HOW TO PERFORMED 5 HOURS BOILING WATER TEST (IS: 5454: 1976) ?

OBJECTIVE 

To determine the water absorption and coefficient of saturation of burnt clay building brick.

APPARATUS

1. Ventilated Oven: Maintain at constant temperature at 110-115 °C

2. Boiling water arrangement 

3. Water Tub 

4. Dump Cloth

5. A sensitive balance capable of weighing with in 0.1 % of the mass of the specimen 

• The number of  specimens shall be selected according to the IS: 5454: 1976
• The dimension shall be measured to the nearest of 1 mm.

PROCEDURE 

The weight of the oven dried bricks (Wo) is recorded as above. Then the specimen is immersed in the water and boiled for five hours, followed by cooling down to 27° ± 2°C by natural loss of heat within 16–19 hours. The specimen is taken out of water and wiped with a damp cloth and the weight is recorded as W3.