Concrete Mix Ratio | What Is Concrete Mix Ratio | Type of Concrete Mix Ratio
Civil Concrete Design

Concrete Mix Ratio | What Is Concrete Mix Ratio | Type of Concrete Mix Ratio

Concrete mix ratio

What Is Concrete Mix Ratio?

      • Making concrete, it is important to use the correct concrete mixing ratios to produce a tough, long life, durable concrete mix.
      • To make concrete, four basic materials you need: Cement, sand, aggregate, water, and add-mixture.
      • This concrete mix ratio of aggregate to sand to cement is an important factor in determining the compressive strength of the concrete mixture.
      • This concrete mixture ratio of 1 part cement, 1 parts sand, and 3 parts aggregate will produce a concrete mix of approximately 2500 to 3000 psi.
      • Mixing water with this cement, sand, and aggregate will form a paste that will bind the materials together until the mix hardens.
      • This strength properties of the concrete are inversely proportional to the water-cement ratio.
      • Basically, the means the more water you use to mix this concrete, the weaker the concrete mix.
      • This less water you use to mix the concrete, the stronger the concrete mix.
      • Accurate concrete mixing ratios may be achieved by measuring this dry material using buckets or some other kind of measuring device.
      • By measuring the mixing ratios, you will have a consistent concrete mix throughout your entire project.
      • Relevant Is Code: Is 456-2000 for Concrete mix ratio table 

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Type of Concrete Mix Ratio.

      • As Per IS Code 456-2000 three different part of Concrete Mix Ratio
        • Nominal Concrete Mix Ratios
        • Standard Mixes Ratio
        • High Strength Concrete Mix Ratio

M-15 Mix Design

Nominal Concrete Mix Ratios

        • The specifications for concrete prescribed these proportions of cement, sand, aggregates, and water.
        • These mixes of the fixed cement, sand, and aggregate ratio that ensures adequate strength are termed nominal mixes.
        • Nominal concrete mixes offer simplicity and under normal circumstances, have a margin of strength above that specified.
        • However, because of the variability of mix ingredients, the nominal concrete for given workability varies widely in strength.
        • This nominal mix ratio is generally adopted for small scale constructions.
        • In this type of mix, this nominal concrete mix ratios and concrete constituent proportions are prefixed and specified.
        • E.g., M15(1:2:4), the quantity of cement, sand (fine aggregate), and coarse aggregate are batched in volume as per the fixed ratio 1:2:4. From the above table till M25 grade, these concrete proportions are called as Nominal mix concrete.
Concrete Grade
Mix Ratio
Compressive Strength
MPa (N/mm2) psi
Normal Grade of Concrete
M5 1 : 5 : 10 5 MPa 725 psi
M7.5 1 : 4 : 8 7.5 MPa 1087 psi
M10 1 : 3 : 6 10 MPa 1450 psi
M15 1 : 2 : 4 15 MPa 2175 psi
M20 1 : 1.5 : 3 20 MPa 2900 psi

Concrete Mix Ratio Table For Nominal Concrete Mix Ratios

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Standard Concrete Mixes Ratio

        • Standard Mixes Ratio specifications for concrete prescribed these proportions of cement, sand, aggregates, and water.
        • Standard mixes of the fixed cement, sand, and aggregate ratio, which ensures adequate strength, are termed nominal mixes.
        • Standard mixes offer simplicity and under normal circumstances, have a margin of strength above that specified.
        • However, because of the variability of mix ingredients, the nominal concrete for given workability varies widely in strength.
        • This Standard mix ratio is generally adopted for small scale constructions.
        • In this type of mix, this nominal concrete mix ratios and concrete constituent proportions are prefixed and specified.
        • Standard concrete mixes ratio M30 to M45 grade concrete mix ratio is manual designed
        • E.g., M45, the quantity of cement, sand (fine aggregate), and coarse aggregate are batched in volume as per the design mix. From the above table till M45 grade, these concrete proportions are called as Nominal mix concrete.
Concrete Grade
Mix Ratio
Compressive Strength
MPa (N/mm2) psi
Standard Grade of Concrete
M25 1: 1: 2 25 MPa 3625 psi
M30 Design Mix 30 MPa 4350 psi
M35 Design Mix 35 MPa 5075 psi
M40 Design Mix 40 MPa 5800 psi
M45 Design Mix 45 MPa 6525 psi

Concrete Mix Ratio Table For Standard Concrete Mix Ratios

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High Strength Concrete Mix Ratio

        • High Strength Mixes Ratio specifications for concrete prescribed these proportions of cement, sand, aggregates, and water.
        • High Strength mixes of the fixed cement, sand, and aggregate ratio, which ensures adequate strength, are termed nominal mixes.
        • High Strength mixes offer simplicity and under normal circumstances, have a margin of strength above that specified.
        • However, because of the variability of mix ingredients, the nominal concrete for given workability varies widely in strength.
        • This High Strength mix ratio is generally adopted for small scale constructions.
        • In this type of mix, this nominal concrete mix ratios and concrete constituent proportions are prefixed and specified.
        • High Strength concrete mixes ratio M50 to M70 grade concrete mix ratio is manual designed
        • E.g., M70, the quantity of cement, sand (fine aggregate), and coarse aggregate are batched in volume as per the design mix.
Concrete Grade
Mix Ratio
Compressive Strength
MPa (N/mm2) psi
High Strength Concrete Grades
M50 Design Mix 50 MPa 7250 psi
M55 Design Mix 55 MPa 7975 psi
M60 Design Mix 60 MPa 8700 psi
M65 Design Mix 65 MPa 9425 psi
M70 Design Mix 70 MPa 10150 psi

Concrete Mix Ratio Table For High Strength Concrete Mix Ratios

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Concrete Design Mix Ratio Basic Info.

    • The design mixing ration of concrete because of suitable parts of ingredients of concrete determining the relevant amount of objective for producing a concrete of the required strength, workability and durability as economically possible is now as termed this mix design of concrete.
    • The difference in the cost of materials arises from the fact that the cement is several times costly than this aggregate; thus, the aim is to produce as lean a mix as possible.
    • Technical point of view, the rich mixes can lead to cracking and high shrinkage at the structural concrete and to the evolution of high heat of hydration in mass concrete, which may cause cracking.
    • The cost of concrete is related to this cost of materials required for producing a minimum mean strength called characteristic strength of specified by the designer of the structure.
    • This depends on the QC (Quality Control) measures, but there isn’t doubt that the QC (Quality Control) adds to the cost of concrete.
    • The extent of QC (Quality Control) is often an economic compromise and depends on the type and size job.
    • The cost of labor depends on the workability of mix design for concrete, e.g., the concrete mix design of inadequate workability may result in a high cost of labor to obtain a degree of compaction with available equipment.

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