Portland cement clinker is ground to a fine powder and used as the binder in many cement products. A little gypsum is sometimes added. It may also be combined with other active ingredients or chemical admixtures to produce other types of cement including: ground granulated blast furnace slag cement
We provide clinker ,highest quality with 26% content of IRON III(oxyde)
1-Specifications:
Chemical analysis
CaO.............................38,5 - 45,0 % MgO............................. 4,0 - 7,0 % SiO2.............................10,0 - 16,5 % Al2O3.............................1,0 - 4,0% Fe ges...........................19,5 - 29,0 %
Mn....................................4,0 - 6,0 %
Fe ges...........................19,5 - 29,0 %
Mn....................................4,0 - 6,0 % P2O5.................................1,0 - 2,0 % Restoxide
ISO-Certifications:
- Quality Management (ISO 9001)
- Environmental Management (ISO 14001)
2- Quantities and Contract duration:
We can provide big quantities for any term of duration .
3-Terms of payment : L/C
4- Origin: EUROPE
Product Name: Portland cement clinker conforming to ASTM C150 Type I
Origin: Viet Nam
Min. Order Quantity: 5000mt
FOB/CNF Price: Be advised
Loading Port: Viet Nam
Production Capacity: 40,000 Tons
Packaging Details: In bulk
Delivery Time:
Within 15 days after open L/C
Grey Portland cement clinker conforming to Vietnam standards TCVN 7024: 2002, suitable for producing Ordinary Portland Cement conforming to ASTM C 150 Type 1
NoItemsUnitSpecification
1. Compressive strength(Mpa)
* After 3 daysN/nm2> 25
* After 28 daysN/nm2> 50
2. Particle size
* <1mm%< 10
* 5mm - 25mm%> 50
3. Moisture%< 1
4. CaO%58-67
5. SiO2%18-26
6. Al2O3%3-8
7. Fe2O3%2-5
8. MgO%< 5
9. Free Lime%< 1.5
10. Insoluble residue%< 0.75
11. Loss on ignition (LOI)%< 1
12. Color Grey, dark grey.
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Clinker consists of various calcium silicates including alite and belite. Tricalcium aluminate and calcium aluminoferrite are other common components. These components are often generated in situ by heating various clays and limestone.
Portland cement clinker is made by heating a homogeneous mixture of raw materials in a rotary kiln at high temperature. The products of the chemical reaction aggregate together at their sintering temperature, about 1,450 C (2,640 F). Aluminum oxide and iron oxide are present only as a flux to reduce the sintering temperature and contribute little to the cement strength. For special cements, such as low heat (LH) and sulfate resistant (SR) types, it is necessary to limit the amount of tricalcium aluminate formed.
The major raw material for the clinker-making is usually limestone mixed with a second material containing clay as source of alumino-silicate. Normally, an impure limestone which contains clay or silicon dioxide (SiO2) is used.
The calcium carbonate (CaCO3) content of these limestones can be as low as 80%. Second raw materials (materials in the rawmix other than limestone) depend on the purity of the limestone. Some of the second raw materials used are: clay, shale, sand, iron ore, bauxite, fly ash and slag. The clinker surface and its reactions in different electrolytic solutions are investigated by scanning electron microscope and atomic force microscopy.
Portland cement clinker is ground to a fine powder and used as the binder in many cement products. A little gypsum is sometimes added. It may also be combined with other active ingredients or chemical admixtures to produce other types of cement including: ground granulated blast furnace slag cement.
