DIFFERENCE BETWEEN 43 Grade & 53 Grade

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DIFFERENCE  BETWEEN 43 Grade & 53 Grade

OPC 43 Grade Cement

OPC 43 grade cement is (Conforming to IS: 8122-1989) a cheaper comparative to OPC 53 grade cement. OPC 43 grade cement also has fine grinding of clinkers but comparatively less than OPC 53. This causes it to have a slower gain in strength when compared with 53grade  and also the comparative lack of magnesium by a difference of -0.01%. This percentage of magnesium content affects the heat of hydration performance. Due to this the 43grade cement gains the strength slower.

Advantages of 43grade cement:

• Due to the low heat of hydration comparative to 53grade. it develops less cracks

• no need to take extra precautions while laying concrete slabs.

• by using this we can reduce the leeching effects.

• it is less cost comparative to 53grade

Disadvantages of 43grade cement:

• it gains strength slower comparative to 53grade. due to this de-shattering of form work will take more time comparative to 53grade

OPC 53 Grade Cement

OPC 53 grade cement is (Conforming to IS:12269-1967) the most preferred building material for construction of projects where require high tensile strength. As 53 grade cement has the grinding of clinkers to the maximum extent and this cement grade is finer than grade 43.

The fineness in cement generates early gain in strength, but along with high heat of hydration.  however, is further supported in by magnesium strength which is 6.01% in OPC 53, only 0.01% higher than that in OPC 43. These differences cause a difference in potential phase composition of clinker which affects the final compressive strength.

The heat of hydration in the 53grade cement is very high which triggers reaction to get maximum strength in less time compare to the 43 grade. Because of this advantage the 53grade cement is most preferred building material in the construction industry. which enables the early de-shattering the form work in the construction projects

Advantages of 53grade cement:

• Due to the Quick heat of hydration it gains maximum strength in less time than 43grade.

• work progress will be more in construction sites. because it reduce the De-shattering time in site