Portland Pozzolana Cement (PPC)
Comos Cement Industries has been producing Pozzolana Portland Cement (PPC) under the brand name "TEJ Cement" and "Cosmos Cement"
Physical Features of "Tej" and "Cosmos" PPC Cements
|
Nepal Standard (NS) Minimum Requirement for PPC Cement |
Tej and Cosmos Cement (OPC) | |
| Fineness | ||
| Blain (Cm2/gm) | 2500 | 3400 |
| Compressive Strength (N/mm2) | ||
| 3 Days | 16 | 22 |
| 7 Days | 22 | 40 |
| 28 Days | 33 | 55 | Setting Time (Minutes) |
| Initial (Min) | 30 | 180 |
| Final (Max) | 600 | 400+-30 |
