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How To Calculate Quantities Of Materials For Concrete

Calculation Of Materials For Different Mix Ratio:

Quantity estimation of materials is essentially required in any construction works and quantity of materials depend on the mix proportions of the concrete. In our previous article, we have already discussed how to calculate bricks in a wall.  Today we will discuss how to calculate quantities of materials for different mix ratio of concrete. (Dry mix method)


We will calculate quantities of materials for 1 m3 concrete (By volume).

Let us assume the mix proportion is 1 : 2: 4 (cement:sand:stone =a:b:c)

Volume of wet concrete = 1 m3

Volume of dry concrete = 1 × 1.54 = 1.54 m3

What Is 1.54 Given Below:

Or You Can check out this article – What is 1.54 in Concrete Calculation.

Calculation For Cement:

Formula, Cement = (Volume of dry concrete/a+b+c) × a

= (1.54/a+b+c) × a = [(1.54/1+2+4)] × 1 = 0.22 cum

Now density of cement = 1440 kg/cum

Volume of cement = 0.22 ×  1440 =316.8 kg.

As we know, 1 bag of cement contains 50 kg of cement .

Cement bags required = 316.8/50 = 6.33 bags.

Calculation For Sand:

Formula,  Sand = (Volume of dry concrete/a+b+c) × b

= (1.54/a+b+c) × b = (1.54/1+2+4) × 2 = 0.44 cum.

Calculation For Aggregates:

Formula, Stone Chips = (Volume of dry concrete/a+b+c) × c

= (1.54/a+b+c) ×c  = (1.54/1+2+4) × 4 = 0.88 cum.

Calculation For Water Content:

Let us assume the water/cement ratio of the concrete is 0.45.

w/c = 0.45

Required water for 1 bag cement = 0.45 × 0.0353 = 0.0159 cum.

Where volume of 50 kg cement = 0.0353 cum

1 m3 water = 1000 Litre

Required water for 1 bag cement=0.0159 × 1000 = 15.9 Litre.

Required water for 6.33 bags cement = 6.33 × 15.9 = 101 Litre.

Summary:

Cement = 6.33 bags.

Sand = 0.44 cum

Aggregates = 0.88 cum

Water = 101 litre.

Note: Yield of concrete is considered as 67% &

Wastages of materials = 2%

You can use the same formula for different mix proportions such as 1:1.5:3 etc.

Here, we have used cubic meter unit but you can also calculate in cubic feet unit.

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Comments ( 61 )

  1. why we multiply wet concrete by 1.54

  2. Sir articles are very good. Please provide articles related to tender

  3. Sir can you explain why we multiply wet concrete by 1.54.

  4. Luzviminda B. Chang Si
    February 27, 2017 at 7:49 am

    Im no engnr wanted to lessen my expenses to renovate my house can you please help me …. Thank you so much

  5. Vry useful

  6. Vaibhav Gondaliya
    March 8, 2017 at 4:51 am

    What is cft

  7. We take volume 10 cum not 100cuf for rcc and pcc
    Or which unit is preferable feet or meter

  8. CHANRDA SEKHAR DAS
    March 19, 2017 at 6:15 pm

    thanks for given details information

  9. What is 1.54
    Please explain

  10. why we multiply wet concrete by 1.54?

  11. why we multiply wet concrete by 1.54

  12. Er jayant nagmoti
    April 13, 2017 at 9:12 am

    Very usefull info

  13. It is useful in civil engineering works

  14. Thanks to useful formula provided

  15. How to defined 1.54

  16. How can be calculate water content . And where the 0.0353 and 0.45 value can be taken .please describe me

  17. Arun Kumar Verma
    April 13, 2017 at 2:52 pm

    54percent ye samajh nahi aya. .

  18. Nice informations

  19. Such valuable information about taking quantities on concrete, it has more than enough Detailing.
    thanks

  20. Sir wht is 1.54 explain plz

  21. 1.54 mean, volume + shrinkage of concrete= 1 + 54%

  22. sir, it is very useful information But sir i have one dout plz clear this what is 0.0353 in water

  23. Engr. Muhammad Azim
    July 20, 2017 at 4:24 am

    Please Explained, what is 0.0353 in water?

  24. It’s okay, but I need also culculation of sand, cement and stones required in stone pitching

  25. What is .0352 sir please clear

  26. Vry nice correct answer

  27. Charles Muhigirwa
    August 23, 2017 at 6:16 pm

    Wonderful practice calculations. Keep it up

  28. In Note you have written “Yield of concrete is considered as 67%” what does that actually mean? Please elaborate.

  29. How to find aggregate and sand in Kg it is given in cum??

  30. sir please explain what is 0.353 which you multiply with 0.45 in calculation of water content .. please i need the answer will be very thankfull to you

  31. What if we have to calculate for different dimension like for L=5m, B=3m, T=1m, then? How to calculate??

  32. dear sir, thank you so much for this information, please upload how to calculate no of footing and coloumn in a roof slab??

  33. Please where do you get 1440kg/m3 from? And what’s meant by cum?

  34. How to calculate/use sand and aggregate in site , which is in cubic feet or cubic meter

  35. Thank you very much for this kind of articles.Its really useful .Thank you very much again.

  36. It is a nice crystal clear article,and very useful, thanks,

  37. How can be calculate the RCC Concrete

  38. You can calculate the total volume of stone required through using the formula given below:
    length x width x height = volume in cubic feet
    However, it could be quite difficult for a non-professional to calculate the total volume, therefore it would be best to hire a professional Brick & Stone Repointing service provider to do the job for you.

  39. Pls I need Box culvert analysis

  40. Thank you for your kind sharing. As a guideline, please advise on the nominal mix proportion by Volume for M40 would be 1 : ??? : ???
    The approximate quantities are
    Cement = ??? bags/cum of concrete
    Sand = ??? cft/cum
    Aggregate = ??? cft/cum Your kind sharing is very much appreciated

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