Standard size of brick = 240mm*115mm*57mm as per NBC Assume the size of mortar as 10mm Size of brick with mortar = 250mm*125*67mm Volume of 1 brick = (240*115*57)/1000 3 =1.573*10 -3 m3 Volume of 1 brick with mortar= (250*125*67)/1000 3 =2.093*10 -3 m3 Volume of mortar = 2.093*10 -3 -1.573*10 -3 m3=5.2*10 -4 m3 No of bricks required in 1m3 wall without mortar= 1/1.573*10 -3 =635.72 numbers No of bricks required in 1m3 wall with mortar = 1/2.093*10 -3 =477.78 numbers Assume 10% wastage , No of bricks for 1m3 wall construction = 477.78*1.1 =525 number
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