Concrete Mix Ratio | What Is Concrete Mix Ratio | Types 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

Also, read: Methods of Design | Difference Between Working Stress Method and Limit State Method

Type of Concrete Mix Ratio.

As Per IS Code 456-2000 three different part of Concrete Mix Ratio

  1. Nominal Concrete Mix Ratios.
  2. Standard Mixes Ratio.
  3. High Strength Concrete Mix Ratio.

M-15 Mix Design

1. 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 types of mix, this nominal concrete mix ratios and concrete constituent proportions are prefixed and specified.

2. Concrete Mix Formula Example

M 15 mixing concrete ratio of Concrete (1:2:4) here (1 no of Cement quantity, 2 nos of Send quantity, 4 nos of Aggregate quantity, Here quantity measured by mixing box) it also called recipes for concrete

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.

Different Types of Grade for Concrete Ratios as below.

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

Also, read: What Is Guniting, Set Guniting Systems , Advantage, Disadvantage

3. 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 rati0 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

Also, read:  What Is Cover in Concrete | Clear Cover in Beams, Slab, Column, Footing

4. 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 manually 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

Also, read: Difference Between Short Column and Long Column | What Is Column | Types of Column

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.


FAQ

Concrete Mix

A concrete mix is a combination of five major elements in various proportions: cement, water, coarse aggregates, fine aggregates (i.e. sand), and air. Additional elements such as pozzolanic materials and chemical admixtures can also be incorporated into the mix to give it certain desirable properties.

Concrete Mix Ratio

The safest bet for any concrete mix is four-two-one: four parts crushed rock; two parts sand; and one part cement. The four-two-one mix, obviously, has seven parts. Conveniently, when mixing concrete, the ratio can be mixed on any range of scales.

Cement Mixture Ratios

The safest bet for any concrete mix is four-two-one: four parts crushed rock; two parts sand; and one part cement. The four-two-one mix, obviously, has seven parts. Conveniently, when mixing concrete, the ratio can be mixed on any range of scales.

Concrete Mixture Formula

A properly designed 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 percent cement, 60 to 75 percent aggregate, and 15 to 20 percent water.

Concrete Mix Ratio

The safest bet for any concrete mix is four-two-one: four parts crushed rock; two parts sand; and one part cement. The four-two-one mix, obviously, has seven parts. Conveniently, when mixing concrete, the ratio can be mixed on any range of scales.

Cement Mix Ratios

A properly designed 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 percent cement, 60 to 75 percent aggregate and 15 to 20 percent water.

Cement Mixture Formula

The safest bet for any concrete mix is four-two-one: four parts crushed rock; two parts sand; and one part cement. The four-two-one mix, obviously, has seven parts. Conveniently, when mixing concrete, the ratio can be mixed on any range of scales.

Concrete Mix Ratios Table

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
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
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

How to Mix Concrete Ratio?

The safest bet for any concrete mix is four-two-one: four parts crushed rock; two parts sand; and one part cement. The four-two-one mix, obviously, has seven parts. Conveniently, when mixing concrete, the ratio can be mixed on any range of scales.

Concrete Mix Formula

The safest bet for any concrete mix is four-two-one: four parts crushed rock; two parts sand; and one part cement. The four-two-one mix, obviously, has seven parts. Conveniently, when mixing concrete, the ratio can be mixed on any range of scales.

Concrete Mix Ratio for Foundation

For foundations, a mix of 1 part cement to 3 parts sand to 6 parts aggregates can be used. Measure around half of the cement, sand and aggregates (for a concrete mix only) you’re going to mix. Using half now will prevent the mix from drying out before you get chance to use all of it – you can mix the other half later.

Strong Concrete Mix Ratio

In making concrete strong, these ingredients should usually be mixed in a ratio of 1:2:3:0.5 to achieve maximum strength. That is 1 part cement, 2 parts sand, 3 parts gravel, and 0.5 part water.

22 thoughts on “Concrete Mix Ratio | What Is Concrete Mix Ratio | Types of Concrete Mix Ratio”

  1. M30 Grade Concrete Need Ratio And Minimum Or Maximum Passing 10mm Chips And 20mm Aggregate What is The Shape 20mm aggregate 1st good quality Material.

    Reply
  2. Nice job explaining the different ratios. Not alot of actual ratios on the web im glad i found your website. Thanks

    Reply
  3. SAMPLE RATIO: 1:2:4
    1 = ONE BAG OF CEMENT = 40 LBS/BAG
    2 = TWO BOXES OF SAND
    4 = FOUR BOXES OF AGGREGATES
    MY QUESTION ; WHAT IS THE MEASUREMENT OF ONE BOX?

    Reply
  4. Great information. How much more strength with fibers (guess depends on quantiy, size and length) which have good air resistance (for aircrete). Thank you very much in advance for expected your valuable help.

    Reply
  5. I was searching for a concrete mixer. Thanks, admin, for sharing such wonderful content on this topic. Now I have got everything I need about it. Here’s another informative piece of content Concrete Mixer , you may find here more information.

    Reply

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