Specification For Perforated Burnt Clay Building Bricks (IS-2222-1991)
General Quality Bricks shall be free from cracks and flaws and nodules of free lime. Bricks shall have smooth rectangular faces with sharp corners Bricks shall be of uniform in colour and texture. The area of perforation shall be in between 30% to 45% of the total area of the corresponding face of the bricks. … Read more