How to find quantity of cement mortar?
I want to know the req quantity of cement for plastering 300
sft in final coat with 12 mm. Any math involved? Plz help
Answers were Sorted based on User's Feedback
Answer / er. jawed
Since area to be plastered = 300sft = 300/10.76 =27.88 sqm
qty of mortar =27.88*.012 = 0.335
now increase this qty by 20% for filling of joint, followed
by 1/3rd of initial qty (i,e; 0.335)which is equivalent to
dry mortar qty
Now, qty of mortar = 0.335+0.20*.335+1/3*0.335 = 0.514 Cum
for mortar Ratio 1:4 , sum of ratio =1+4 =5
Qty of Cement =.514/5 = 0.1028 Cum , (2.96 = 3 Bag )
as 1cum cement =28.8 Bag
Qty of sand = .1028*4 =0.4112 Cum = 13.27 Cft
Hope this will be helpfull for you
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / deepak katyal
Area of plaster surface = 300 sq.ft. = 27.868 sq.mt.
Thickness of Plaster = .012 mt.
Volume of Cement Mortar = 27.868x.012 = .334 cu.Mt.
Extra for wet mix (wastage) 20% = .334*20/100 = .0668 cu.mt.
Extra for dry mix 30% = .334*30/100 = .1004 cu.mt.
Total Volume = 0.5012 Cu.mt.
Ratio of Plaster = 1:5
Area of cement = 0.5012/6 = .083 cu.mt.
Weight of cement = .083X1440 = 119 kg
Bags of cement = 119/50 = 2.39 bags.
Area of Sand = .5012*5/6 = .417 cu.mt.
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / er kumar biswajit sinha [ m .
ASSUME PROPORTION IS [ 1: 6 ]
AREA = 27.88 SQ MT
SET VOLUME = 27.88 X .012 = 0.334 CUM
30 % EXTRA FOR JOINT FILLING AND UNIFORM SURFACE =
0.334+0.36 = 0.694 CUM
[ 1 CUM SET MORTAR = 1.25 CUM DRY MORTAR ]
SO , 1.25 X 0.694 = 0.867 CUM
0.867 / 7 = 0.123 CUM CEMENT
NO OF BAGS = 28.88 X 0.123 = 3.57 BAGS = 178.5 KGS
SAND = 0.867 X 6 = 5.2 CUM
| Is This Answer Correct ? | 28 Yes | 27 No |
Answer / y.singh, b.tech., nit jaipur
For 100 sqm dry volume of mortar is= 2cum in wall and 1.8
in ceiling
Now suppose mortar ratio is 1:4
than cement is=(2/1+4)*1=0.4cum=0.4/0.035=11.42 begs for
100 sqm
Now your reuirement is= 300sqft=27.88sqm
so consumption is=(27.88*11.42)/100=3.18 begs
Ref: B.N.Dutta
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / tayab khan
Given data
area quanity: 300 sq.ft. thisimplies: 27.87cu.m
thickness of plaste: 12mm or: .012m
ratio 1:5 (assume)
Wet mixed mortar for uniform layer:27.87*.012:
0 .334cu.m adding 30 percent to fill up joints, unevensurfaces, etc
The quantity of mortar comes to 0.334 plus 0.100:0.434
Increasing by 25 percent the total dry volume
0.434 plus 0.108 : 0.542cu. M
cement: 1/6 *0.542 :0.0903 cu.m
0.0903* 30 : 2.70 bag say 3bag
sand: 5/6*0.542 :0.45cu.m
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / sandip das simplex infr
Generally
Dry Volume=1.54 X Wet Volume - For Concrete
Dry Volume =1.35XWet Volume – For Mortar
Wastage not taken for calculation of Ingredient, it’s taken in quantity which to be calculated.
Percentage taken as per your choice (2-5%).
Now you know how to calculate the ratio.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / sudiptodas
its simple
1st step to fined the volume of mortar
as per question
300 sft=27.28m*m
thickness of plaster= 12mm
so volume of plaster= 27.28*.012=.3336m3
this is wet volume.to transfer in to wet
.3336*1.54=.514
this is your total mortar
conceder 1:3 mix
so cement= .514/4=.128= 3.7 bags
sand .128*3=.384m3
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / md.hedayetullah
Firstly decide ratio of Mortar is 1:5
SQMT OF mortar is =300/10.76=27.88 sqm
Volumn of mortar is =27.88*.012=0.334 Cum
required bag of cement is =.334/(1+5)*.035=1.59 bags
Uses in ccement 1.59 bags
| Is This Answer Correct ? | 0 Yes | 2 No |
Answer / umair ahmad
unit of rate=300sft
thickness of plaster=12mm
wet volume of mortar=300*0.039=11.7cft
dry volume of mortar=11.7*1.27=14.85cft
ratio of cement=1:4(Assuming 1:4 ratio of mortar)
sum of ratio=1+4=5
quantity of cement=1/5*14.85=2.97cft.
2.97/1.25=2.376 Bags.
quantity of sand=4/8*14.85=7.425cft.
| Is This Answer Correct ? | 0 Yes | 2 No |
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