Table 1: Physical properties of cement.

Test - Result ASTM C 150 Limits
Specific Gravity - 3.12 -
Specific Surface - 3197 cm2/g Minimum 2800 cm2/g
Water Demand - 25.65% -
Setting Time Initial 160mins Not less than 45mins
Final 252mins Not more than 375mins
Soundness - 0.3mm -
Compressive Strength (Mortar Prism) At 2 days 19.3 MPa Minimum 12 N/mm2
- At 28 days 48.94 MPa Minimum 19 N/mm2
Colour - Grey -