Quantity Estimation for Brickwork

Lets calculate the rate analysis for 5 CuM Brickwork

Standard size of brick = 9 cm X 9 cm X 19 cm

Size of brick with cement mortar on both sides = 10 cm X 10 cm X 20 cm

No of Bricks in 5 CuM =        5 / ( 0.1 X 0.1 X 0.2 ) = 2500 Bricks

Mortar Required for 1 Cum = 5 – (2500 X 0.09 X 0.09 X 0.19) = 1.153 CuM

Mortar volume increases for frog filling, brick bonding & wastage by 15 %

So the volume of wet mortar becomes = 1.153 + (1.153 X .15 ) = 1.325

for Dry volume of mortar mixing we will have to consider 1/3 rd of more of wet volume

Therefore Volume = 1.325 + ( 1.325 / 3 ) = 1.766 CuM 

Considering the mortar ratio as 1:4

Cement Quantity =  ( 1 X 1.766 ) / ( 1+4 ) = 0.353 CuM

Cement Quantity in Bags of 50 Kg = 0.353 / 0.035 = 10.08 Bags

Sand Quantity in CuM = (4 X 1.766) / (1+4) =  1.41 CuM

 

 

 

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