Proof
no of bricks in 1 cft
Here is proof of 13.5 bricks in one cft
Size of brick= 9" x 3" x 4.5"
Volume of brick in cft
Brick = .75' x .25 x .375'= .070 cft
Bricks required for 1 cft= 1/ .070 = 14.285 bricks
10% space covered by morter
So
14.285 x 10/100= 1.429
Now bricks are
14.285 - 1.429 = 12.856 bricks
Add 5% wastage of bricks
12.856 x 5/100 = .6428
Here total no of bricks for 1 cft
12.856 + .6428 = 13.498 bricks
Say
13.5 bricks in 1 cft
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