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Portland Cement (Type M500)

Component

Cement Specification

Standard Specification (GOST10178)

Chemical Analysis

SiO2

21.5±0.5

-

Al2O3

4.6±0.15

-

Fe2O3

3.8±0.15

-

CaO

63 ±0.5

-

MgO

3 ±0.15

<5

SO3

2±0.15

<3.5

Na2O

0.43±0.03

-

K2O

0.42±0.03

-

L.O.I.

1.4±0.25

-

I.R.

0.30±0.10

-

Phase Content

C3S

55±2

-

C2S

19±2

-

C3A

6±0.2

C4AF

11.5±0.50

-

Physical Properties

Blaine ( cm2/gr )

3250±50

-

Fineness

0.10±0.02

15% <80 m

Autoclave Expansion (%)

-

Compressive strength (kg/cm2)

3 days

298±15

>280

28 days

525±20

>500

Initial Setting time (min)

200±10

>45

Final Setting time (min)

250±10

< 600