SSC RSMSSB JE Mock Test 2024 Construction Materials and Management Cement

As per IS 12600 : 1989, the fineness of low heat Portland cement determined by Blaine's air permeability method, the specific surface of cement shall NOT be less than:

1

400 m2/kg

2

320 m2/kg

3

300 m2/kg

4

220 m2/kg

5

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