × 100mm × 100mm (Modular Size)

�� Compressive Strength:
✅ 3.5 MPa – 10 MPa (Depending on class & application)

⚖ Density:
✅ 1700 – 2000 kg/m³ (Varies based on clay composition)