What are the field test of bricks?

Answer 1

The following visual tests and field tests be carried out to ascertain good quality bricks for use in works.

a. Well burnt bricks are copper colored and are free from cracks.

b. They posses sharp and square edges.

c. They are of uniform color, shape and size as per standard.

d. When struck with each other, they produce clear metallic ringing sound.

e. Fracture of good bricks show uniform and bright compact structure without any voids.

f. They absorb minimum water when immersed in water. The absorption should not be more than 20 % when immersed in water for 24 hours.

g. Good bricks are hard on their surface and leave no impression when scratched with nails.

h. Good bricks do not break when dropped from 1 m height

i. Good bricks when soaked in water and dried, do not show white patches or white deposits on their surface.

j. The good quality bricks could be gauged easily by the percentage of bricks that get broken in transit and stacking in the course of ordinary handling (2 to 3%).