Cement Quality parameters Test physical properties43 gradeBis 8112 v 1989 Fineness Setting surface m2 / kg 290.0 225.0 Soundness Lechatlier method (mm) Auto clave (%) 0.5-1.0 0.1% (maximum) Not more than 10 Not more than 0.8 Setting time Initial minutes Final minutes 120-140 160-180 Not less than 30 Not more than 600 Compressive strength mpa 3 days 7 days 28 days 25.0 45.0 58.0 Chemical requirements Loss of ignition Insoluble residue Magnesium oxide Lime saturation factor Sulphuric anhydride Alkalies