Different types of cement are manufactured to meet different physical and chemical requirements for the specific purposes.
The different types of cement are as follows:
Ordinary Portland Cement
It is used for all general purposes and widely used for all ordinary concrete work, mortar, plaster etc.
Portland Pozzolana Cement
It is also most generally used type of cement. Waste materials from the power plant like fly ash are used in the production of Portland pozzolana cement. It is used in mass concrete constructions like high-rise buildings, underwater concrete structures such as bridges, piers, dams etc. The heat of hydration rate is lower in this type of cement.
Rapid Hardening Cement
It is used in concrete where formwork is to be removed at an early stage. Rapid hardening cement is quite similar to that of Ordinary Portland cement because of their textures but it is a bit finer than OPC. Therefore, it attains high strength in the early days.
Extra Rapid Hardening Cement
Suitable for concrete in cold weather. This type of cement accelerates the setting and hardening process. The compressive strength of Extra Rapid Hardening cement is about 25% higher than that of Rapid Hardening Cement at one or two days.
Quick Setting Cement
This type of cement is used where the quick setting is needed in the very short period like underwater structures, cold and rainy weather conditions etc.
Low Heat Cement
The name itself indicates low heat of hydration. It is used in massive concrete construction like large footings, large raft slabs, gravity dams, thick pavements, etc.
Sulphate Resisting Cement
Sulphate resisting cement is beneficial in the area where the concrete is vulnerable to sulphates attack in large amount. It is used where concrete has an exposure to sea coast or soil or saline groundwater.
Portland Blast Furnace Slag Cement
It is special blended cement with low heat of hydration. It is used in mass concrete structures like a dam.
High Alumina Cement
This type of cement is used where concrete structures are subjected to high temperatures like workshop, refractories, foundries etc
It is more costly and is used for architectural purposes such as pre-cast curtain wall and facing panels etc. It is also preferred for flooring terrazzo works.
This type of cement is widely used for decorative works in floors and ceiling.
Air Entraining Cement
This type of cement is especially suited to improve the workability with smaller water-cement ratio and to improve frost resistance of concrete. Because of voids will also reduce the durability of concrete.
The hydrophobic quality of cement would facilitate its storage for longer periods in extremely wet climatic conditions. In India certain places such as Assam, Shillong etc., get plenty of rainfall in the rainy season had had high humidity in other seasons.
This kind of cement is mostly used for masonry construction.
The purpose of this type of cement is to reduce the size and amount of shrinkage cracks. These cements are increasingly used for the repair of concrete structures.
Oil Well Cement
Oil-well cement is used by the petroleum industry for cementing gas and oil-wells at high temperatures and pressures.
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