Answer / shashank

opc is ordinary portland cement & ppc ic is portland
pozzalona cement in which fly ash is used

Answer / guru

opc cement is used for RCC structures where early strength is required. ppc is also used for RCC structures but achieving strength is longer compared to opc. It is suitable for brickwork, plastering work.

Answer / divusp

OPC based on lime content, PPC is based on fly ash content.
OPC is used in small structure as PPC is sued in larger structure. 
OPC less heat than PPC while chemical reaction.
PPC required more curing then OPC
PPC set quiker than OPC
PPC available more grades than OPC.
PPC eco frindly as it is manufacturing from waste fly ash.
finally for residential its recommended OPC
for commercial /dam like it is recommended PPC.

Answer / parveen kumar goyal

OPC is a ordinary Portland cement and used in RCC works but PPC is a Pozzolona Portland cement and use for constructing the slab . This PPC cement is very good in nature and grade of PPC cement is 53 grade.  PPC cement has greater strength then the OPC cement .so the PPC cement is preferred ..

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