What is the advantage of ordinary Portland cement?
Advantages of Ordinary Portland Cement It has great resistance to cracking and shrinkage but has less resistance to chemical attacks. Initial setting time of OPC is faster than PPC so it is recommended in projects where props are to be removed early.
What is ordinary Portland cement?
2 Ordinary Portland 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 are the advantages and disadvantages of cement?
Advantages and Disadvantages of concrete
| Advantages of concrete | Disadvantages of concrete |
|---|---|
| It possesses high compressive strength to withstand a huge amount of load. | It has low tensile strength and hence cracks are developed. |
What are the disadvantages of PPC cement?
Cons of PPC over OPC:
- Setting time of PPC is less than OPC.
- PPC is difficult to handle due to its high fineness.
- Its initial strength is lower than OPC. Hence props cannot be removed early.
- Curing period of PPC is little lower than OPC.
What are the uses of portland cement?
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 difference between Type 1 and Type 2 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.
What is the strength of ordinary portland cement?
The Ordinary Portland Cement (OPC) produced by National Cement is quality cement with 42.5 R Strength Class. Portland cement is the most common type of cement in general use around the world, used as a basic ingredient of concrete, mortar, stucco, and most non-specialty grout.
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.
What are disadvantages of cement?
Disadvantages of Cement Cement can’t be used for large-scale construction works since it has higher heat hydration than concrete. The durability of cement is low. Cement is less solid than concrete and prone to cracking. It is also difficult to cure, thus making it unsuitable for areas that are susceptible to movement.
Where is portland cement used?
What are the advantages of portland pozzolana cement?
Portland pozzolana cement (PPC) has following advantages when concrete is in its hardened state.
- Compressive Strength & Rate of Strength Gain.
- Modulus of Elasticity.
- Bond of Concrete to Steel.
- Heat of Hydration.
- Reduced Shrinkage.
- Permeability.
What are the pros and cons of ordinary portland cement over ppc?
Both Ordinary Portland Cement (OPC) and Portland Pozzolana Cement (PPC) are used in constructions. However, some pros and cons of OPC over PPC are listed below. 01. Initial setting time of OPC is faster than PPC so it is recommended in projects where props are to be removed early. 02. It is easy to handle as compared to PPC. 03.
What are the disadvantages of Portland pozzolana cement?
Disadvantages of portland pozzolana cement are that the rate of development of strength is initially low as … What are the advantages and disadvantages of Ordinary …
What is ordinary portland cement used for?
Also used in most concrete masonry units. It is also used as a basic component in mortar, plaster, and non-specialty grout. Ordinary portland cement is a complex product derived from unprocessed common natural materials like limestone and clay.
What are the pros and cons of OPC over ppc?
Both Ordinary Portland Cement (OPC) and Portland Pozzolana Cement (PPC) are used in constructions. However, some pros and cons of OPC over PPC are listed below. 01. Initial setting time of OPC is faster than PPC so it is recommended in projects where props are to be removed early.