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First Cement Industries Grade 425 N/R

ACCORDING TO BRITISH STANDARDS

12/1996 OR ASTM C-150

 

CHEMICAL COMPOSITION

SILICON DIOXIDE (SIO2) 21.00
ALUMINIUM OXIDE (A12O3) 5.30
FERRIC OXIDE (FE2O3) 3.30
CALCIUM OXIDE (CAO) 65.60
MAGNESIUM OXIDE (MGO) 1.10
SULPHUR TRIOXIDE (SO3) 2.70
LOSS OF IGNITION (LOI) 0.90
TRICALCIUM SILICATE (C3S) 60.00
DICALCIUM SILICATE (C2S) 15.00
TRICALCIUM ALUMINATE (C 3A ) 8.05
TRICALCIUM ALUMINO FERRICE (C4AF) 9.76

PHYSICAL AND MECHANICAL PROPERTIES

BLAIN CM2/GR 325
AUTOCLAVE EXPANTION 0.02
INITIAL SETTING TIME (VICAT) 105 MINUTES
FINAL SETTING TIME (VICAT) 135 MINUTES
COMPRESSIVE STRENGTH @ 03 DAYS 230 KG /CM2 AND@07 DAYS 305 KG /CM2 AND @ 28 DAYS 420 KG /CM2

 
Min - Max
 
Min - Max
  Silicon Dixide                       %ُSiO2
20.0 - 22.0
 Insotuble Residue               %I.R
0.05 - 0.5
  Aluminium Oxide                 %َAl2O3
4.5 - 5.5
  Free Lime                    %Free CaO
0.7 - 1.5
  Ferric Oxide                        %Fe2O3
3.5 - 4
  Lime Saturation Factor         LSF
92.0 - 97.0
  Calcium Oxide                     %CaO
62.0 - 66.0
  Silica Module                        SLM
2.3 - 2.5
  Mangnesium Oxide              %MgO
2.5 - 3.5
  Alomina Module                    ALM
1.1 - 1.5
  Sulphur Terioxide                %So3
2.0 - 3.0
  Tricalcium Silicate                %C3S
40.0 - 60.0
  Putassium Oxide                 %K2O
0.4 - 0.7
  Dicalcuim Silicate                 %C2S
15.0 - 30.0
  Sodium Oxide                      %Na2O
0.3 - 0.6
  tricalcium Aluminate             %C3A
5.0 - 8.0
  Loss on Ignition                  %L.O.I
1.0 - 2.5
  Tetracalcium Aluminoferry  %C4AF
10.5 - 13.0

Physical Test

 
Min - Max
  Fitness : Blaine Test
Cm2/gr
2800 - 3200
  Autoclave Expansion
%
0.01 - 0.2
  Setting Time:
Initial
Minute
140 - 190
Final
Minute
270 - 320
  Compressive Strength:
After 3 Days
Kg/Cm2
140 - 250
After 7 Days
Kg/Cm2
250 - 340
After 28 Days
Kg/Cm2
350 - 450


Second Cement Industries Type V
Chemical Analysis Physical Test
SiO2 % 21.69 Fineness :
Specific Surface, Blaine		 2900 Cm2/g
Al2O3 % 3.81
Fe2O3 % 4.26 Soundness :
Autoclave Expansion		 0.1 %
CaO % 63.66
MgO % 2.00 Setting Time :
Initial
Final		 140
180		 Min.
Min.
SO3 % 2.20
Cl % 0.035
Na2O % + 0.658 K2O % 0.9 Compressive Strength :
3 Days
7 Days
28 Days		 240
310
460		 Kg/cm2
Kg/cm2
Kg/cm2
Loss On Ignition % 1.3
Ins. Res % 0.6
Free CaO % 1.0
C3S % 56.4 Bending Strength :
2 Days
7 Days
28 Days		 -
-
-		 -
-
-
C2S % 19.7
C3A % 2.9
C4AF % 13.0
Bulk Density (g/cm2) 1.2 - 1.3 Sieve Test A 3.5 %

Second Cement Industries Type 1-425
Chemical Analysis Physical Test
SiO2 % 21.687 Fineness :
Specific Surface, Blaine		 3060 Cm2/g
Al2O3 % 5.00
Fe2O3 % 3.57 Soundness :
Autoclave Expansion		 0.1 %
CaO % 62.25
MgO % 2.00 Setting Time :
Initial
Final		 140
180		 Min.
Min.
SO3 % 2.10
Cl % 0.035
Na2O % + 0.658 K2O % 1.0 Compressive Strength :
3 Days
7 Days
28 Days		 210
310
435		 Kg/cm2
Kg/cm2
Kg/cm2
Loss On Ignition % 1.60
Ins. Res % 0.40
Free CaO % 1.50
C3S % 42.6 Bending Strength :
2 Days
7 Days
28 Days		 -
-
-		 -
-
-
C2S % 30.6
C3A % 7.2
C4AF % 10.2
Bulk Density (g/cm2) 1.2 - 1.3 Sieve Test A 2.00 %

Third Cement Industries Type 5
Chemical Analysis
Parameters Result
Silicon Dioxide                                     SiO2 20.82
Aluminum Oxide                                 Al2O3 4.2
Ferric Oxide                                       Fe2O3 4.10
Calcium Oxide                                     CaO 63.72
Magnesium Oxide                               MgO 2.84
Sulfur Trioxide                                     SO3 1.56
Potassium Oxide                                 K2O 0.66
Sodium Oxide                                     Na2O 0.24
Chloride                                                Cl 0.065
Loss On Ignition                                  L.O.I 1.67
Insoluble Residue                                 I.R 0.36
Free Lime                                           F.CaO 0.9
Tricalcium Silicate                                 C3S 62.6
Dicalcium Silicate                                  C2S 12.47
Tricalcium Aluminates                           C3A 4.19
Tetracalcium Alumino Ferrite                C4AF 12.48

Physical Test

Sieve 0.09 7.1
Blaine (cm2/gr) 2964
Setting Time In(M) 195
Setting Time FI(M) 240
Auto.   Exp 0.065
Comp.Strengh kgf/cm2      3 Days 170
Comp.Strengh kgf/cm2      7 Days 230
Comp.Strengh kgf/cm2      28 Days 335

 

Third Cement Industries Type 2
Chemical Analysis
Parameters Result  
Silicon Dioxide                                     SiO2 20.75  
Aluminum Oxide                                 Al2O3 4.31  
Ferric Oxide                                       Fe2O3 4.03  
Calcium Oxide                                     CaO 52.9  
Magnesium Oxide                               MgO 3.06  
Sulfur Trioxide                                     SO3 1.7  
Potassium Oxide                                 K2O

0.68

  
Sodium Oxide                                     Na2O 0.25  
Chloride                                                Cl 0.078  
Loss On Ignition                                  L.O.I 2.25  
Insoluble Residue                                 I.R 0.42  
Free Lime                                           F.CaO 1.5  
Equivalent Alkalis 0.74  
Tricalcium Silicate                                 C3S 58.78  
Dicalcium Silicate                                  C2S 16.15  
Tricalcium Aluminates                           C3A 4.80  
Tetracalcium Alumino Ferrite                C4AF 12.26  
 

Physical Result

Sieve 0.09 8.1  
Blaine (cm2/gr) 3000 Min : 2800
Setting Time In(M) 200 Min : 45
Setting Time FI(M) 250 Max : 380
Auto.   Exp 0.125 Max : 0.8%
Comp.Strengh kgf/cm2      3 Days 260 Min : 100
Comp.Strengh kgf/cm2      7 Days 340 Min : 175
Comp.Strengh kgf/cm2      28 Days 430 Min : 315s