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What are the different grades of Ordinary Portland Cement (OPC)?

April 26, 2017cement different grades OPC Portland

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What are the different grades of Ordinary Portland Cement (OPC)?

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The Bureau of Indian Standards (BIS) has classified OPC in three different grades The classification is mainly based on the compressive strength of cement-sand mortar cubes of face area 50 cm2 composed of 1 part of cement to 3 parts of standard sand by weight with a water-cement ratio arrived at by a specified procedure.