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Grades of Cement | Types of Cement Grades | Which Grade Cement Is Used for Slab

Grades of Cement

Important Point

  • Introduction of Cement
  • Introduction of OPC
  • Which Grade Cement Is Used for Slab
  • Types of Cement Grades
    • OPC (Ordinary Portland Cement) 33 Grade Cement
      • Properties of 33-Grade Cement
      • Uses of 33-Grade Cement
    • OPC (Ordinary Portland Cement) 43 Grade Cement
      • Properties of 43-Gradee Cement
      • Uses of 43 Grade Cement
    • OPC (Ordinary Portland Cement) 53 Grade Cement
      • Properties of 53 Grade Cement
      • Uses of 53 Grade Cement
    • Cement Grade
    • Grade of Cement
    • Grade Slab
    • What Is Grade of Concrete?
    • Cement Types and Grades
    • Grade of Cement Used in Building Construction
    • What Is Grade of Cement?
    • Cement Grading
    • Grades of Cement

Introduction of Cement

Cement is one of the most important engineering construction materials. It is widely used in the construction of various Structures.

It is the key ingredient of the concrete. Concrete is made by mixing sand, aggregate, and cement along with water in the fixed proportion. The Strength of the Concrete is mainly achieved by the Cement.

In this article, you will get to know about different grades of cement, their properties, and uses.

Introduction of OPC

OPC is one of the most important types and widely used cement in the Construction Industry. OPC Cement full form Ordinary Portland cement.

Ordinary Portland cement (OPC) is the commonly used cement around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout.

The Ordinary Portland Cement is mainly categorized into three types, which are 33-Grade Cement, 43-Grade Cement, and 53-Grade Cement. This grade of cement is classified depending upon the compressive strength of the cement, which is tested after 28 days.

Compressive Strength of Cement =( Apply Load / Unit Area)

The unit of compressive strength is N/mm2

Also, read: What Is Cement | Type of Cement

Which Grade Cement Is Used for Slab

Ordinary Portland cement of 53 Grade is suitable for all types of RCC structures and is mainly used for the construction of slabs. Because in the Construction of slabs, initial and ultimate strength is the major structural requirement.

The 53 Grade Cement is highly preferred for the construction of the structures which require high strength such as the construction of high rise building and bridges.

Types of Cement Grades

There are different grades of cement, which are specified by IS 1489: 1991 as below of cement grade list.

  • OPC 33 Grade Cement
  • OPC 43 Grade Cement
  • OPC 53 Grade cement

OPC 53

Also, read: Mortar Vs Cement | Type of Cement | Type of Mortar

OPC (Ordinary Portland Cement) 33 Grade Cement

The Cement, which has Compressive strength of 33 N/ mm2 after the 28 days when tested, is known as 33-Grade Cement.

Fineness (specific area) of 33 Grade Cement = 300 m2/kg

  • 3 days compressive strength = 16 N/mm2
  • 7 days compressive strength = 22 N/mm2
  • 28 days compressive strength = 33 N/mm2

Properties of 33-Grade Cement

  • This grade of cement has high workability and is mainly used for masonry work and for plastering work.
  • The initial strength of 33 Grade Cement continues to gain even after 28 days.
  • The heat of hydration of 33 Grade Cement is lower as compared to the 43 grade and 53-grade cement.

Uses of 33-Grade Cement

  • It is widely used in plastering work.
  • It is also used for the brickwork of walls.
  • In the tiling work.
  • It is generally used for work, which required low compressive strength of below M20.

The Code of reference for 33-grade cement is IS Code – IS 269: 1989.

43 Grade Cement

Also, read: Which Cement Is Best for House Construction | Different Types of Cement  and Use

OPC (Ordinary Portland Cement) 43 Grade Cement

The Cement, which has Compressive strength of 43 N/ mm2 after the 28 days when tested, is known as 43-Grade Cement. Fineness (specific area) of 43 Grade Cement = 225 m2/kg

  • 3 days compressive strength = 23 N/mm2
  • 7 days compressive strength = 33 N/mm2
  • 28 days compressive strength = 43 N/mm2

Properties of 43-Gradee Cement

  • It has low chloride content, so it doesn’t cause corrosion of steel reinforcement.
  • It gives good workability of concrete.
  • The initial strength of 43 Grade Cement continues to gain even after 28 days.
  • The heat of hydration of 43 Grade Cement is medium.
  • This will give a better surface finish to the structures.
  • It is moderately sulfate resisting.

Uses of 43 Grade Cement

  • It is used in the preparation of Ready Mix Concrete (RMC).
  • It is used for PCC and RCC work.
  • It is used in the construction of RCC bridges.
  • For Construction of Silos and Chimneys.
  • It is used for finishing of all types of structures like buildings, bridges, roads, and water retaining structures.
  • It is used in precast and prestressed concrete.
  • It is also used in Ship form Construction.
  • It is used in the construction where a grade of concrete up to M30.

The Code of reference for 43-Grade Cement is IS Code – IS 8112: 1989.

opc 53

Also, read: 23 Different Types Cements Available in India and As Per IS Standards

OPC (Ordinary Portland Cement) 53 Grade Cement

The Cement, which has Compressive strength of 53 N/ mm2 after the 28 days when tested, is known as 53-Grade Cement. Fineness (specific area) of 53 Grade Cement = 225 m2/kg

  • 3 days compressive strength = 27 N/mm2
  • 7 days compressive strength = 37 N/mm2
  • 28 days compressive strength = 53 N/mm2

Properties of 53 Grade Cement

  • It is a Sulphate resisting cement.
  • It has low chloride content.
  • It can be used in speedy Construction.
  • It saves shuttering cost due to early removal.
  • The initial strength of 53 Grade Cement continues to gain even after 28 days.

Uses of 53 Grade Cement

  • It is used the construction of concrete sleepers for Railways.
  • It is used in pre-stressed girders.
  • The 53-Grade Cement achieves early strength.
  • It is used in industrial buildings roads and runways.
  • It is used in the construction of RCC bridges and precast concrete.
  • Generally used for M25 and above concretes.
  • It is used in the construction of all RCC components like a beam, columns, footings, and slabs.

The Code of reference for 53-Grade Cement is IS Code – IS 12269: 1987.


Short Note

Cement Grade

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.

Grade of Cement

The strength gets further measured as the comprehensive strength, which is the moulded cement in the standard cube. After 28 days of curing, it gets estimated. The measurements are in Mega-Pascal or N/mm. Generally, there are three types of cement grades; 33-grade, 43-grade, and 53-grade.

Grade Slab

In construction, a grade slab is a relatively flat concrete structure built on top of the soil at ground level. This simple slab design differs from the reinforced slab technique used for elevated concrete floors, and does not require support from underground footers or foundation walls.

What Is Grade of Concrete?

Grades of concrete are defined by the strength and composition of the concrete, and the minimum strength the concrete should have following 28 days of initial construction. The grade of concrete is understood in measurements of MPa, where M stands for mix and the MPa denotes the overall strength.

Cement Types and Grades

Sr.No. Cement Types and Grades  Setting Time
(minutes)
Initial (min) Final (max)
1 33 grade cement OPC (IS 269–1989) 30 600
2 43 grade cement OPC (IS 8112– 1989) 30 600
3 53 grade cement OPC (IS 12269–1987) 30 600
4 Sulphate Resisting Cement. SRC (IS 12330–1988) 30 600
5 Portland Pozzolana Cement. PPC (IS 1489–1991) Part-I 30 600
6 Rapid Hardening Cement. PPC (IS 8041–1990) 30 600
7 Portland Slag Cement. PSC (IS 455–1989) 30 600
8 Super Sulphated Cement. (IS6909–1990) 30 600
9 Low Heat Cement. (IS 12600–1989) 60 600
10 Masonry Cement. (IS 3466–1988) 90 1440
11 43-S grade OPC (IS 8112–1989) 60 600
12 53-S grade OPC (IS 12269–1987) 60 600

Grade of Cement Used in Building Construction

There are commonly three types of cement used in general construction purposes i.e. Ordinary Portland Cement (43 Grade & 53 Grade), Portland Pozzolana Cement and Portland Slag Cement.

What Is Grade of Cement?

The grade indicates the strength of cement. Strength is generally measured as compressive strength. Before buying the cement, you should check the grades because it highly affects the strength of your structure. These are the types & grades available in the Market.

Cement Grading

The cement grade refers to the cement compressive strength that means how much strength cement can yield or bear. These cement grades are classified according to the compressive strength of the cement, tested after 28 days.

Grades of Cement

Generally, there are three types of cement grades; 33-grade, 43-grade, and 53-grade. Read on to know more about these types of cement that will help you decide on need.

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By Krunal Rajput

About Krunal Rajput

Hey, I am Krunal Rajput. The Man Behind CivilJungle. I started this site to spread knowledge about Civil Engineering. I am a Degree Holder in Civil Engineering.

You can find him on Facebook, Twitter, Tumblr, Instagram and Google News.

Comments

  1. cuttingtechnologies says

    20th August 2020 at 2:05 pm

    Quick question: Which grade of cement is the best for tiles? Thank you very much!

    Reply
    • Krunal Rajput says

      20th August 2020 at 4:43 pm

      33 Grade Cement

      Reply
  2. Jenny says

    29th December 2020 at 4:55 pm

    PPC and PSC cements are ideal for general residential construction works, however when it comes to slab installation I would recommend OPC 53 Grade cement which is a recommended by all professional for installation of RCC structures like slabs
    , beams, and columns, it is used in cases where initial and ultimate strength is the major structural requirement.

    Reply
    • Norman Roberts says

      13th August 2021 at 11:10 am

      Wonderful explanation. I am looking for POC.
      Need to purchase 100,000/MT per month.

      Reply
  3. MIR AHMED Ali says

    1st April 2021 at 6:46 am

    Hi
    Can I used 43 grede cement
    For slab
    Please tell me

    Reply
    • Krunal Rajput says

      1st April 2021 at 6:16 pm

      yes you can!

      Reply
  4. ISAC MATHEW says

    4th July 2021 at 10:06 pm

    For ground floor slab and roof slab which grade cement is used, 53 grade? Birla ultratech cement portland pozzolana is which grade and can be used for the above purpose?

    Reply
  5. Kamal yadav says

    4th September 2021 at 10:17 am

    Very good sir cement knowledge all the best

    Reply
  6. Tetea khiangte says

    11th December 2021 at 10:28 pm

    Which grade did you sold to Mizoram

    Reply
  7. Vipin Dagaonkar says

    19th May 2022 at 2:02 pm

    Which grade of cement is best recommended for plastering open terrace?

    Reply

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