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Oil Well Cement class G
Oil Well Cement class G

Liquidity, good stability, hardening, penetration-proof quality, strong corrosion resistance

Inspecting item

Unit 

Standard requirement

check result

conclusion

loss on lgnition

%

≤3.0

1.63

qualified

Insoluble residue

%

≤0.75

0.59

Qualified

MgO

%

≤6.0

2.99

Qualified

SO3

%

≤3.0

2.08

Qualified

C3S

%

≥48and≤65

53.85

Qualified

C3A

%

≤8.0

1.66

Qualified

C4AF+2C3A

%

≤24.0

19.83

Qualified

sodium oxide valent weight

%

≤0.75

0.66

Qualified

water cement ratio

%

44

44

Qualified

soundness

/

 

pass

Qualified

Free fluid

%

≤5.90

4.5

Qualified

52 35.6MPa

15-30min consistance

BC

≤30

13.0

Qualified

Thickening time

Min

≥90and≤120

105

Qualified

pressive strength

38,ordinary pressure,8h

MPa

≥2.1

3.9

qualified

60,ordinary pressure,8h

MPa

≥10.3

13.2

qualified

Oil Well Cement class G

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