What is IS 10262 code 2019 and why you need it
If you are involved in the construction industry, you must have heard of IS 10262 code. It is a standard published by the Bureau of Indian Standards (BIS) that provides guidelines for proportioning concrete mixes as per the requirements using the concrete making materials including other supplementary materials identified for this purpose. The standard covers various aspects of concrete mix design, such as initial data, target strength, water-cement ratio, water content, aggregate content, admixtures, air content, workability, durability, and quality control.
IS 10262 code was first published in 1982 and subsequently revised in 2009. In December 2019, the BIS released the second revision of the standard with some major modifications and additions. The latest version of the standard is divided into five sections, each dealing with a specific type of concrete mix design. The standard also provides illustrative examples and annexes for better understanding and application.
is 10262 code 2019 pdf download
In this article, we will give you a comprehensive guide on what IS 10262 code 2019 is and how you can use it for designing concrete mixes for your projects. We will also show you how to download IS 10262 code 2019 pdf for free from various sources. Finally, we will highlight some benefits of using IS 10262 code 2019 for concrete mix design.
IS 10262 code 2019: A comprehensive guide for concrete mix design
IS 10262 code 2019 is a standard that provides the guidelines for proportioning concrete mixes as per the requirements using the concrete making materials including other supplementary materials identified for this purpose. The standard applies to ordinary and standard grades of concrete (M 10 to M 55), high strength grades of concrete (M 65 or above), self compacting concrete, and mass concrete.
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is annexures of is code of practice for concrete mix design as per IS:10262:2000 and IS:456:2000. The annexures include the following: A) Selection of water-cement ratio B) Selection of water content C) Estimation of coarse aggregate content D) Estimation of fine aggregate content E) Adjustment for moisture content F) Adjustment for admixture dosage G) Trial mix and final mix H) Workability and consistency tests I) Compressive strength tests J) Durability tests K) Quality control and acceptance criteria L) Mix design data sheet M) Mix design report N) Mix design flow chart O) Mix design software P) Mix design spreadsheet Q) Mix design calculator R) Mix design online S) Mix design app T) Mix design book
The standard is divided into five sections, each dealing with a specific type of concrete mix design. The sections are as follows:
Section 1: General
Section 2: Ordinary and standard grades of concrete
Section 3: High strength grades of concrete
Section 4: Self compacting concrete
Section 5: Mass concrete
Let us look at each section in detail.
Section 1: General
This section covers the scope, objectives, and definitions of the standard. It also specifies the initial data that should be provided for mix proportioning, such as grade designation, type and grade of cement, type and size of aggregate, maximum nominal size of aggregate, type and dosage of admixture, exposure condition, degree of supervision, workability, etc.
This section also defines the target mean strength for mix proportioning formula as:
Target mean strength = Characteristic compressive strength + (Standard deviation x Factor based on grade of concrete)
This section also gives the formula for calculating the water-cement ratio as:
Water-cement ratio = (Water content in kg) / (Cement content in kg)
This section also gives the formula for calculating the cement content as:
Cement content = (Water content x Cementitious material factor) / (Water-cement ratio)
This section also gives the formula for calculating the aggregate content as:
Aggregate content = Dry rodded unit weight x Volume of coarse aggregate
This section also gives the guidelines for adjusting the water content, cement content, and aggregate content for various factors, such as moisture content, air content, admixture dosage, etc.
Section 2: Ordinary and standard grades of concrete
This section covers the mix proportioning procedure for M 10 to M 55 grades of concrete. It provides the tables for selecting the water-cement ratio and water content based on the exposure condition, workability, and maximum nominal size of aggregate. It also provides the tables for selecting the volume of coarse aggregate based on the type and size of aggregate, zone of fine aggregate, and maximum nominal size of aggregate.
This section also provides an illustrative example for mix proportioning of M 25 grade of concrete using 43 grade ordinary Portland cement, 20 mm maximum nominal size of coarse aggregate, zone II fine aggregate, and a superplasticizer. The example shows the steps for calculating the target mean strength, water-cement ratio, water content, cement content, and aggregate content.
Section 3: High strength grades of concrete
This section covers the mix proportioning procedure for M 65 or above grades of concrete. It provides the guidelines for selecting the type and grade of cement, type and size of aggregate, type and dosage of admixture, water-cement ratio, water content, cement content, and aggregate content. It also provides the tables for selecting the volume of coarse aggregate based on the type and size of aggregate, zone of fine aggregate, and maximum nominal size of aggregate.
This section also provides an illustrative example for mix proportioning of M 75 grade of concrete using 53 grade ordinary Portland cement, 12.5 mm maximum nominal size of coarse aggregate, zone II fine aggregate, a superplasticizer, and a silica fume. The example shows the steps for calculating the target mean strength, water-cement ratio, water content, cement content, and aggregate content.
Section 4: Self compacting concrete
This section covers the mix proportioning procedure for self compacting concrete. It provides the guidelines for selecting the type and grade of cement, type and size of aggregate, type and dosage of admixture, water-powder ratio, water content, powder content (cement + mineral admixture), and aggregate content. It also provides the tables for selecting the volume of coarse aggregate based on the type and size of aggregate and zone of fine aggregate.
This section also provides an illustrative example for mix proportioning of self compacting concrete using 53 grade ordinary Portland cement, 10 mm maximum nominal size of coarse aggregate, zone II fine aggregate, a superplasticizer, a viscosity modifying agent (VMA), and a fly ash. The example shows the steps for calculating the target mean strength, water-powder ratio, water content, powder content, and aggregate content.
Section 5: Mass concrete
This section covers the mix proportioning procedure for mass concrete. It provides the guidelines for selecting the type and grade of cement, type and size of aggregate, type and dosage of admixture, water-cement ratio, water content, cement content, and aggregate content. It also provides the tables for selecting the volume of coarse aggregate based on the type and size of aggregate and zone of fine aggregate.
This section also provides an illustrative example for mix proportioning of mass concrete using 43 grade ordinary Portland cement with fly ash replacement (15%), 40 mm maximum nominal size of coarse aggregate (crushed granite), zone II fine aggregate (river sand), a superplasticizer (0.8%), a retarder (0.1%), and an air entraining agent (0.05%). The example shows the steps for calculating the target mean strength, water-cement ratio, water content, cement content, and aggregate content.
How to download IS 10262 code 2019 pdf for free
If you want to download IS 10262 code 2019 pdf for free, you have several options. Here are some of them:
You can visit the official website of the Bureau of Indian Standards (BIS) and search for the standard using the keyword "IS 10262". You will find the link to download the pdf file of the standard. However, you will need to register and login to the website before you can download the file.
You can also visit some third-party websites that offer free downloads of various standards, such as . You can search for the standard using the keyword "IS 10262" and download the pdf file from the links provided. However, you should be careful about the authenticity and quality of the files downloaded from these websites.
You can also use some online tools or software that can convert web pages into pdf files, such as . You can copy and paste the URL of the web page that contains the standard into these tools and download the pdf file generated by them. However, you should be aware that some formatting or content may be lost or altered during the conversion process.
Whichever option you choose, you should always check the pdf file for any errors or discrepancies before using it for your projects.
Benefits of using IS 10262 code 2019 for concrete mix design
Using IS 10262 code 2019 for concrete mix design has many benefits for your projects. Some of them are:
It ensures that you use the appropriate materials and proportions for your concrete mixes based on the requirements and specifications of your projects.
It helps you achieve the desired strength, workability, durability, and economy of your concrete mixes.
It reduces the risk of failure or defects in your concrete structures due to improper mix design or quality control.
It enhances your reputation and credibility as a professional and competent contractor or engineer in the construction industry.
It complies with the national and international standards and regulations for concrete mix design and construction.
Conclusion
In this article, we have given you a comprehensive guide on what IS 10262 code 2019 is and how you can use it for designing concrete mixes for your projects. We have also shown you how to download IS 10262 code 2019 pdf for free from various sources. Finally, we have highlighted some benefits of using IS 10262 code 2019 for concrete mix design.
We hope that this article has been helpful and informative for you. If you have any questions or feedback, please feel free to contact us. We would love to hear from you.
Thank you for reading and happy mixing!
FAQs
Here are some frequently asked questions related to IS 10262 code 2019:
What is the difference between IS 10262 code 2009 and IS 10262 code 2019?
The main difference between IS 10262 code 2009 and IS 10262 code 2019 is that the latter has some major modifications and additions in terms of scope, objectives, definitions, initial data, sections, tables, examples, annexes, etc. The latest version of the standard covers various types of concrete mix design, such as ordinary and standard grades of concrete (M 10 to M 55), high strength grades of concrete (M 65 or above), self compacting concrete, and mass concrete.
What are the advantages of using self compacting concrete?
Self compacting concrete is a type of concrete that can flow and fill the formwork without any external vibration or compaction. It has many advantages over conventional concrete, such as improved workability, reduced noise and labor cost, enhanced durability and quality, reduced segregation and bleeding, increased speed of construction, etc.
What are the factors that affect the water-cement ratio?
The water-cement ratio is the ratio of the weight of water to the weight of cement in a concrete mix. It affects the strength, workability, durability, and economy of the concrete. The factors that affect the water-cement ratio are: - The grade of concrete: Higher grades of concrete require lower water-cement ratios to achieve the target strength. - The type and grade of cement: Different types and grades of cement have different water requirements and hydration rates. Generally, higher grades of cement require lower water-cement ratios than lower grades of cement. - The type and size of aggregate: Different types and sizes of aggregate have different water absorption and surface area characteristics. Generally, larger and less porous aggregates require lower water-cement ratios than smaller and more porous aggregates. - The exposure condition: Different exposure conditions have different durability requirements for the concrete. Generally, more severe exposure conditions require lower water-cement ratios than less severe exposure conditions. - The workability: Workability is the ease with which the concrete can be mixed, placed, compacted, and finished. Generally, higher workability requires higher water-cement ratios than lower workability. - The admixtures: Admixtures are substances that are added to the concrete to modify its properties. Some admixtures, such as superplasticizers, can reduce the water-cement ratio without affecting the workability. Some admixtures, such as retarders, can increase the water-cement ratio without affecting the strength.
What are the advantages of using fly ash in concrete?
Fly ash is a by-product of coal combustion that can be used as a partial replacement of cement in concrete. It has many advantages over conventional concrete, such as improved workability, reduced heat of hydration, enhanced durability and quality, reduced permeability and shrinkage, increased resistance to sulphate attack and alkali-silica reaction, reduced carbon footprint, etc.
What are the quality control measures for concrete mix design?
Quality control measures for concrete mix design are the steps that are taken to ensure that the concrete mix meets the specified requirements and standards. Some of the quality control measures are: - Testing the materials for their physical and chemical properties, such as specific gravity, fineness, moisture content, etc. - Testing the fresh concrete for its workability, air content, temperature, etc. - Testing the hardened concrete for its strength, durability, density, etc. - Sampling and testing the concrete at various stages of production, transportation, placement, compaction, curing, etc. - Maintaining proper records and reports of the test results and observations.
How to cite IS 10262 code 2019 in your references?
If you want to cite IS 10262 code 2019 in your references, you can use the following format:
Bureau of Indian Standards (BIS). (2019). Indian Standard Concrete Mix Proportioning - Guidelines (Second Revision). New Delhi: BIS. 44f88ac181
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