What is portland Pozzolana cement?

PPC is a type of blended cement. It consists of 15-35% pozzolanic material, 4% gypsum and the rest is clinker. PPC as per BIS code is equivalent to that of 33 grade.

Where is Portland pozzolana cement used?

Portland Pozzolana Cement (PPC)

It can be confidently employed in construction of hydraulic structures, marine works, mass concreting such as dams, dykes, retaining walls foundations and sewage pipes. It is also suitable for use in common applications such as masonry mortars and plastering.

Which is better OPC or PPC?

PPC cement is generally used for plastering, brick masonry and waterproofing works. PPC has a lower heat of hydration and it is prone to fewer cracks compared to OPC. PPC has lower strength than OPC but PPC provides better workability and finishing than OPC. PPC provides greater resistance to chemicals.

What are the advantages of Portland pozzolana cement?

Why is it called Portland pozzolana cement?

The designation pozzolana is derived from one of the primary deposits of volcanic ash used by the Romans in Italy, at Pozzuoli. The modern definition of pozzolana encompasses any volcanic material (pumice or volcanic ash), predominantly composed of fine volcanic glass, that is used as a pozzolan.

Difference between Ordinary Portland Cement and Portland Pozzolana Cement

What is the difference between OPC and PPC cement?

Conclusion: Both OPC and PPC are commonly used cements in construction. These days, PPC is used as a substitute of OPC. PPC is a variation of OPC which adds a mixture of a pozzolanic material that helps to enhance the strength of the concrete. PPC also brings down the amount of OPC requirement in making concrete.

What pozzolana means?

Definition of pozzolana

: finely divided siliceous or siliceous and aluminous material that reacts chemically with slaked lime at ordinary temperature and in the presence of moisture to form a strong slow-hardening cement.

What is Portland cement used for?

Basic use. Use Portland Cement in concrete for bridges, walls, culverts, floors, pavements, sidewalks, pipe, railway structures, reinforced concrete buildings, tanks and reservoirs, as well as for masonry units and other precast products.

What is the grade of PPC cement?

There are no grades in PPC or in any other type of cement. 43 S grade and 53 S grade of cement are used in Railway Engineering for manufacture of sleepers.

Which cement is best PSC or PPC?

PSC cement is the better then the PPC. The ultimate strength of PSC is high. Chloride & sulfate attack is very dangerous for any type of structure, PSC is only cement who react better opposite to the Chloride and Sulfate. PPC is not suitable for coastal and sea shore area.

Can PPC be used for RCC?

For the construction of concrete slab both the OPC & PPC cement can be used.

Which cement is best for RCC?

OPC 53 Grade cement is recommended in all RCC structures like footing, column, beam and slabs, where ever initial and ultimate strength is the major structural requirement.

Why is PPC used?

PPC is special blended cement useful in general construction work and is especially suitable for applications in aggressive environmental conditions. It can be confidently employed in construction of hydraulic structures, marine works, mass concreting such as dams, dykes, retaining walls foundations and sewage pipes.

What is difference between PSC and PPC cement?

PSC lessens the risk of shrinkage cracks and cracking. Strength gain is less in PPC and it is also not suitable for high performance concrete and quick concrete setting whereas PSC brings ultimate strength and excellent finish, hence PSC holds the upper hand.

Which is costly OPC or PPC?

Cost. The cost of OPC is around 300 rupees per bag which is slightly more expensive than PPC. Whereas in the case of PPC, the expensive clinker is replaced by pozzolanic Material such as fly ash hence the price of PPC is slightly less than who OPC.

What is OPC 53 grade cement?

OPC 53 Grade cement is required to conform to BIS specification IS:12269-1987 with a designed strength for 28 days being a minimum of 53 MPa or 530 kg/sqcm. 53 Grade OPC provides high strength and durability to structures because of its optimum particle size distribution and superior crystallized structure.

What is OPC cement?

Ordinary Portland cement (simply called ordinary cement) refers to the hydraulic binding material ground by mixing Portland cement clinker, 6% ~ 15% blended materials, and appropriate amount of gypsum, code-named P• O.

What is the difference between cement and portland cement?

Portland cement is not a brand name, but the generic term for the type of cement used in virtually all concrete, just as stainless is a type of steel and sterling a type of silver. Therefore, there is no such thing as a cement sidewalk, or a cement mixer; the proper terms are concrete sidewalk and concrete mixer.

Who uses portland cement?

6 Application. Portland cement is used for general construction purposes where special properties are not required. It is normally used for the reinforced concrete buildings, bridges, pavements, and where soil conditions are normal.

What type of cement is portland cement?

Type 1 - Normal portland cement. Type 1 is a general use cement. Type 2 - Is used for structures in water or soil containing moderate amounts of sulfate, or when heat build-up is a concern. Type 3 - High early strength.

Is sand a pozzolana?

An additional confirmation of the above statements is derived from the fact that when pozzolana is referred to by other Latin authors, it is not as a sand, but nearly always as a pulvis.

How was pozzolana formed?

pozzolana, also spelled pozzuolana, hydraulic cement perfected by the Romans and still used in some countries, traditionally made by grinding a material of volcanic origin (the pozzolan) with powdered hydrated lime.

What do you mean by pozzolana in building construction?

A pozzolana is a natural or artificial material containing silica in a reactive form. By themselves, pozzolanas have little or no cementitious value. However, in a finely divided form and in the presence of moisture they will chemically react with alkalis to form cementing compounds.

What is the difference between Portland and pozzolan cement?

Portland Pozzolana Cement is a variation of Ordinary Portland Cement. Pozzolana materials namely fly ash, volcanic ash, are added to the OPC so that it becomes PPC. Pozzolana materials are added to the cement in the ratio of 15% to 35% by weight.

Which is better OPC 43 and OPC 53?

OPC 53 sets quicker than OPC 43 and has a quite low initial setting time. It is used in structures where rapid strength gain is required like large load bearing structures like bridges, huge buildings, etc. OPC 43 on the other hand doesn't set so quickly and has a normal initial and final setting time.