Amiss Star General Trading

Portland cement for construction opc 42.5 nEuropean stand en197-1/2000and british standards bs12/96Chemical compositionSilicon dioxide sio2 21.00Aluminium oxide a12o3 5.50Ferric oxide fe2o3 3.30Calcium oxide cao 65.60Magnesium oxide mgo 1.40Sulphur trioxide so3 2.70Loss of ignition loi 1.40Tricalcium silicate c3s 60.00Dicalcium silicate c2s 15.00Tricalcium aluminate c3a 8.05Tricalcium alumino ferrice c4af 9.76Physical and mechanical propertiesBlain cm2/gr 3.250Autoclave expantion 0.02Initial setting time vicat 105 minutesFinal setting time vicat 135 minutesCompressive strength 03 days 230 KG/cm2 07 days 305 KG/cm2 28 days 420 KG/cm2