Prove that 13.5 Number of Bricks are required in per cft of walls in brick masonary|1cft of brick masonary=13.5 no of bricks

PROOF:

We know size of traditional brick=230mmx115mmx75mm.

  

                              

Add 2mm Mortar on each side(3 Sides)

Size of brick with Mortar=232mmx117mmx77mm.

Now Convert Units in metre

  232 m X 117  m X 77 m               (1 Metre=1000mm)

 1000       1000      1000               (1mm=1÷1000 Metre)

 0.232mx0.117x0.077m.

                

 0.0020900m³

Volume of one Brick=0.0020900m³

Now convert the units from cubic metre into cubic feet

We Know 1 cum=35.31 Cft.

1 Cubic Metre=35.31 Cubic Feet.

Volume of one Brick=0.0020900x35.31 Cft.

                                 =0.0738010Cft.

We have to find the quantity of bricks required Per Cft (Per 1 Cft)

Required Quantity=1Feetx1Feetx1Feet=1Cft.

Quantity of Bricks required=

Volume of Total Required Quantity

Volume of one Brick

           1 Cft                 

0.0738010 Cft

                                

                                  =13.5 No's.

                                 Hence proved.