Grades of Concrete

How to know proportions of cement, sand, aggregate in different types of grades like M5, M10, M20, M30?

Questions by kr.madala

Showing Answers 1 - 16 of 16 Answers

kudinesh

  • Feb 10th, 2010
 

See there is no fixed mix ratio. It depends on property of materials used in the mix. we have to perform a mix design based on standard procedures like ACI method, DoE method, BIS method and so on.

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aditya

  • Oct 3rd, 2011
 

there is a process called sieving of sand. if the proportion of mixture is passed through the 4.75mm i.s. seive,the proportion passed out can be termed as sand the proportion that is retained on the sieve can be termed as gravel. this is valid if the proportion is the mixture of only sand and gravel.

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santhosh

  • Nov 3rd, 2014
 

M5: 1:4:8
M10: 1:3:6
M15: 1:2:4
M20: 1:1.5:3
M25: 1:1:2

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Anil kumar

  • Nov 9th, 2014
 

1:2:4

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s.sethu manoharan

  • Nov 29th, 2014
 

M5 :1:5:10
M7.5 :1:4:8
M10 :1:3:6
M15 :1:2:4
M20 :1:1.5:3
M25 :1:1:2

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Balasubrahmanyam gvjb

  • Dec 15th, 2014
 

How is calculate of the cement in kgs in grade of concrete

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Amanat Said

  • Dec 19th, 2014
 

this is simple, we easily calculate it by volume, if we take M10 concrete the ratio of M10 is 1:2:4 , in this proportion 1 is Cement, 2 is fine aggregates and 4 is course aggregates, we calculate it in 1 Cum of concrete easily. first calculate the dry material of 1 Cum concrete and then multiply it with the ratio of material and divided it to 7... 7 is the sum of 1+2+4...

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md.adiluddin

  • Dec 31st, 2014
 

inorder to calculate the quantities u should know the design mix proportion ratiao by volume.i.e IF M25 design mix then proportion ratio is1:1 1/2:3.so that we can calculate the quantity of diff materials

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Murugesan.A

  • Jan 6th, 2015
 

You can calculate easy. Take M25 grade for 1:1:2.    
(0.45/1*1440)=648 kg /m3



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dinesh yadav

  • Feb 19th, 2015
 

43.5/total sum of ratio=no. of cement bag

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subbu

  • Feb 24th, 2015
 

m20

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MADHUSUDHAN REDDY

  • Apr 6th, 2015
 

How to calculate 43.5 Mr Dinesh Yadav can you explain in details..thanks you

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shashi

  • May 23rd, 2015
 

ratio of m35 concrete

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Nuthan

  • Jul 9th, 2015
 

Yes this is ans we can conform that the cement is in which grade by this process take a pinch of cement sample and observe it smoothness if it is more fine then u can say itis m25grades like this all grades are known

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ADEBAYO

  • Aug 20th, 2015
 

Thanks for the contribution. Meanwhile, what does he 0.45 stand for? How did you arrive at 648kg/m3? i want to presume the 1440 is taken as the density of Cement.

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Md.Ali

  • Sep 3rd, 2015
 

M5=1:5:10
M10=1:4:6
M15=1:2:4
M20=1:1.5:3
M25:1:1:2
M30=1:1:2

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