The initial time is the time whencementturns into paste when mixed with water and begins losing its plasticity. For PPC, the initial setting time is 30 minutes (minimum). Final Setting Time The time when cement loses its plasticity completely after it has been mixed water is the final settin...
There’s the popular Ordinary Portland Cement (OPC), the everyday choice for many builders. Then, there’s the eco-friendly Portland Pozzolana Cement (PPC) with its touch of volcanic ash. For projects in a hurry, Rapid Hardening Cement speeds things up. And if there’s concern about too ...
What is difference between OPC cement and PPC cement? Portland Pozzolana Cement is avariation of Ordinary Portland Cement. Pozzolana materials namely fly ash, volcanic ash, are added to the OPC so that it becomes PPC. PPC has low initial setting strength compared to OPC but hardens over a per...
Portland Pozzolana Cement(PPC) is manufactured by a combination of pozzolanic materials. Pozzolana is an artificial or natural material that has silica in it in a reactive form. Along with pozzolanic materials in specific proportions, PPC also contains OPC clinker and gypsum. What is difference betw...
The initial setting time of OPC cement should not be less than 45 min, and final setting time should not be greater then 10 hr. Also known as high early strength cement, as it develops strength rapidly. The hardening develops at the time of three days only which is gathered by OPC at ...
The accurate cover shall be maintained bycement mortarcubes and other permitted resources. EIC allocated precast concrete blockstructurefor reinforcements for footings, grade beams, and slabs on a sub-grade shall be rest on it. Some timeunskilled labor used pebbles or stonesinstead of concrete cover...
It is often observed that cement bags marked as OPC-43 Grade may really be containing cement of much higher grade. PPC cement as per IS Code is only of 33 Grade. Where as on bags it is marked as 43 MPa or 53 MPa. Site cement samples should be tested for its actual strength and ...
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made with regular Portland cement according to Indian Road Congress specification SP 49: 1998. IRC SP-49: 1998 recommends usingPortland pozzolanaand portland cement (PSC) in the production of DLC. You will find PPC common in India on a broad scale, but it has different properties than OPC. ...