BTO ....... BTO .......... BTO ............BTO

 ●  Product  name  :          
                                     -  Ordinary grey Portland Cement
                                     - 42.5 R or N - DIN EN 197 - 1 : 2000 or BSS 12/11996 or ASTM C - 150

 ●  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 ) ......................................................................................... 00.00
       -  Tricalcium Aluminate ( C3A ) .....................................................................................  8.96           
       -  Tricalcium Alumno 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 days 230 kg/cm2
       - Compressive Strength  ............................................................................................. 07 days 305 kg/cm2
       - Compressive Strength ............................................................................................... 28 days 420 kg/cm2