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Portland cement clinker buy in Rizhao
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Portland cement clinker

Portland cement clinker

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Technical characteristics
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Description

Portland cement clinker

Ordinary Portlanf Cement Clinker Technical Specifications

ACCORDING TO CHINESE STANDARD GB/T21372-2008

TESTING ITEMS

UNITS

Result of Analysis

STANDARD

TEST STANDARD

MAGNESIUM OXID

MgO

%

3.98

5.0MAX

GB/T176-1996

SULFAR TRIOXIDE

SO3

0.56

1.5MAX

CALCIUM OXIDE

CaO

64.82

63.0 MIN

SILICON DIOXIDE

SiO2

21.58

18-24

ALUMINUM OXID

Al2O3

4.51

4.0-9.5

FERRIC OXIDE

Fe2O3

2.94

2.0-5.5

LOSS ON IGNITION

LOI

0.28

1.5MAX

TOTAL ALKALI

Na2O+0.658K2O

0.59

0.60MAX

INSOLUBLE RESIDUE

IR

0.18

0.75MAX

F-CaO

1.32

1.5MAX

3CaO·SiO2

C3S

58.33

37-65

GB/T21372-2008

2CaO·SiO2

C2S

18.19

15-37

3CaO·Al2O3

C3A

6.98

6-15

4CaO·Al2O3·Fe2O3

C4AF

8.94

7-18

BY CALCULATION

Initial Setting Time

minute

90

60MIN

GB/T1346-2001

Final Setting Time

132

300MAX

Compressive Strength @ 03 days

Mpa

32.4

25MIN

GB/T17671-1999

Compressive Strength @ 28 days

-

52.5M

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Portland cement clinker
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