How To Calculate Quantities Of Materials For Concrete

Contents

Calculation Of Materials For Different Mix Ratio

Quantity estimation of building materials is essentially required in any construction work and the quantity of materials depends 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 concrete mix ratios. (Dry mix method)

We will calculate quantities of materials for 1 m3 of 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?

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/cu.m

• 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 cu.m.

Calculation For Aggregates

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

• = (1.54/a+b+c) ×c  = (1.54/1+2+4) × 4 = 0.88 cu.m.

Calculation For Water Content

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

• w/c = 0.45
• Required water for 1 bag cement = 0.45 × 0.0353 = 0.0159 cu.m.

Where volume of 50 kg cement = 0.0353 cu.m

• 1 m3 water = 1000 Litre

Required water for 1 bag of 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.

67 thoughts on “How To Calculate Quantities Of Materials For Concrete”

1. why we multiply wet concrete by 1.54

• this was very useful… thanking u

• I have explained, What is 1.54. Now you can check it in the article.

• It’s dry volume of concrete. We multiply 1.54 due to voids present in it.

• Due to content of water in dry material automatically dry material reduces to 50 to 55 percent so we add it 54 percent in to dry material.

• Absolutely awesome thx Guys

• plaster 12 mm thik for ratio 1:6
Proses send me

• What is the density of sand and aggregate

• It’s was the dry volume denisty fix value

• 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

• Thank you so much much for the detailed information

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.

• its the matter of dry wt and wet wt

4. 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. What is cft

• cft means Cubic-Feet.

• Cubic feet

• Very Useful sir good

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

8. thanks for given details information

9. What is 1.54

• Explained, What is 1.54. You can check it in the article.

10. why we multiply wet concrete by 1.54?

11. why we multiply wet concrete by 1.54

• I have explained, What is 1.54. Now you can check it in the article.

12. 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

• .45 is water/cement proportion and .035m3 is the vol. Of cement bag

17. 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

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

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

• Volume of 50kg cement bag

23. 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

• volume of cement=mass/density…(50kg/1440kg/m3)=0.0347cum

27. 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

41. Thank you so much, this was a very useful material.

42. Concrete ratio and the quantity of material involved in the formation of the concrete what civil engineer as the fresher dont know these days , i recommend them to read your article well written and they can easily learn from here and sharpen their skills for the interview.

43. Admin let’s calculate quantity of these ingredients using different dimensions
Like casting a slab of about 10m*5m*0.125m
Now how we use that 54%?