Water Absorption Test of Bricks (IS: 3495 (Part II))
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| Water Absorption Test of Bricks |
The Water Absorption Test of Bricks can be classified into two tests:-
24 Hours Immersion Cold Water Test:-
Requirements:-
- Dry bricks, oven and a damp cloth.
Procedure:-
- Dry bricks are put in an oven at a temperature of 105 ° to 115°C till these bricks attain constant mass.
- The weight (W1) of the bricks is recorded after cooling them to room temperature.
- The bricks are then immersed in water at a temperature of 27° ± 2°C for 24 hours.
- The specimens are then taken out of the water and wiped with a damp cloth.
- Three minutes later, it is weighed again and recorded as W2.
- Now, the Water Absorption in percentage is:-
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| Water Absorption in % |
Five Hours Boiling Water Test:-
Requirements:-
- Dry bricks, oven and a damp cloth.
Procedure:-
- The weight of oven-dried bricks (W1) is recorded in the same way as in the test above.
- Then the specimen is immersed in the water and boiled for 5 hours.
- It is followed by cooling down to 27° ± 2°C by a natural loss of heat within 16-19 hours.
- The specimen is taken out of the water and wiped with a damp cloth and weight is recorded as W2.
- Now, the Water Absorption in percentage is:-
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| Water Absorption in % |
Note:- The average water absorption shall not be more than 20% by weight up to class 12.5 and 15% by weight for higher classes.
*Self Typed
*Source- Internet, Books, Self-Analysis