Product & Quality Controls



Unique Quality, Incomparable Construction

SCIL is
involved in manufacturing of various grade of cement such as;

  1. Ordinary Portland
    Cement(OPC)
  2. Portland Composite
    Cement (PCC)

 

Scil is
producing Portland Cement in according with its own specification which is much
higher than the parameters Specified by:

  • ASTM C – 150: 95a
    (American Standard)
  • BS 12 : 1996 (British
    Standard)
  • BDS 232 : 1993 of BSTI
  • ISO -9001

 

Physical Properties

 


ELEMENTS

ASTM

BS
12:1996

BDS   
232:1993

SCIL
Specication


Requirements


Requirements


Requirements

Requirements


Fineness: Vicat

Min
2800 cm2/gm

Min
2750 cm2/gm

Min
2250 cm2/gm

Min 3000 cm2/gm


Soundness(Autoclave) Le Chatelier Expansion


Max.0.80%


Max.05mm

Max.
1.0%   Max. 10mm

Max. 1.00 mm

Setting
Time : Vicat (Gillmore)

IST –
45 mint.  FST – 375 mints

IST –
60mint.  FST -600 mints

IST –
60mint.  FST -600 mints

IST – 110-150 mints.
FST -170-350 mints

 

 


Strength in psi CONCRETE(Compressive
)

 

 

 

 


Curing Age

 

 

 

 


03 days 1 day in moist
air, 2 days in water


 


Min 2175


Min 1885


Min 2500


07 days 1 day in moist
air, 6 days in water


 


 


Min 2755


Min 3500


28 days 1 day in moist
air, 27days in water


 


Min 4930


Min 4205


Min 5500

 

 

 

 

 

 


Strength in psi MORTAR(Compressive)

 

 

 

 


Curing Age

 

 

 

 


03 days 1 day in moist
air, 2 days in water


Min 1800


Min 3625


Min 3335


Min 3500


07 days 1 day in moist
air, 6 days in water


Min 2800


 


Min 4060


Min 5500


28 days 1 day in moist
air, 27days in water


Min 4000


Min 6815


Min 5945


Min 7500


Strength in psi MORTAR(Tensile)

 

 

 

 


Curing Age

 

 

 

 


03 days 1 day in moist
air, 2 days in water


Min 150


Min 145


Min 145


Min 650


07 days 1 day in moist
air, 6 days in water


Min 275


Min 290


Min 290


Min 800


28 days 1 day in moist
air, 27days in water


Min 350


Min 363


Min 363


Min 1000

 

 


Chemical Properties

 


ELEMENTS


ASTM C-150:95a


BS       12:1996


BDS             232:1993


SCIL
Specication


Requirements


Requirements


Requirements


Requirements


Lime Saturation
Factor(LSF)


 


 


Min 0.66


0.93-0.97


Insoluble Residue(IR)


Max 0.75%


Max 1.5%


Max 1.50%


Max 1.00%


Magnesium Oxide (MgO) by
Mass


Max 6.00%


Max 4.0%


Max 4.00%


Max 3.00%


Sulphur Tri-Oxide(SO3) by
Mass


Max 3.00%


Max 3.5%


Max 3.00%


Max 2.00%


Loss on ignition (LOI)


Max 3.00%


Max 3.0%


Max 4.00%


Max 1.00%


Total Clorides(CI as
cholorine) by Mass


 


Max 0.1%


 


Max 0.05%


Total Alkalies(Na2
O+0.658 K2O)


Max 0.60%


 


 


Max 0.05%

 

 

 

 


Mineral Compound

 

 

 

 


Tricalcium
Silicate(3Ca0.Si02


 


 


 


Min 55.0%


Dicalcium
Silicate(2Ca0.Si02)


 


 


 


Min 20.0%


Tricalcium
Aluminate(3Ca0.Al2O3)


 


 


 


(8.0-10.0)%


Tetracalcium
Aliminoferrite(4CaO.Al2O3.Fe2O3)


 


 


 


Min 10.0%

 


Chemical Composition

 

 

 

 


Calcium Oxide(CaO)


 


 


 


(64.0-67.0)%


Silicon Di- Oxide(SiO2)


 


 


 


(20.5-22.0)%


Aluminium Oxide (Al2
O3)


 


 


 


(5.0-6.0)%


Ferric Oxide (F2 O3)


 


 


 


(3.0-4.0)%


Moisture(H2 O)


 


 


 


Max. 0.5%