QUANTITY OF MATERIAL - CEMENT ,SAND & METAL
CALCULATION OF MATERIAL QUANTITY. CONCRETE Mix Ratio 1:2:4 - - (1:2:4)=1+2+4=7 7 is mixing propotion Volume of wet cement concrete - 1.54 to 1.57 unit weight of cement is 1440kg/cum 1 bag of cement – 50kg/bag - =50/1440=0.034722 cum Cement = 1.54/7=0.22 0.22/0.03472=6.33 bags 1bag of cement = 50kgs =6.33*50kgs=316.82 kgs sand = 0.22*2=0.44cum 2 is the mixing of proportion metal = 0.22*4=0.88cum 4 is the mixing of proportion CEMENT = 6.33 NOS BAGS SAND = 0.46 M3 METAL = 0.88 M3 PLASTERING Area of plaster = 3.05 x 3.05 = 9.3 m2 Thickness of plaster -10mm Ratio – 1:5 Volume of plaster = 9.3 x 0.01 = 0.09 m3 Quantity of cement = 0.09/1+5 =0.09/6 = 0.02 m3 1 bag cement =0.0347 m3 no. of cement bags = 0.02/0.0347 = 0.58 bags quantity of sand = 0.02 x
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