سیمان 71

68.7-70.5

Al₂O₃

28.5 – 30.5

CaO

0.2 – 0.6

SiO₂

0.1 – 0.3

Fe₂O₃

<0.4

TiO₂

<0.5

MgO

<0.5

Na₂O+K₂O

<0.3

SO₃

1.04 – 1.23

دانسیته بالک g/cm³

3700-4500

Blaine fineness cm²/g

 (ASTM C204)

³ 60%

(ASTM C1437) Flow at 30 min

³ 175 min

Vicat Initial Set

£ 290 min Modified ASTM C191

Vicat Final Set

³ 1250 psi (8.6 MPa)

Compressive strength (ASTM C349) 6 hr

³ 31.7

Compressive strength (ASTM C349) 24hr

approx. 2.94

Specific gravity

< 5%

Residue at 90 microns (+170 mesh)

calcium aluminate CA

Principal mineralogical phase

CA2 C = CaO A = Al2O3 S = SiO2 F = Fe2O3

Secondary phase