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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 |
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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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