Ordinary Portland Cements“ (OPC) 43 SUPER GRADE as per IS 269:2015.
A mixture of limestone and other raw materials like argillaceous, calcareous, gypsum is
prepared and then grinded to prepare OPC.
Specifications of (OPC) 43 SUPER GRADE :
- Initial strength is higher than PPC & Its initial setting time is 30 minutes and
final setting time is 280 minutes. Its faster setting time helps faster
- Generates more heat than PPC in hydration reaction which makes it less suitable for
- OPC has finiteness of 225 sq.m/kg. It has lower fineness than PPC. So, it has higher
permeability resulting lower durability.
- Application/Uses It is suitable where fast construction is required & Grades
available OPC 53 SUPER POWER GRADE & OPC 43 POWER GRADE .