Answer / rrbharathreddy94@gmail.com

Plastering with CM = 1:4
Thickness = 25 mm
Area to be plastered = 260.40 square meter
Thickness of moter layer =25mm=0.025M
volume of moter required =260.40X0.025=6.51 Cum
Add 15 percent of allowences for undualation of surface & wastage = 6.51/100X15=0.976Cum
=6.51+0.976= 7.486 Cum ( total Volume of moter required)
Sand required for 7.486 Cum of CM 1:4= 7.486 Cum
Cement required for 7.486 Cum of CM 1:4= 7.486/4=1.871Cum
Wt of Cement Required =1.871X1440=2694.96 Kg = 2695 Kg (say).

Answer / arasu

1sqm 25mm tk 1×1×.025=.025 dry volume of cement =1.33 unit wt of cement 1440kg 1.33×.025×1440×1÷5(1+4)=9.57kg 240sqm×9.57=2298kg÷50=46bag

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