CEMENT 

    COMPANY

INC.




SPECIFICATIONS:

GREY PORTLAND CEMENT FOR CONSTRUCTION

GRADE 42.5

according to British standards BS12/96 or ASTM C-150.

CHEMICAL ANALYSIS

Formula 42.5 r Typical Analysis

Si02 Silicon Dioxide 21 0/0

A120 Aluminum Oxide 5.30

Fe203 Ferric Oxide 3.30

CaO Calcium Oxide 65.60

MgO Magnesium Oxide 1.10 0/0

S03 Sulphur Trioxide 2.70 0/0

LOI Loss Of Ignition 0.90

C3A Tricalcium Aluminates 8.05

C3S Tricalcium Silicate 60.00

C2S Dicalcium Silicate 15.00 % C4AF

Tricalcium Alumino Ferric 9.76 0/0

PHYSICAL AND MECHANICAL PROPERTIES

Blain CM2/GR 3.250

Autoclave Expansion 0.02

Initial Setting Time (VICAT) 105 Minutes

Final Setting Time (VICAT) 135 Minutes

Compressive Strength

03 days - 230 KG/CM2

07 days 305 KG/CM2

28 days 420KG/CM2

*************************************************************************

CEMENT TECHNICAL SPECIFICATION

PORTLAND GREY CEMENT 42.5 - FOR CONSTRUCTION GRADE 42.5 N/ R GREY PORTLAND CEMENT CONSTRUCTION GRADE 42.5 :

*

SANS 50197-1 / SABS EN 197-1

*         United States Standard ASTM C 150

*            British Standard 12/1996

*         European Standard EN 197-1/2000

CHEMICAL COMPOSITION

 

 

Silicon Dioxide (Si02)

20.8

- 21.5

Aluminium Oxide (A1203)

5.30

 

Ferric Oxide (Fe203)

 

3.25 - 3.5

Calcium Oxide (CaO)

 

65.60

Magnesium Oxide (MgO%)

 

1.7 - 3.0

Sulphur Trioxide (S03)

2.7 - 3.0

Loss Of Ignition (L01)

 

1.8 - 3.0

Insoluble Residue %

 

0.1 - 0.7

Tricalcium Silicate (C35%)

 

50.0 - 54.4

Dicalcium Silicate (C2S%)

 

14.2 - 18.2

 

Tricalcium Aluminate (C3A%)

6.0 — 6.8

 

Tricalcium aluminium Ferrous (C4AF%)

11.6

 

Chromium (Cr%)

2.0 Max.

 

PHYSICAL AND MECHANICAL PROPERTIES

 

 

Blain CM2/GR

3.250

 

Autoclave Expansion

0.02

 

Normal Consistency %

27.5

 

Initial Setting Time (Hours: minutes)

3.25

— 4.50

Hard Set (Hours: minutes)

4.54 — 6.00

 

Fitness Index (CM2 /GM)



2800-3040


 COMPRESSIVE STRENGTH ISO/ EN 197-1/ 2000 BS 4550 MORTAR

@

03 DAYS

2.65

— 34.2 KG/CM2

@

07 DAYS

37.3

— 42.5 KG/CM2

@

28 DAYS

52.8

— 54.6 KG/CM2

Appendix # 3- SPECIFICATIONS: CHEMICAL COMPONENTS:

SILICON DIOXIDE(Si02 ) ALUMINUM OXIDE (A1203 ) IRON OXIDE (Fe203 )

CALCIUM OXIDE (CaO) MAGNESIUM OXIDE (MgO) SULFUR TRIOXIDE (SO3)

2-FINENESS:

Retained on sieve No.170 (90 um)           Less than 1%

3-COMPRESSIVE STRENGTH (MORTAR)

A-    3 days [age]                                        More than 15 N/mm2

B-     7 days [age]                                        More than 23 N/mm2

INSPECTION:

Quantity, Quality, Phytosanitary, and weight, by INTERTEK/S.G.S ,With Photographs of the material inspected & to be shipped, at Seller's cost, established at the port of loading/export-shipment, along with the Buyer's Representative, as and when requested.

inspection, if it is required at the port of discharge by the buyer shall be at buyer's expense.

                                                 THANK  YOU FOR CONTACTING US, 


    WE  ARE  HERE  TO  SERVE  YOUR  CEMENT  CONSTRUCTION  PROJECTS  NEED.

MR.  ERIC STAHR, PRESIDENT;

 WE ARE  REGISTERED IN THE STATE  OF  WYOMING, U.S.A.; 30 YEARS IN BUSINESS.

OFFICE : CALIFORNIA, NEVADA, WYOMING, CHICAGO, NEW YORK, MIAMI, TEXAS,