Answer / amey pathak

for M20 grade ratio is (1:1.5:3)
we consider for 10m3
add 50% for shrinkage & wastage
then it is 10+5=15m3
cement= 15/1+1.5+3 *1
= 2.72m3
for no. of cement bags = 2.72/0.0347
= 78.38 no.
= 79bags for(10m3)
so that for 1 m3 it is around 8 bags..........

Answer / kesav

For M20 concrete, The ratio of the mix is 1:1.5:3 (Nominal mix)
The total parts is 1+1.5+3 =5.5
Part of the cement is = 1/5.5
The total volume raw material for 1m3 of mixed concrete practically =1.57m3
Unit weight of cement =1440kg
Weight of cement per bag = 50kg

Now the calculation is =1/5.5X1.57X1440
= 411kg
In terms bags per m3 of conctrete is 411/50 = 8.22bags

Answer / nimmakayala

for M5 it is 2.5 to 2.6bags/Cum
the proportion is based on volume ie (1:5:10)

for M20 cement required is 8.01 bags/Cum approximate (as it
Design Mix it differ)

Answer / ramesh kumar

ANY RCC 1 M3 CONCRETE REQUIRED 20 MM METAL- 0.9M3

M20 MIX- 1: 1.5 : 3

3 PART OF METAL - 0.9 M3

1.5 PART OF SAND - 0.45 M3

1 PART OF CEMENT - 0.45 / 1.5

- 0.3 M3
1 M3 CEMENT - 1440 KG
0.3 M3 CEMENT - 1440*0.3

-432 KG = 8.64 BAGS

Answer / mujtaba hussain

For M20 concrete, The ratio of the mix is 1:1.5:3 (Nominal mix)
The total parts is 1+1.5+3 =5.5
Part of the cement is = 1/5.5
The total volume raw material for 1m3 of mixed concrete practically =1.57m3
Unit weight of cement =1450kg
Weight of cement per bag = 50kg

Now the calculation is =1/5.5X1.57X1450
= 413.859kg
In terms bags per m3 of conctrete is 414/50 = 8.28bags

Answer / mujtaba hussain

For M20 concrete, The ratio of the mix is 1:1.5:3 (Nominal mix)
The total parts is 1+1.5+3 =5.5
Part of the cement is = 1/5.5
The total volume raw material for 1m3 of mixed concrete practically =1.52m3
Unit weight of cement =1440kg
Weight of cement per bag = 50kg

Now the calculation is =1/5.5X1.52X1440
= 397.98kg
In terms bags per m3 of conctrete is 397.98/50 = 7.96bags

Answer / surya v kuchibhotla

While designing the mix, we shall take various paramenters
such as; workability, exposure, quality control etc., into
cognizance. If we consider the workability as 0.8, exposure
is moderate, QC as good, FA is in Zone-III, then quantum of
Cement required for 1cum of M20 concrete is; 53Gr OPC-465
kg, CA-1184.82 kg,FA-495.77 kg and water 186 lt.

Answer / srilingamoorthy

for M20 grade of concrete
Ratio 1:1.5:3
(i.e) cement : coarse aggregate : Fine Aggregate.
( jally ) ( sand )
1cubic metre cement = 1440KG
In the concrete 0.45% of the sand ratio is utilised for
cement.so for M20
= 0.45/3 X 1440
=0.15 X 1440
= 216Kg/cubicmetre
= 4.32Bags of cement/cubicmetre of concrete

Can anyone tell me the thumb rule for calculating structural steel quantity?

2 Answers   IVRCL, TN,

what is the proportion of m20 grde concrete? also how much water is required for this proportions? As there were any formula for water-quantity?

3 Answers  

How gate result to cube for 7 day? Formula for the cube testing?

1 Answers   Ambuja, Indiabulls, Legacy,

Q 1) 1 Mason and 2 LABOUR / _________CUM brick work Q 2) 1 Mason and 1 LABOUR / _________SQ FT Plaster work Q 3) 1 Carpenter & 2 Labour/_________SQ FT shuttering work Q 4) 100 SQ FT roof slab concreting ____________mason and labour required

0 Answers  

how much cement and sand required for 1cum rr masonry

0 Answers  

How to construct a water sump in a rocky soil?

0 Answers  

What are the different approaches in designing the floors of the service reservoirs?

0 Answers  

what is slope provided to floor?

3 Answers   Tulip,

what is levelling staff least count

13 Answers   L&T,

In Rcc work what ratio we need?

2 Answers  

1) a)to prepare mortar for bricklaying how much amount of water should be added for its maximum strength and workability(to avoid cracks which results, when high quantity of water is added)?is their a formula or ratio? b) suppose we want to make 1:3 mortar,what is the best way to measure cement ,sand and water and how? c)time before which freshly prepared mortar should be used? d)proper way to mix and make mortar? e)when should curing start after laying bricks and for how long?and also how many hours per day? f)what is shear wall (please in terms of layman lol) bookish definisions are confusing.... g) and last,acc to codes what are max no. of course that should be laid in a day.

0 Answers  

What are the deshuttering time for Salb Beam Column RCC Wall Footing Staircase

13 Answers   L&T,