What Is Opc 53 Grade Cement?

What Is Opc 53 Grade Cement
53 Grade Ordinary Portland Cement (OPC 53) – This grade was introduced in the country by BIS in the year 1987 and commercial production started from 1991. Advent of this grade in the country owes it to the improved technology adopted by modern cement plants. OPC 53 Grade cement is required to conform to BIS specification IS:12269-1987 with a designed strength for 28 days being a minimum of 53 MPa or 530 kg/sqcm.53 Grade OPC provides high strength and durability to structures because of its optimum particle size distribution and superior crystallized structure.

Being a high strength cement, it provides numerous advantages wherever concrete for special high strength application is required, such as in the construction of skyscrapers, bridges, flyovers, chimneys, runways, concrete roads and other heavy load bearing structures. Not only is this grade of cement stronger than other grades / types, it is also more durable.

Further, by substituting lower grade cement with OPC 53, overall savings can be obtained through reduced quantity of cement that would be required to be used. A savings of 8-10% can be achieved with the use of 53 Grade OPC in place of any other grade.53 Grade cement attains higher early strength as compared to any other grade of cement but because of early gain, does not increase much after 28 days.

  1. In addition, due to faster hydration process, the cement releases heat of hydration at a much faster rate initially and therefore, the chances of micro cracking of concrete is much greater.
  2. Thus, during initial setting period of concrete, the higher heat of hydration can lead to damage arising out of micro cracks with in the concrete structure, which may not be visible on the surface.
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The situation can be worsened when construction supervisors / masons tend to increase the quantity of cement in concrete with a wrong notion that such increases are better for both strength and durability of concrete. Grade 53 should therefore be used only where such application is warranted for making the concrete of higher strength, where good supervision and quality assurance measures are in place and where proper precautions are taken to relieve the higher heat of hydration through a proper curing process.

What is OPC cement made of?

What is PPC Cement & OPC Cement? – PPC Cement: Pozzolana is a natural or artificial material which contains silica in the reactive form. Portland Pozzolana Cement is cement manufactured by combining Pozzolanic materials. This cement comprises of OPC clinker, gypsum and pozzolanic materials in certain proportions.

The Pozzolanic materials include fly ash, volcanic ash, calcined clay or silica fumes. These materials are added within a range of 15% to 35% by cement weight. OPC Cement or Ordinary Portland Cement (OPC) is manufactured by grinding a mixture of limestone and other raw materials like argillaceous, calcareous, gypsum to a powder.

33 Grade vs 43 Grade vs 53 Grade of Cement

This cement is available in three types of grades, such as OPC 33 grade, OPC 43 grade and OPC 53 grade. OPC is the most commonly used cement in the world. This type of cement is preferred where fast pace of construction is done. However, the making of OPC has reduced to a great extent as blended cement like PPC has advantages, such as lower environmental pollution, energy consumption and more economical.

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What is 53 grade cement?

What is 53 Grade Cement? 53-grade cement is an ordinary Portland Cement (OPC), which is the most widely used cement in India.53-grade cement attains 27 MPa (compression strength) in 3 Days.

What is the compressive strength of 53 grade OPC?

As per BIS requirements the minimum 28 days compressive strength of 53 grade OPC should not be less than 53 Mpa. Therefore, there is a vast difference in setting time of these cements.

What grade of OPC cement is the most durable?

Durability of 53 Grade OPC Cement – The base created using this cement is the most durable. Crustylzed structure with an optimum particle size makes it perfect for the long lasting commercial or residential structure. The right mix of Alumina, Iron, Calcium and Silica further aids in extending the required strength in the cement.

What is the grade of OPC 43 cement?

Two Grades of cement are available.

  1. OPC,43 Ordinary Portland cement 43 Grade.
  2. OPC,53 Ordinary Portland cement 53 grade.

What Is Opc 53 Grade Cement Below is the detail that defines the grades of cement. OPC stands for Ordinary Portland Cement and is graded as per their strength. The grade specifies the compression forte (mpa) of the concrete that will achieve after 28 days of setting. It is formed by a crushing clinker with the appropriate quantity of gypsum to the desired distinction.

  • Produces extremely robust and sound concrete because of the low proportion of alkalis, chlorides, magnesia, and lime in its configuration.
  • Nearly insignificant chloride content results in limiting corrosion of concrete edifice in intimidating atmospheres.
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What is the compressive strength of 53 grade OPC?

As per BIS requirements the minimum 28 days compressive strength of 53 grade OPC should not be less than 53 Mpa. Therefore, there is a vast difference in setting time of these cements.

What is OPC 53 used for in construction?

2.43 Grade Cement – OPC 43 is used for general RCC construction where the grade of concrete is up to M30. It is also used for the construction of precast items such as blocks, tiles, asbestos products like sheets and pipes, and for non-structural works such as plastering, flooring, etc.

What are the uses of 53 grade Portland cement?

OPC 53 Grade: – The 53 Grade portland cement is not used for ordinary construction works. It is generally used where high strength is needed such as RCC Bridges, Dams, construction of high-rise buildings, construction of sleepers (for railway), etc.