WHAT IS 33,43 AND 53 GRADE OF CEMENT||COMPRESSIVE STRENGTH BY CIVIL GURUJI
Channel: Civil Engineers Training Institute
Date: 2020-09-18

Topic : GRADES OF CEMENT AND ITS COMPRESSIVE STRENGTH
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Cement is one of the oldest binding materials used for construction. Be it buildings, bridges, skyscrapers, subways, or pipelines, good quality cement is paramount for world-class infrastructure. But how do you measure the quality of cement? Are there set parameters that distinguish high quality cement from low quality cement? Well, the answer is yes. You may have heard of terms like 33 grade cement or 53 grade cement. These are terms used for describing different grades of cement. A grade of cement indicates the strength of cement that is measured in Mega pascal (Mpa) or N/mm2. Cement is usually measured after 28 days of curing for a standard cube.

There are Three Main Grades of Cement.
33 Grade Ordinary Portland Cement

33 grade cement refers to cement that has a compressive strength of 33 N/mm2 at the end of 28 days of curing. As per the Cement Association of Canada, all cement used in concrete construction in Canada is manufactured to meet the requirements of the CSA A3000 compendium of cement standards. This type of cement is used for general construction work under normal environmental condition.

43 Grade Ordinary Portland Cement

43 grade cement refers to cement that has a comprehensive strength of 43 N/mm2 at the end of 28 days of curing. It gets this grade only after it meets the requirements of the Cement Association of Canada. This type of cement is used for plain concrete work and plastering works.

53 Grade Ordinary Portland Cement

53 grade cement refers to cement that has a compressive strength of 53 N/mm2 at the end of 28 days of curing. As per the Cement Association of Canada, all cement used in concrete construction in Canada is manufactured to meet the requirements of the CSA A3000 compendium of cement standards. Unlike other grades of cement, 53 grade ordinary portland cement is used for structural purposes as in reinforced cement concrete.

Every grade of cement is suitable for different set of tasks as each of them have varying levels of strength. Using the wrong strength levels for a particular job can affect your overall structural design. In the world of construction, most professionals opt for 53 grade cement.

Even at Eilers construction, we use superior grade cement for all our projects. If you are looking out for professionals in the field of concrete construction, reach out to us and we’ll help you build whatever you have in mind.
Cement is mainly classified depending on their grades. Cement grades determine the compression strength (Mpa) of the concrete that will attain after 28 days of setting. There are about ten types of cement that are used for construction purpose. However, the following are the five main types of cement which are widely used in house construction.

1. Ordinary Portland Cement (OPC) 43 Grade Cement:
It is used majorly for wall plastering works, Non-RCC structures, pathways etc. 43-grade cement attains a compression strength of 43 Mpa (megapascals) in 28 days of setting. Make sure that your 43 cement brand adheres to IS 12269 standard code.

2. Ordinary Portland Cement (OPC), 53 Grade Cement:
It is mainly used in RCC and pre-stressed concrete of higher grades, cement grouts, instant plugging mortars etc. 53 Grade cement is used for fast paced construction were the initial strength is to be achieved quickly. 53 Grade attains 27 Mpa in 7days compared to 23 Mpa by 43-grade cement. 53 Grade cement adheres to IS 8112 standard code.