Answer Posted / santosh singh

THIS IS THE EXACT PROCEDURE ALL OF U

GIVEN THICKNESS OF PLASTER = 12MM = 12/1000 M = 0.012M
RATIO (1:6)
SINCE YOU HAVE NOT GIVEN ASSUME THAT 100 SQ.M OF PLASTER IS
DONE.
THUS VOLUME OF PLASTER = 100 X 0.012 =1.2 CUM
ADD 60 % FOR UNEVENESS OF PLASTER SURFACE AND VOIDS

TOTAL VOLUME OF PLASTER WORK = 1.2 + 60/100 X 1.2 =1.92 CUM
VOLUME OF CEMENT = 1.92 / (1+6)=0.274 CUM
NO. OF CEMENT BAGS =0.274/0.0347 =7.89 BAGS (NOTE VOLUME OF
50 KG CEMENT BAG IS - 0.0347 CUM)

VOLUME OF SAND = 0.274 X 6= 1.644 CUM

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