
Cement is a widely used binder material in the construction industry, mostly grey in colour. Ordinary Portland Cement (OPC) is a cementitious binder that conforms to specific standards outlined in Indian Standard IS 269:2015. OPC is classified into different grades based on its compressive strength, such as 33, 43, and 53 grades. OPC 43 and OPC 53 are widely used in general constructions.