Terracotta Tiles - Technical Terms & Descriptions

Strength
The unit is N/mm2 - This should be in between 10 and 12.5 for burned clay bricks.

Density
The unit of density is Kg/m3 the density of normal clay products is 1200 to 1250.

Water Absorbtion
Water absorbtion should not be more than 15% of the self weight of the product.

Efflorescence
This is a white patches which will occour over the bricks due to the

Fire Resistance
The unit is Minutes - The material should not catch fire even it is exposed to fire uptp 30 Mins.