Different Types Of Cement & There Advantages & Uses
Different Types Of Cement & There Advantages & Uses
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Types Of Cement : 1. Rapid Hardening Cement (RHC) 2. Portland Pozzolana Cement (PPC) 3. Portland Slag Cement (PSC) 4. White Cement 5. Ordinary Portland Cement (OPC)
1. Rapid Hardening Cement Rapid Hardening Cement is s kind of cement which achieves strength very fast.
The strength achieved by Rapid Hardening Cement in 3 equivalent to the strength achieve by Ordinary Portland (OPC) in 7 days.
The Hardening addition of 56%
days is Cement
properties of cement are enhanced with the of Tricalcium Silicate.
The improved early strength is achieved by the fineness of cement.
Advantages and Uses : It gains high strength in the early days and the formwork can be removed earlier as compared to other types of cement.
It requires a short period of curing.
Rapid hardening cement is used in areas like road pavements so that the traffic can be opened early. It is also used in manufacturing precast slabs, posts, electric poles, concreting in cold countries.
There is a reduced shrinkage during curing and hardening of cement.
Rapid hardening cement is resistant to sulphate attacks.
Rapid hardening cement is used in areas like road pavements that the traffic can be opened early. It is also used manufacturing precast slabs, posts, electric poles, concreting cold countries.
so in in
Rapid hardening Cement is Costly.
There is a good speed of construction as the cement sets rapidly.
It is a very durable cement which matches the fast pace of construction and budgets required to make projects operational.
2. PPC (Portland Pozzolana Cement) The Portland Pozzolana Cement is a kind of Blended Cement which is produced by either inter grinding of OPC clinker along with gypsum and pozzolanic materials in certain proportions or grinding the OPC clinker, gypsum and Pozzolanic materials separately and thoroughly blending them in certain proportions.
Advantages and Uses Higher durability of concrete structure due to less permeability of water.
More resistance towards the attack of alkalies, sulphates, chlorides, chemicals.
Better work ability.
Low heat of hydration.
Due to high fineness, PPC has better cohesion with aggregates and makes more dense concreteness.
Comparative lower Water-Cement ratio provides an added advantage for the further increase of compressive strength of the concrete.
Better surface finish.
3. White Cement White cement is a hydraulic binder whose physical characteristics correspond to those of Portland grey cement. It is distinguished by its pure white color. This whiteness is the result of nature, as well as the rigorous selection of raw materials used in manufacturing and a technologically advanced production process.
Uses: Thermal properties of concrete based materials can be far superior to other competitive materials.
Reflectivity of light for use in flooring applications in malls, schools, airports and other large buildings, which reduces the requirement excessive lighting which in turn reduces energy costs.
White cement can the need for paint
be pigmented or stains thus
to achieve various colors without eliminating VOCs.
Reduction of the heat island effect by using white based mix designs for the manufacture of rooftop pavers, light colored pavers in driveways, walkways, patios and around pools.
When concrete products reach the end of their long useful life they can be recycled and used in the manufacture of other products.
4. Portland Slag Cement (PSC) Portland Slag Cement (PSC) is manufactured by either intergrinding in the Portland cement clinker, Gypsum & Granulated Slag or blending the Ground Granulated Blast Furnace Slag (GGBS) with Ordinary Portland Cement by means of mechanical blenders.
Advantages and Uses: Reduced plastic shrinkage cracks.
Smooth surface finish.
Increased resistance to chlorides, sulphates, carbon dioxide and such other harmful salts.
Reduced heat of hydration and thermal cracks.
Improved workability and cohesiveness of the mix.
Higher ultimate compressive and flexural strength.
Higher impermeability.
Increased resistance to Alkali – silica reaction.
Durable and Sustainable Construction.
5. Ordinary Portland Cement (OPC) Ordinary Portland Cement (OPC) is the most common in general concrete construction when there is no sulphates in the soil or groundwater.
cement used exposure to
Advantages and Uses Produces highly durable and sound concrete due to very low percentage of alkalis, chlorides, magnesia and free lime in its composition.
Almost negligible chloride content results in restraining corrosion of concrete structure in hostile environments.
Significant saving in cement consumption while making concrete of grades M15, M20, M25, M35 and pre-cast segments due to high strength.
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