DETERMINATION OF HARDNESS, SOUNDNESS, STRUCTURE AND SHAPE OF BRICKS APPARATUS

DETERMINATION OF HARDNESS, SOUNDNESS, STRUCTURE AND SHAPE OF BRICKS

APPARATUS

Ø  Hard steel or Nail

SPECIMEN

Three number of whole bricks from each samples collected for testing should be taken.

PROCEDURE

Ø  HARDNESS TEST

a)      In this test a scratch is made on brick surface with a hard thing.

b)      If that doesn't left any impression on brick then that is good quality brick

Ø  SOUNDNESS TEST

a)      In this test two bricks are held by both hands and struck with one another.

b)      If the bricks give clear metallic ringing sound and don't break then those are good quality bricks.

Ø  STRUCTURE TEST

a)      In this test a brick is broken or a broken brick is collected and closely observed.

b)      If there are any flows, cracks or holes present on that broken face then that isn't good quality brick.

Ø  SHAPE TEST

a)      Bricks are closely viewed to check if its edges are sharp and straight and uniform in shape.