During the time of manufacturing bricks mixture of minerals
like silica, clay,ash,sand,etc this propotionate should
vary in all every production and also watercontent plays
very major role in the bricks
as per IS CODE SAYS 15 TO 20 PERCENT is the max limit of
water absorption brick in 24 hrs
water absorption in bricks depend only voidratio of bricks
and also poor compaction ,
well burnt bricks it should be burnt on all sides equally
good shape also all dimensions should be in proper and
As per IS:3495,the average water absorption shall not be
more than 20 persent by weight upto class 12.5 and 15
persent by weight for higher classes in 24hrs.Bricks,which
do not conform to this requirement shall be rejected.Over
or under burnt bricks are not acceptable for use in the
water absorption of bricks depends on classification of
for first class bricks water absoption should be less than
20% and for second class bricks it should be less than 22%
and for third class bricks it is less than 25% by dry
weight of bricks
X = Cement ,Fine Aggregate & Coarse Aggregate are in taken in weights for batching.
Y= Cement , Fine Aggregate & Coarse Aggregate are taken in volume for batching.
Then what will be the relation between X and Y?