How much Cement, Sand, and Aggregate required for M25 concrete

Hello, Welcome to you in another new article, today we are going to know in this article how much cement sand and aggregate are required for M25 grade concrete. In this article, We will also know how much cement, sand, and aggregate is required for 1 cubic meter of M25 grade concrete.

The most commonly used material in any construction is concrete, but the same type of concrete is not used for all types of construction. Concrete is classified into different grades based on the mix ratio of cement, sand, and aggregate to be mixed in it.

What is Concrete Grade

Concrete strength measured after 28 days of any concrete construction is called concrete grade. The concrete grade is determined on the basis of the ratio of substances added to the concrete and the strength of the concrete. Generally, concrete grades are classified into 3 parts which are as follows.

  • Normal/ Nominal grade of Concrete
  • Standard-grade of Concrete
  • High-strength grade Concrete

Normal/ Nominal grade concrete

Normal or nominal grade concrete is used for small constructions, Nominal mix grade concrete includes M5, M7.5, M10, M15, and M20 grades of concrete.

Normal grade concrete mix ratio and their compressive strength

Concrete Grademix ratio of concreteCompressive StrengthCompressive Strength (psi)
M51:5:105 N/mm2725 psi
M7.51:4:87.5 N/mm21087 psi
M101:3:610 N/mm21450 psi
M151:2:415 N/mm22175 psi
M201:1.5:320 N/mm22900 psi
Nominal grade concrete mix ratio and their compressive strength chart

Standard Grade of Concrete

The compressive strength of standard-grade concrete is higher than the compressive strength of normal-grade concrete. Usually, M25, M30, M35, M40, and M45 grades of concrete come under the standard grade.

Standard grade concrete mix ratio and their compressive strength

Concrete Grademix ratio of concreteCompressive StrengthCompressive Strength (psi)
M251:1:225 N/mm23625 psi
M30Design mix30 N/mm24350 psi
M35Design mix35 N/mm25075 psi
M40Design mix40 N/mm25800 psi
M45Design mix45 N/mm26520 psi
Standard grade concrete mix ratio and their compressive strength chart

High strength grade/ Design mix grade concrete

According to IS, code 456, high-strength grade concrete is used keeping in mind various parameters and the compressive strength of high strength concrete is more than the rest of the grade concrete.

High Strength grade concrete mix ratio and their compressive strength

Concrete Grademix ratio of concreteCompressive StrengthCompressive Strength (psi)
M50Design mix50 N/mm27250 psi
M55Design mix55 N/mm27975 psi
M60Design mix60 N/mm28700 psi
M65Design mix65 N/mm29425 psi
M70Design mix70 N/mm210150 psi
High Strength grade concrete mix ratio and their compressive strength chart

How much Cement, Sand, and Aggregate required for 1m3 of M25 grade concrete

M25 grade concrete
Cement, sand, and aggregate required for 1m3 M25 concrete

M25 grade concrete is very useful concrete for structures requiring medium strength. In M25 grade concrete M represents the mix ratio in the grade of concrete while number 25 represents the compressive strength that the concrete holds after 28 days of curing.

M25 mix ratio has a special mix ratio that is 1:1:2, in which 1 part cement, 1 part sand, and 2 part aggregate.

The unit weight of 1 cubic meter of concrete is 2400 to 2500 kg per meter approximately. Where 2400 kg per meter is for PCC and 2500 kg for RCC. Since there is a reinforcement bar in RCC. That’s why RCC weighs more than PCC.

Now, we have to calculate the cement, sand, and aggregate required for 1m3 M25 grade concrete.

The wet volume of concrete = 1m3.

M25 grade concrete mix ratio = 1:2:2.

We have the wet volume of concrete. But to find out the actual quantity of cement, sand, and aggregate present in the M25 grade concrete, we have to convert the wet volume to dry volume.

To convert weight volume to dry volume, we need to multiply the weight volume by 1.54. This is because dry concrete has small pores and the air is filled in them. But when water is added to the dry concrete, the pores in the concrete and all the air are expelled from the concrete and the volume of the concrete is reduced by 54%.

So, dry volume of concrete = wet volume of concrete × 1.54
= 1 × 1.54 = 1.54 m3.

How much Cement is required for 1m3 of M25 grade concrete

Cement density = 1440 kg/m3.

Part of cement in mix = cement part/total mix ratio
= 1/ (1+1+2)
= 1/4.

Cement volume in concrete = cement part × total volume of dry concrete
= (1/4) × 1.54 m3.
= 0.385 m3.

Required cement for M25 grade of concrete in 1m3 = Cement volume in concrete × cement density

= 0.385 m3 × 1440 kg/m3.
= 554.4 = 554 kg.

Hence, 1 bag of cement contains 50 kg, then 554/50 = 11.08 = 11 bags.

So, 11 bags of cement are required for 1 cubic meter of M25 grade concrete.

How much Sand is required for 1m3 of M25 grade concrete

Sand density = 1620 kg/m3.

Part of sand in mix = sand part/total mix ratio
= 1/ (1+1+2)
= 1/4.

Sand volume in concrete = sand part × total volume of dry concrete
= (1/4) × 1.54 m3.
= 0.385 m3.

Required Sand for M25 grade of concrete in 1m3 = Sand volume in concrete × Sand density

= 0.385 m3 × 1620 kg/m3.
= 623.7 = 624 kg.

Hence, 1 CFT = 35.314 kg, then 624/35.314 = 17.67 = 18 bags.

So, 18 CFT sand is required for 1 cubic meter of M25 grade concrete.

How much Aggregate is required for 1m3 of M25 grade concrete

Aggregate density = 1550 kg/m3.

Part of Aggregate in mix = Aggregate part/total mix ratio
= 2/ (1+1+2)
= 2/4.

Aggregate volume in concrete = aggregate part × total volume of dry concrete
= (2/4) × 1.54 m3.
= 0.77 m3.

Required Aggregate for M25 grade of concrete in 1m3 = Aggregate volume in concrete × Aggregate density

= 0.77 m3 × 1550 kg/m3.
= 1193.5 = 1193 kg.

Hence, 1 CFT = 35.314 kg, then 1193/35.314 = 33.810 = 34 CFT.

So, 34 CFT Aggregate is required for 1 cubic meter of M25 concrete.

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Conclusion:

We have discussed in this article how much cement, sand, and aggregate are required for M25 grade concrete. If you have read this article well, then I hope that I have cleared all your doubts.

FAQ
How much Cement required for 1m3 of M25 concrete

554 kg or, 11 bags of cement is required for 1 cubic meter of M25 concrete.

How much Sand required for 1m3 of M25 grade concrete

For 1 cubic meter of M25 concrete, there are 624 kg or 18 CFT Sand required.

How much Aggregate is required for 1m3 of M25 concrete

For 1m3 M25 concrete, there are 1193 kg or 34 CFT aggregate required.

How much Cement required for 1m3 of M25 concrete in kg

There is 554 kg cement required for 1m3 M25 grade concrete.

How much Sand required for 1m3 of M25 concrete in kg

There is 624 kg sand required for 1m3 M25 grade concrete.

How much Aggregate required for 1m3 of M25 concrete in kg

For 1m3 M25 grade concrete, there is 1193 kg Aggregate required.

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