gray cement

PORTLAND CEMENT CEM II 42.5 N CONFORMING TO EN 197 1: 2000

 

 

 

 

 

No.

 

Testing Items

 

Unit

 

Guaranteed specifications

 

Testing methods

1

CaO

(%)

55.0 min

 

 

 

 

 

 

EN 196-2

2

SiO2

(%)

27 max

3

Al2O3

(%)

5.5 max

4

Fe2O3

(%)

4.0 max

5

MgO

(%)

3.0 max

6

SO3

(%)

3.0 max

7

Insoluble Residue

(%)

12.0 max

8

LOI

(%)

10.0 max

9

Total Alkalies

(%)

1.0 max

 

 

 

 

No.

 

Testing Items

 

Unit

Guaranteed specifications

Testing methods

 

 

1

Compressive Strength

- 02 days

N/mm²

10 min

 

EN 196 - 1

- 28 days

N/mm²

42.5 min

 

 

2

Setting Time

Initial Set

Min

75

 

EN 196 - 3

Final Set

Min

< 280

3

Soundness

Mm

10 max

EN 196 3

 

4

Finess test

 

 

 

Blaine

cm2/g

3200 min

EN 196 - 6

 

Physical   Test

Chemical  Analysis

 

Cm2/g

2900

Fineness:

Specific Surface, Blaine

21.74

SiO2 %

5.0

Al2O3 %

 

 

Soundness:

4.0

Fe2O3 %

%

0.1

Autoclave Expansion

63.04

CaO %

 

 

Setting Time:

2.0

MgO %

Min.

120

Initial

2.3

SO3 %

Min.

170

Final

0.035

Cl %

 

 

Compressive Strength:

1.0

Na2O%+0.658 K2O%

Kg/cm2

220

3 Days

1.3

Loss on ignition %

Kg/cm2

275

7 Days

0.6

Ins. Res. %

Kg/cm2

380

28 Days

1.4

Free CaO %

 

 

Bending Strength:

45.5

C3S %

-

-

2 Days

28.0

C2S %

-

-

7 Days

6.5

C3A %

-

-

28 Days

12.2

C4AF %

%

4.0

Sieve Test A

1.2-1.3

Bulk density(g/cm2)


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