Civil Engineer Education

Hye guys today topic is for bricks and every civil engineer know that 100 cft = 1350 no of bricks but Many of them does not know how it came from so let start the topic As we know that       100 cft = 1350 no,s of bricks Volume of bricks    9"×4.5"×3" Let's convert into the feet 0.75*0.325*0.25 So it equal to = 0.0703 cft volume of each bricks now we finding the volume of 100 cft without mortar 100/volume of each bricks 100/0.0703  =1422 .22 no of brick without mortar now we find the volume of mortar in 100 cft which is 10 % of mortar volume 10/100 *1422 = 142.40 no of bricks  now remove the mortar volume from the total number of bricks 1440-142 = 1280 no of bricks now add the contingency rate which is 5 % 5/100 *1422 =71 No of bricks no add the brick 1280 no of bricks 1280+71 =1351 no of bricks so we say that 100 cft = 1350 no of bricks..