Mix Ration of Concret

Concrete Mix Ratio | Concrete Ratio | Concrete Proportions | Concrete Mix Ratio Table | Concrete Grade Ratio | Concrete Mix Design Ratio9 min read

What Is Concrete Mix Ratio?

The Concrete Mix Ratio is the ratio of concrete ingredients like cement, fine aggregate (sand), coarse aggregate (gravel), and water. These mixing ratio are decided on the basis of the type of construction and the mixed designs of the materials.

However, Building Codes provide nominal and Standard Concrete Mix Ratios for various construction tasks based on experience and testing. For preparing good quality and durable concrete mix.

Concrete Mix Ratio | Concrete Ratio | Concrete Proportions | Concrete Mix Ratio Table | Concrete Grade Ratio | Concrete Mix Design Ratio
Concrete Mix Ratio

To make concrete, you’ll need four basic ingredients: cement, sand, aggregate, water, and additional mix. Concrete mix design is the method of determining the correct proportions of cement, fine aggregate (sand), and aggregates for concrete to achieve the target strength of prepared concrete mix.

The advantage of Concrete Mixture Design Calculation PDF is that it gives the correct ratio of materials, thus making concrete use economical in achieving the required strength of structural members.

Since the amount of concrete required for construction is huge, the economy in the number of materials such as cement makes project construction economical.


Different Concrete Mix Ratio

Concrete Mix Ratio | Concrete Ratio | Concrete Proportions | Concrete Mix Ratio Table | Concrete Grade Ratio | Concrete Mix Design Ratio
Nominal Mix And Design Mix

Concrete Mix Ratio Types are listed below,

  1. Nominal Concrete Mix Ratio
  2. Standard Mixes or Ratio
  3. Designed Mix Ratio of Concrete
  4. High Strength Concrete Mix Ratio

Read More: Concrete Mix Design | Concrete Mix Design Excel Sheet | Mix Design of Concrete | M25 Concrete Mix Design


1. Nominal Concrete Mix Ratio

In nominal mix concrete, the proportion of mixing are concrete ingredients are fixed and recommended by standard codes.

For M 15 grade of concrete mix, the ratio is 1:2:4, which means 1 part cement, 2 part sand and 4 part aggregate used to prepare concrete mix with water.

If you are using M 20 grade of concrete then you have to use a concrete mix ratio of 1:1.5:3. In which 1 is part of cement, 1.5 is part of sand, and 3 is part of cement.

Grade of ConcreteRatioCompressive StrengthCompressive Strength
(N per mm2)(psi)
Normal Grade Concrete
M-5(1):(5):(10)5725
M-7.5(1):(4):(8)7.51087
M-10(1):(3):(6)10 1450
M-15(1):(2):(4)15 2175
M-20(1):(1.5):(3)20 2900
Nominal mix ratio table

These mixtures of stable cement, fine aggregate (sand), and aggregate proportions which ensure sufficient strength are called nominal mixtures.

Nominal mix ratio concrete offers good strength and quality of concrete. Sometimes, Its quality gets compromised due to poor quality of mixing and improper amount of material added in concrete.

This is the standard mix ratio normally used for a small construction project where a grade of concrete is below M20 and quality standards are decent.


2. Standard Mix Concrete Ratio

Nominal admixtures of fixed cement-aggregate ratios (by volume) vary widely in strength and may result in more or less rich admixtures. For this reason, minimum compressive strength is included in many specifications. These mixtures are called standard mixtures.

IS 456-2000 designates concrete mixes in several grades as M10, M15, M20, M25, M30, M35, and M40. The letter M in this description refers to the mixture and the number of specified 28-day cubic strengths of the mixture in N/mm2.

Concrete GradeMix RatioCompressive StrengthCompressive Strength
MPa (N/mm2)psi
Standard
Grade Concrete
M251:1: 225 MPa3625 psi
M30Design Mix30 MPa4350 psi
M35Design Mix35 MPa5075 psi
M40Design Mix40 MPa5800 psi
M45Design Mix45 MPa6525 psi
Concrete Mix Ratio Table for Standard Mix Concrete

The mixtures of grades M10, M15, M20, and M25 are roughly equivalent in mixing ratios (1:3:6), (1:2:4), (1:1.5:3), and (1:1:2), respectively. The Tanned Mix Ratio Specifications for Concrete stipulated these ratios of cement, sand, aggregate, and water.

Standard mixtures of stable cement, fine aggregate (sand), and aggregate proportions, which ensure sufficient strength, are called nominal mixtures. Standard blends provide ease and, under normal conditions, have a margin of strength greater than specified.

In this type of mixture, the nominal solid mix ratio and the solid component ratio are prefixed and specified.

Standard Concrete Mix Ratio M30 to M45 grade concrete mix ratio is designed manually. For example, M45, cement volume, sand (fine aggregate), and coarse aggregate are batched in quantities according to the design mix. From the table above to the M45 grade, these concrete ratios are called nominal mix concrete.

Read More: Mix Design of Concrete | Concrete Mix Design | M 25 Mix Design | M 25 Concrete Ratio | M 25 Concrete Mix Design


3. Design Mix Ratio for Concrete

The performance of concrete in these mixes is specified by the designer but the mixing ratio is determined by the manufacturer of the concrete, except where a minimum cement content may be prescribed.

This is the most rational approach to the selection of mixing ratios with specific materials taking into account more or less specific characteristics. This approach results in the production of concrete with the most economically suitable properties.

However, the designed mix does not serve as a guide as it does not guarantee the correct mixing ratio for the prescribed performance. Nominal or standard mixes (determined in the code by the amount of dry material per cubic meter and slump).

For concrete with undemanding performance may only be used for very small jobs, when the 28-day strength of concrete is 30 does not exceed n/s. mm2. Depending on the mass of the material, no control test is necessary.


4. High Strength Concrete Mix Ratio

The high strength mix ratio specifications for concrete stipulate these ratios of cement, sand, aggregate, and water. High strength mixtures of stable cement, fine aggregate (sand), and aggregate ratios, which ensure sufficient strength, are called nominal mixtures.

High strength mixes provide ease and, under normal conditions, have a margin of strength above specified. However, due to the variability of the mixed material, the nominal concrete for given workability varies widely in strength.

Concrete GradeMix RatioCompressive StrengthCompressive Strength
MPa (N/mm2)psi
High Strength Concrete Grades
M50Design Mix50 MPa7250 psi
M55Design Mix55 MPa7975 psi
M60Design Mix60 MPa8700 psi
M65Design Mix65 MPa9425 psi
M70Design Mix70 MPa10150 psi
Concrete Mix Ratio Table for High Strength Concrete Grades

This high-strength mixing ratio is generally adopted for small-scale manufacturing. In this type of mixture, the nominal solid mix ratio and the solid component ratio are prefixed and specified.

High Strength Concrete Mix Ratio M50 to M70 grade concrete mix ratio is designed manually. For example, M70, cement, sand (fine aggregate), and coarse aggregate are batched in volumes according to the design mix.

Read More: Concrete Mix Design


Concrete Design Mix Ratio

Concrete Mix Design Ratio involving various components determines the required strength, workability, and durability of concrete, that too keeping mix as economical as possible.

The fact that the cement is several times costly than aggregate, contributes to the attribute of cost control of mix, which focuses on the production of a lean concrete mix.

Technically the rich mixes are prone to cracking and high shrinkage, because of the evolution of heat of hydration in large amount, which further cause cracking.

The cost of concrete is dependent on the cost of materials required to produce the mix, having a characteristic strength as specified by the designer of the structure.

The concrete mix design ratio depends on QC i.e. Quality Control measures, however, to obtain a quality mix cost of concrete increases. QC is often dependant on the type and size of the job.


FAQs

Concrete Mix Ratio

Concrete Mix Ratio is the ratio of concrete components like cement, sand, aggregates, and water to form a complete mix of desired properties. These mixing ratios are decided on the basis of the type of construction and the mixed designs of the materials.

Concrete Mix

concrete mix consists of the combination of five major elements such as cement, water, coarse aggregates, fine aggregates (i.e. sand), and air in specific proportion to obtain concrete of required grade. Other elements include pozzolanic materials and chemical admixtures incorporated into the mix to obtain certain desirable properties.

Concrete Mixture Formula

An accurately designed mixture possesses the required workability for the fresh concrete and the desired durability as well as the strength for the hardened concrete. A good mix is around 10 to 15 percent of cement, 60 to 75 percent aggregate, and about 15 to 20 percent water.

What is IS Code for Concrete Mix Design?

The Bureau of Indian Standards recommended a set procedure for the design of concrete mix mainly based on the work done in national laboratories. The Concrete Mix Design Calculation procedure is covered in IS 10262: 2019.

What is a 1:2:3 mix for concrete?

The ratio 1:2:3: can be elaborated as the mix contain 1 part cement, 2 parts sand, and 3 parts aggregate to form a complete concrete mix. 

What is the best ratio for concrete mix?

One of the best ratios for concrete mix is the mix with 1 part of cement, 3 parts of sand, and 3 parts of aggregate, this will produce on an average of a 3000 psi concrete mixture. The strength is suitable for most concrete slabs, footings, steps, and foundation walls.

Cement Mixture Ratios

Concrete Mix Ratio is the ratio of concrete components like cement, sand, aggregates, and water to form a complete mix of desired properties. These mixing ratios are decided on the basis of the type of construction and the mixed designs of the materials.

Cement Mix Ratios

A properly designed concrete mixture possesses the desired workability for the fresh concrete and the required durability and strength for the hardened concrete. Typically, a mix is about 10 to 15 % cement, 60 to 75% aggregate and 15 to 20 % water.

Mix Ratio of Concrete

Concrete Mix Ratio is the ratio of concrete components like cement, sand, aggregates, and water to form a complete mix of desired properties. These mixing ratios are decided on the basis of the type of construction and the mixed designs of the materials.


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