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Ordinary Portland Cement (OPC) 33 Grade is a widely used type of cement in construction, known for its versatility and strength. It is primarily composed of clinker, which is produced by heating limestone and clay in a kiln. After cooling, the clinker is finely ground to produce cement. OPC is typically used for general construction purposes, including residential and commercial buildings, pavements, and precast concrete products.
| Grade | 33 Grade |
| Compressive strength | Minimum 33 MPa at 28 days |
| Setting time | Initial setting time: 30-60 minutes; Final setting time: 600 minutes |
| Chemical composition | Silica, Alumina, Iron oxide, and Calcium oxide |
| Standard packaging | 50 kg bags or bulk delivery |
When selecting OPC 33 Grade cement, buyers should consider the specific requirements of their project, including the desired compressive strength and setting times. It is also important to check for compliance with local standards and certifications. Buyers should specify the quantity needed and whether they require bulk delivery or packaged bags, as well as any specific performance characteristics relevant to their application.
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OPC is known for its quick setting and high strength, making it suitable for a wide range of construction applications.
Yes, it is suitable for general structural applications where moderate strength is required.
When stored properly, OPC can have a shelf life of up to 3 months.
OPC has moderate water resistance; for high moisture environments, consider using specialized cements.
The production of OPC can have a significant carbon footprint; consider using blended cements for more sustainable options.
It should be stored in a cool, dry place, protected from moisture and direct sunlight.