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 1.2.3  Characteristice of a good Brick 

1. The brick should be table moulded ,well burnt in kilns, copper colour free from cracks and with sharp and square edges .the colour should be uniform and Bright through.
2. Brick should be of uniform shape and of standard size .
3. Bricks should give a clear matallic rings sound  when 
4. Bricks should not absorb water mor than by wheat 
5. No impressed should be left on brick surface when scratch ed with a finger nail 
6. Brick should not break into purchasing when drop flat on a hard ground from a height of about one metre.
7. Brick should have low thermal conductivity and should have good sound insulation property.
8. The Brick, when soaked in water for 24hour should not show deposit of salt when allowed to do dry in shade
9.