Civil engineering

Past vs Present,,, engineers 🤩🤩🤩

How many bricks are required in 1 cft?

Solution:
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 arr
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.