50 kg und big bags (1.000kg & 1.500kg) or bulk or at buyers option Delivery terms : fifteen (35) days to forty five (45) days following sellerÆs receipt lc From buyer or from reseller in shipments of 12500/ 25.000 /50000 Mt per vessel / United states astm c-150, british bs 12/1996, european en-197 1/2000 Or russian m-400 or m-500. Chemical composition Silicon dioxide (sio2) 21.00 Aluminium trioxide (al2o3) 5.50 Ferric oxide (fe2o3) 3.30 Calcium oxide (cao) 65.60 Magnesium oxide (mgo) 1.40 Sulphate (so3) 2.70 Loss on ignition (loi ) 1.40 Dicalcium silicate (c2s) 15.00 Tricalcium silicate (c3s) 60.00 Tricalcium aluminate (c3a) 8.05 Tricalcium alumino ferric (c4af) 9.76 Physical and mechanical properties Fineness by blain cm/g 3250 Autoclave expansion 0.02 Initial setting time (vicat) 105 minutes Final setting time (vicat) 135 minutes Compressive strength 03 day's 230 kg/cm2 Compressive strength 07 days 305 kg/cm2 Compressive strength 28 day's 420 kg/cm2 Product packing : 50 kg und big bags (1.000kg & 1.500kg) or bulk or at buyers option