In this world of modern design of structures, Concrete acts as the back bone of civil engineering. A structural engineer’s aim is to build an efficient and durable concrete structure that is also aesthetically pleasing. Here comes the role of a designer. Concrete mix design is important because the proportions of the various ingredients in the mix determine the final properties and performance of the concrete.

If the mix design is incorrect, the mix may not have the desired strength, durability, or workability, which can lead to problems such as cracking and reduced resistance to external factors such as weather, fire, and impact.

For example, if too much water is used in the mix, the mix will be too wet and will have a lower strength. On the other hand, if too little water is used, the mix will be too dry and will be difficult to work with.

In short, the mix design determines the final quality of the concrete, and it is essential to follow mix design procedures and standards (IS- 10262 : 2009 and IS- 456 : 2000) to ensure that the mix meets the desired strength and performs as intended.

Before reading this post just go and check  "Concrete mix design procedure as per IS 10262:2009 & IS 456:2000"

What are the different design stipulations for the concrete mix design ?

This post will help you to have a brief idea of the different parameters required and will also make you aware of the different exp. data required to do the mix design. The different design stipulations required for the desired mix are shown in the table below

The different experiemental data required for the desiered mix are shown in the table below

Step by step procedure for concrete mix design of M30 grade as per Indian standards

The detailed step by step procedure for concrete mix design of M30 grade, according to IS – 10262:2009 and IS- 456:2000 is given below:

• Mean compressive strength: Calculate the target mean compressive strength at 28 days

Where sufficient test results for a particular grade of concrete are not available, the value of standard deviation could be taken from Table 1 of IS10262.

• Water cement ratio: In this step we select maximum water/cement ratio, which should be selected as per Table 5 of IS – 456: 2000.

• Entrapped air: For the maximum size of aggregate used the air content is estimated.

• Water content and fine to total aggregate ratio: The selection of water content is based on Table 2 of IS:10262:2009. Maximum water content for 20 mm aggregate and a slump value of 25 to 50 mm = 186.0 l. But in our problem the value of slump is 100 mm, so we need to alter the water content.

• Cement content: The cement content per unit volume of concrete is computed sing Table 5 of IS:456:2000:

Check  300 kg/ m3 < 438.13 kg / m3 < 450 kg/ m3 Hence O.K.

• Aggregate content: Volume of coarse aggregate per unit volume of total aggregate corresponding to 20 mm maximum size and zone I of fine aggregate = 0.60 – Table 3 of IS- 10262:2009.

Correction on volume of different ingredients

Hence Volume of

$$
V=\left[W+\left(C / S_{c}\right)+(1 / P) \cdot\left(f_{a} / S_{f a}\right)\right] \times(1 / 1000)
$$

$$
C_{a}=1- P / P \times f_{a} \times S_{ca}/ S_{fa}
$$

Computation of actual quantities required for a concrete mix – Trial mix

Water Correction

Extra quantity of water to be added

Concrete Mix Design

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Mix design Result

Concrete Mix Design Just In One Click

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In order to check the efficiency of the designed concrete mix we shall prepare different trial mixes and the same are tested to check the strength and workability of designed concrete mix. If the designed concrete mix fails to meet the desired properties then minor adjustment is done in the water cement ratio and aggregate quantities, then again the trial mixes are prepared.

Conclusions:

In conclusion, the calculation of M30 concrete mix design according to IS 10262:2009 and IS 456:2000 standards is a crucial step in the design process. The mix design ensures that the concrete has the right proportion of ingredients, including cement, water, sand, and aggregate, to achieve the desired strength and workability.

In this post, you learned the following key points:

• Concrete mix design: The proportions of the various ingredients in the mix determine the final properties and performance of the concrete.
• Indian standard code: Follow IS – 10262:2009 and IS- 456:2000 to do the concrete mix design efficiently.
• Concrete mix design application : You can do the concrete mix design in just one click using the concrete mix design application.

Hope this post helped you to learn the step by step procedure for concrete mix design using IS code ( IS – 10262: 2009 and IS – 456: 2000)

Just go and check this post to know the procedure of "concrete mix for high grade concrete". 

Concrete Mix Design

• Calculate cement, sand and aggregate quantity in concrete. 
• Calculate the number of premix bags required for your project.
• Option to set your own size and rate of premix bags.
• Calculate the volume of concrete required for slabs, walls, footings and columns.
• Calculate the weight of ingredients required for preparing the calculated volume of concrete.

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This article was crafted by a group of experts at eigenplus to ensure it adheres to our strict quality standards. The individuals who contributed to this article are:

Author

Meenu Krishnan

PhD

She is a research associate working to get a doctorate in computational mechanics.

Editors

Abhinav Gupta

PhD

Kamal Patel

PhD