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CEMENT

ORIGIN: EGYPT - 4003004

 

 

 

 

 

  

EGYPT QUALITY CERTIFICATE

PORTLAND CEMENT 42.5 SPECIFICATIONS

 

CHEMICAL COMPOSITION

Min-Max

SILICON DIOXIDE    

(Sio2)

21.00

Aluminum Oxide           

(Al2o3)

5.30

Ferric Oxide                 

 (Fe2o3)

3.30

CALCIUM OXIDE                 

(Cao)

65.60

MAGNESIUM OXIDE            

(Mgo)

1.10

Sulfur Trioxide               

(So3)

2.70

Loss On Ignition                     

(L.O.I.)

0.90

Tricalcium Silicate                 

(C3s)

60.00

Dicalcium Silicate                

(C2s)

15.00

Tricalcium Aluminate           

(C3a)

8.05

Tetracalcium Alumino  Ferrite 

(C4af)

9.76

PHYSICAL AND MECHANICAL PROPERTIES

Min-Max

PLAIN                                                     (CM2/GR)

3.250

AUTOCLAVE EXPANSION

0.02

INITIAL SETTING TIME     (VICAT)        (MINUTES)

105

FINAL  SETTING TIME                              (minute)

135

COMPRESSIVE STRENGTH :

 

AFTER 3 DAYS         (kg/cm2)

230

AFTER 7 DAYS          (kg/cm2)

305

AFTER 28 DAYS        (kg/cm2)

420