Cement

Portland 42.5N Chemical Analysis

Si02 Silicon Dioxide: 21%

A120 Aluminum Oxide: 5.30%

Fe203 Ferric Oxide: 3.30%

CaO Calcium Oxide: 65.60%

MgO Magnesium Oxide: 1.10%

So3 Sulphur Trioxide: 2.70%

LOI Loss of Ignition: o.90%

C3A Tricalcium Aluminates 8.05%

C3S Tricalcium Silicate: 60.00%

C2S Dicalcium Silicate: 15.00%

C4AF Tricalcium Aluminous Ferric: 9.76%

Physical Tests

2Blaine 3.250 Cm/g Compressive Strength

03 – Days 230 N/mm KG/CM2

07 – Days 305 N/mm KG/CM2

28 – Days 420 N/mm KG/CM2

Initial Setting Time (Vicat Test) 105 Min

Final Setting Time (vicat Test) 135 Min

Portland 42.5 N Chemical Analysis

Formula 42.5 Typical Analysis

Si03 Silicon Dioxide: 21.00%

A120 Aluminum Oxide: 5.30%

Fe203 Ferric Oxide 5.30%

Ca0 Calcium Oxide: 65.60%

Mg0 Magnesium Oxide: 1.10%

S03 Sulphur Trioxide: 2.70%

LOI Loss of Ignition: 0.90%

Cement

Portland 42.5 R, Chemical Analysis Continued

C3A Tricalcium Aluminates: 60%

C3S Tricalcium Silicate: 60%

C2S Dicalcium Silicate: 15.00%

C4AF Tricalcium Aluminous Ferric: 9.76%

Physical Tests

Blaine fineness m2kg360 – 380

Air Content: 7.1 12

03 Days 27 / 22-31

28 – Days 54 / 46 -56

Initial Setting time (Vicat Test) 135 m in / 70 – 150

Final Setting Time (Vicat Test) 210 min / 130 – 300

Palse Set Paste 86 / 50 min

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