Answer / rizwi danish

OPC means ordinary portland cement and ppc means pozzalana portland cement the basic difference that in opc cement we require less curing of concrete and setting time is also quicker than ppc but in ppc we need 28 days of curing for its compressive strength the composition is quit difference in ppc the gypsum value is greter than opc and in ppc ash content is haghier than opc

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