Seven Rings Special is a Portland Composite Cement (PCC). This type of cement is mainly designed and used to improve durability of concrete.
It is manufactured by inter-grinding three major mineral components (MIC) – Pulverized Fuel Ash (PFA), Blast Furnace Slag and Limestone with common raw materials, Clinker and Gypsum.
Technical Information
| Specification & Composition | BDS EN 197-1:2003, CEM II/A-M(S-V-L), 42.5 N ASTM C595 |
| Clinker | 80% – 94% |
| Slag, Fly ash & Limestone | 6% – 20% |
| Gypsum | 0% – 5% |
Application
- Basement, Foundation and all RCC structures
- Residential Buildings and High-Rise Buildings
- Dam blocks and under water structures
- Commercial structures
- Marine structures
- Pillar & Slab of Bridges & Culverts
PCC is typically used in developed countries due to its durability and strengthening properties. The famous Hoover Dam in the USA, Petronas Twin Tower in Malaysia and Burj Khalifa Tower (160 floors, 828 m) in Dubai are few examples of structures built with composite cement. Padma Bridge is being constructed with PCC cement
