Title: What is Ordinary Portland cement? - PowerPoint PPT Presentation

Description: OPC or Ordinary Portland Cement, as it is called is made of ordinary clinker mixed with gypsum. Ordinary Portland cement is graded according to its compressive strength. There are three grades of Ordinary Portland cement namely, OPC-33 grade, OPC-43 grade and OPC-53 grade. The OPC- 53 is produced using a highly specialised process that allows optimum distribution of each particle, thereby allowing superior crystalline structure and balanced composition. The result is better strength and durability. OPC - 43 grade cement is produced by inter grinding of clinker and gypsum, to an optimum fineness to ensure both strength & durability of concrete at all ages, which it suitable for all construction works. – PowerPoint PPT presentation