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Home > Products > Cements > Ordinary Portland Cement

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Portland Cement Type

Types 2, 3 and 5

Portland Cement Type I

 

Chemical specification of Portland cement type I


Standard

So2

Al2o3

Fe2o3

Cao

Mgo

So3

Cl

Ins.Res

L.O.I

Na2O+0.658k20

F. Cao

ASTM

 

 

 

 

<6

<3.5

 

<0.75

<3

 

%

ISIRI

 

 

 

 

<5

<3.5

 

<0.75

<3

 

 

F.R.S Co. Cement

21.2-.21.6

5.40-5.90

3.20-3.45

63.8-64.5

2.0-2.5

1.4-2.0

<0.04

0.40-0.65

0.6-1.2

0.8-1.0

1.0-1.8

 

 


 

 

 

 



Physical specification of Portland cement type I


Standard

Blaine

Autoclave Expansion

Setting    time

Compressive  Strength   Kg/cm2

Heat of cal/gr.   hydration

 

Cm2/g

%

Final (Min)

Final (Min)

3days

7Days

28days

7Days

28days

ASTM

>2800

<0.8

>45

<375

>128

>197

 

 

 

ISIRI

>2800

<0.8

>45

<360

>120

>200

>330

 

 

F.R.S Co. Cement

2850-3000

0.1-0.2

90-110

130-180

180-220

290-330

>400-450

68-78

80-90