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Types of Cement

Types of Cement·
. Clinker Cement
· Ordinary Portland Cement
· Portland Blast Furnace Slag Cement
· Portland Pozzolana Cement
· Rapid Hardening Portland Cement
· Oil Well Cement
· White Cement
· Sulphate Resisting Portland Cement

· Clinker Cement: It is the solid material produced by the cement kiln stage. Clinker is ground to become Portland cement. It may also to be interground with other active ingredients to produce Blastfurnace slag cement, Pozzolanic cement and Silica fume cement.
· Ordinary Portland Cement (OPC): It is a fine powder produced by grinding Portland cement clinker (more than 90%), a limited amount of calcium sulfate which controls the set time, and up to 5% minor costituents.
· Portland Blast Furnace Slag Cement : The Slag Cement of the Portland Blast Furnace is a type of cement that is hydraulic and is manufactured in a blast furnace where iron ore is reduced to iron. Salg is a non-metallic product consisting essentially of glass containing silicates, alumino-silicates of lime and other bases and is obtained as a waste by-product in the manufacture of pig iron in a blast furnace or electric furnace. The molten slag which is tapped is quickly drenched with water, dried, and then grounded to granuals whixh is used in the manufacture of Portland Slag Cement (PSC). The manufacture of Portland Blast Furnace Slag Cement requires 75% less energy than that needed for the production of the Portland cement. The low cost of production of Portland Blast Furnace Slag Cement makes it cheaper than Portland cement. Raw materials used in it are Limestone, Iron Ore, Iron Scrap, Coke.
· Portland Pozzolana Cement: It is manufactured by blending pozzolanic materials, OPC clinker, and gypsum either grinding them together or separately. Pozzolans (Fly ash, Volcanic ash, Silica fumes, Calcined clay) are commonly used as an addition to Portland cement concrete mixtures to increase the long-term strength and other material properties of Portland cement concrete.
· Rapid Hardening Portland Cement (RHPC): It is a type of cement that is used for special purposes when a faster rate of early high strength is required. RHPC has a higher rate of strength development than the Normal Portland Cement (NPC).
· Oil Well Cement: Oil Well Cement as the name suggests, is used for the grouting of the oil wells, also known as the cementing of the oil wells. This is done for both, the off-shore and on-shore oil wells.
· White Cement: It is much like the ordinary gray cement except that it is white in color. In order to get this color of the White Cement, its method of production is different from that of the ordinary cement. However, this modification in its production method makes White Cement far more expensive then the ordinary cement. It is mainly used in architectural projects and decorative works. Raw material required is Limestone, Sand, Iron Ore, Nickel, Titanium, Chromium, Vanadium.
· Sulphate Resisting Portland Cement (SRC): It is a type of Portland cement in which the quantity of tricalcium alumiante is less than 5%. It can be used for purposes wherever Portland Pozzolana Cement, Slag Cement, and Ordinary Portland Cement are used.