area of plaster = 3.05 x 3.05 = 9.3 m2
(convert thickness of plaster into m divide by 1000)
volume of plaster = 9.3 x (10/1000) = 0.09 m3
quantity of cement = 0.09/1+5 =0.09/6 = 0.02 m3
as cement comes in bags of 50 kg therefore volume of one
bag cement = o.0347 m3 (exact)
(or it may be taken 0.034 or 0.035 m3)

no. of cement bags = 0.02/0.0347 = 0.58 bags (almost 1 bag
of cement required for plaster )

quantity of sand = 0.02 x 5 = 0.10 m3

this is exact calculation
you can add 30% extra for wastage etc.

10'X10'=100 sft.
converted in to sqm.=100/10.76=9.29 sqm.
ratio= 1:5, 1+5=6
for cement----1/6 x 1.52=.25 m3 x 35.28=8.93/1.25=7.15
so 7.15 bag in a cum. so for 20mm thk.
for cum. 9.29 sqm x .020 mm = .18 cum.
therefore --7.15 x .18m3 = 1.28 bag answer
for sand------5/6 x 1.52=1.26 m3 x 35.28=44.68 cft./1cum.
so 44.68 x .18m3 = 8 cft answer
1.28 bag of cement
8 cft of sand. required in 10'10 wall with 20mm thk.

1)What is Suggested type of cement for concreting at water,
for mass concreting and where the chaces of gettin attucked
by salt?
2)How many types of camber?
3)why we always preffer short column in case of residential
building?
4) Is there any advantages between the use of One way slab
& two way slab?
5)What shoul be the % of steel for R. C. C. perpose based
on volume & area ?

OPC 43 OR PPC for rcc structures(raft foundation,column etc)?
For M20,,which cement is better and why?
for a residential structure (3 storey plus basement)