For M20 grade concrete, the mix proportion is 1:1.5:3 (cement:sand:coarse aggregates). If we consider a volume of 1 cubic meter, approximately 320 kg of cement would be needed.
0.6
4
Required slump height of M20 for different concrete structures, are normally calculated by the required slump value, which would come out to be 100 lits.
m15- 6.25 m20 - 6.8 m25 - 7.5 m30- 8.5 m35- 9 m40 - 10
Cement is not used for plastering, plaster is used for this.
M 15 grade - 1:2:4Cement bags required - 6.5 bagsCement required - 325 kgs
Mix ratio for M5 concrete is 1:1.5:3compressive strength is 20N/mm2 @ 28 days.1 part of cement, 1.5 part of sand, 3 parts of coarse aggregate.
M20 - 6.20bags
315 Kg/M3 approx.
1 bag
1 bag
concrete and cement
1:1.5:3 (cement,stone,sand)
Yes. OPC 43 grade cement can be used to make M20 grade concrete.It can be used to make concrete up to M30 Grade.See related link.
260 kg/cu m
Required slump height of M20 for different concrete structures, are normally calculated by the required slump value, which would come out to be 100 lits.
quantity of cement for M20 in one cubic metercement=1440 kg/m3sand=1700 kg/m3aggregate= 1600 kg/m3Lets solve for M20 i.e, 1:1.5:31 bag of cement = 50 kg =34.7 litres=35 litresi.e, 0.035 m3(item) (w/c ratio)(water) (cement)(sand)(aggregate)volume(0.42)(21ltr)(0.035)(0.0525)(0.105)voids - (0) (0) (0 60%) (40%) (45%)solidvolume (-) (0.021) (0.014) (0.0315) (0.05775) *sum=0.124Thus 50 kg of cement gives 0.124 m3 of concrete for M20 at 0.42 w/c ratio.Hence,cement required =0.035/0.124 =0.28 m3 i.e, 0.28*1440=403kgsand required= 0.0525/0.124 =0.42 m3 i.e, 0.42*1700 = 714 kgsimilarly aggregate required = 1360 kgwater required = 169 litreCheck: 403+714+1360 = 2477 i.e, density of concrete =2477kg/m3*NOTE: The quantity of cement, sand, aggregate & water varies with the w/c ratio and the density of materials.
It depends on the Grade of Concrete. general grades are M15, M20, M25 etc. here are the nos. of bag required -------------------Bag for 1 cum---------------Bag for 5 cum M15------------------- 6.4----------------------------32 M20-------------------- 8-----------------------------40 M25--------------------12----------------------------60
1:1.5:3:0.45 (cement,fine aggregate,coarse aggregate, water cement ratio)