10-14-2014, 10:57 AM
Bricks and their Selection During Construction
Bricks can be tested just by observation. Visually they should be in the correct shape with sharp corners. A uniform colour also ensures good quality. One test is to break a brick, it should not scatter into small pieces. Another process of testing is to strike two bricks against each other. Good quality bricks produce a ringing sound when struck with each other. Also, a good brick when dropped from a height of about a meter should not break. Another practical test is to soak a brick in water for about 24 hours. The weight of the brick before and after soaking should be checked. If the brick shows an additional weight of more than 15% after soaking, it should be rejected. For example, a dry brick weighing 2 kg should not weigh more than 2.3 kg after being soaked in water for 24 hours.
Bricks can be tested just by observation. Visually they should be in the correct shape with sharp corners. A uniform colour also ensures good quality. One test is to break a brick, it should not scatter into small pieces. Another process of testing is to strike two bricks against each other. Good quality bricks produce a ringing sound when struck with each other. Also, a good brick when dropped from a height of about a meter should not break. Another practical test is to soak a brick in water for about 24 hours. The weight of the brick before and after soaking should be checked. If the brick shows an additional weight of more than 15% after soaking, it should be rejected. For example, a dry brick weighing 2 kg should not weigh more than 2.3 kg after being soaked in water for 24 hours.