The good quality bricks must possess a number of the characteristic for their efficient work in building and other structures. Some important characteristics are as follows:
A good brick should be uniform in shape and standard in size.
The colour of the good brick should be deep red, cherry or copper in colour.
A good brick should have even surface, sharp edge and compact structure.
A good brick should give a clear metallic ringing sound when struck with each other.
A good brick should be sufficiently hard and no nail impression should be left in the brick surface when scratched with a fingernail.
A good brick should be well burnt in the kilns.
A good brick should not break when dropped flat on a hard surface from a height of one meter.
The crushing strength of first-class bricks should be 10.5 N/mm2 or 105 kg/cm2.
Bricks should be moulded from good brick earth which does not contain organic matter like salts and stone.
A good brick should not absorb water more than 20% by its dry weight when soaked in cold water for a period of 24 hours.
A good brick, when soaked in water for 24 hours, should not show deposits of white salts when allowed to dry in salts.
A good brick should be free from cracks, flaws and lime nodules.
A good brick should able to resist atmospheric actions.
I hope I have covered all the requirements of good quality brick. If you find this article helpful please be sure to share it.
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