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What is the required minimum fineness for grade 53 OPC?(a) 370 m^2/kg(b) 370 cm^2/g(c) 580 m^2/kg(d) 580 cm^2/gI had been asked this question during an online exam.This interesting question is from Grades of Cement topic in division Materials for Construction of Basic Civil Engineering

Answer» RIGHT option is (a) 370 m^2/kg

The EXPLANATION is: The value is in ACCORDANCE with the IS code 12269 for 53 grade OPC.Table 3 gives PHYSICAL requirements and fineness is one of them.


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