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Portland cement type 1
Portland cement type 1-42.5:
Because of its advance resistivity, this type of cement is one of the most popular cements in the world. It can be used for normal constructions which have no limitation of environmental conditions (e.g. water, sand and …). But, because of high temperature of hydration, the usage of the cement type 1-42.5 is not suggested for warm area (e.g. Hormozgan Providence). There is also limitation of using this type of cement for gypseous lands or those affected by sea water, because of low strength against sulfate attacks. In spite of the mentioned limitation, Hormozgan Cement Co. has tried to reduce the environmental vulnerability of the concrete following the usage of this product.
 

chemical composition

 

(%)

 

(%)

MIN

MAX

MIN

MAX

Silicon Dioxide

SiO2

20.00

22.00

Insoluble Residue

I.R.

0.10

0.70

 Aluminium Oxide 

Al2O3

4.60

5.40

Free Lime

Free CaO

0.70

1.40

Ferric Oxide  

Fe2O3

3.50

4.00

Lime Saturation Factor

LSF

0.92

0.97

Calcium Oxide

CaO

63.00

65.00

Silica Module

SiM

2.40

2.60

 Magnesium Oxide

MgO

1.50

2.50

Alomina Module

AlM

1.20

1.50

Sulphur Trioxide  

SO3

1.50

2.50

Tricalcium Silicate

C3S

50.00

60.00

 Potassium Oxide

K2O

0.50

0.70

Dicalcium Silicate

C2S

15.00

25.00

Sodium Oxide

Na2O

0.30

0.50

Tricalcium Aluminate

C3A

5.00

9.00

 Loss on Ignition

L.O.I

0.60

0.100

Tetracalcium Alumino Ferrite

C4AF

10.00

12.00

 
 

 

physical composition

 

MIN

MAX

Fineness 

Blaine test

(cm2/g)

3000

3300

Expansion

Autoclave

(%)

0.05

0.16

Setting time:

 

Initial

(minute)

120

160

Final

(minute)

170

310

Compressive Strenght:

After 2 days

(kg/cm2)

200

250

After 3 days

(kg/cm2)

250

300

After 7 days

(kg/cm2)

300

350

After 28 days

(kg/cm2)

425

500


 
LSF=100×CaO/[(2.8×SiO2)+(1.18×Al2O3)+(0.65×Fe2O3)]
C3S=(4.071×CaO)-(7.6×SiO2)-(6.718×Al2O3)-(1.43×Fe2O3)-(2.852×SO3)
C2S=(2.867×SiO2)-(0.754×C3S)
C3A=(2.65×Al2O3)-(1.692×Fe2O3)
C4AF=(3.043×Fe2O3

 

Review: 2041
Date: 2015/11/09
Notices of Hormozgan Cement Co. in Codal System
Commercial & Sale Division:
purchase@hormozgancement.com
export@hormozgancement.com
sale@hormozgancement.com
Communication with Management:
Rahmanzadeh@hormozgancement.com
President’s Office
Government Database
Sepah Bank
Ministry of Industry, Mine & Trade
Omid Investment Management Co.

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