OPC 53 Grade

OPC 53 Grade at PARASAKTI CEMENT is produced Conformed to the Indian Standards Specifications as per IS: 12269 - 1987

The cement that is prepared by grinding Portland Cement Clinker and suitable proportions of Gypsum is called as Ordinary Portland cement. Small additions of performance improvers such as Fly ash, Blast furnace slag etc are permitted.

53 grade Ordinary Portland Cement is high strength OPC and provides numerous advantages where ever concrete for special high strength applications is required. The rate of development of strength is faster than 43 grade OPC.

53 Grade OPC is different from Rapid Hardening Portland Cement IS: 8041and their purposes of usage are different.

The Cement mortar that is prepared in 1: 3 proportions using standard sand (as per IS:650) and tested at standard laboratory conditions and gains the compressive strength of not less than 53 MPa after 28 days, then the Cement is said to be 53 Grade Ordinary Portland Cement.

Comparative Analysis Of Parasakti Cement with BIS Specifications OPC 53 Grade

Minimum Compressive Strength at

Description IS Requirement Parasakti Results
3 Days (72 ± 1hour) Not less than 27 MPa 35-38 MPa
7 Days (168± 2 hour) Not less than 37 MPa 45-47 MPa
28 days (672±4 hour) Not less than 53 MPa 59-63 MPa

Setting Time in Minutes

Description IS Requirement Parasakti Results
Initial Setting time Not less than 30 Minutes 130-160 Minutes
Final Setting time Not more than 600 Minutes 230-260 Minutes


Description IS Requirement Parasakti Results
By Blaine method Not less than 225 M2/Kg 275-295 M2/Kg


Description IS Requirement Parasakti Results
Le-Chatlier method Not more than 10mm 1-2 mm
Autoclave method Not more than 0.80 percent 0.05 - 0.2 %

Applications :

Used for Prestressed Concrete Structures and Precast Concrete requiring high strength, High-rise Buildings, Chimneys, Long span bridges, Flyovers, General Civil Construction Works like Residential, Commercial, Industrial Buildings, Bridges, Flyovers, Culverts etc.