Brick Masonry : Calculating number of bricks, quantity of cement and sand for Brickworks.

Calculating number of bricks, quantity of cement and sand for Brickworks. 

 Assumptions: 

1. The standard Size of Brick is 190 mm × 90 mm × 90mm 

2. Thickness of mortar used is 10mm 

For 1 cubic meter of Brickwork, 

Volume of Brick without mortar = 0.190 × 0.09× 0.09 

                                                        =0.001539 m3 

Volume of Brick with mortar      = 0.2 × 0.1× 0.1 =0.002 m3 

For 1 m3 brickwork number of bricks required is 

                                                      =1/0.002 

                                                      =500 nos 

Quantity of Mortar  

             = Volume of Wall – (volume of brick without mortar×number of bricks required)                        

             =1- (0.001539 × 500)

             =0.2305 cubic meter 

Cement Sand Calculation For Cement Sand Ratio of 1:6 

 Mortar Quantity =0.2305 m3 (Wet Condition) 

For dry mortar volume increase 33% 

Dry Mortar volume = 0.2305×1.33 

                                =0.306565m3 

 Quantity of Cement = 0.306565/(1+6) × 1 (1 Ratio of cement) 

                                     = 0.0043795 Cum

                           In Kg = 0.0043795 × 1440 (Density of cement = 1440 kg/m3) 

                                   = 63.0648 Kg 

                          In Bags = 1.26 bags  (1 bag of cement contain 50 Kg)

Quantity of Sand = 0.306565/(1+6) × 6 (4 Ratio of sand) 

                            = 0.26277 Cum 

Water Required = Cement quantity in Kg × 0.5(water cement ratio = 0.5) 

                          = 63.0648 × 0.5 = 31.53 Liters

So for 1 m3 (In 1: 6 Cement sand Mortar) brickwork the required quantity of materials are : 

Bricks : 500 Nos 

Cement = 63 Kg 

Sand = 0.26277 Cum